Technical Specification of Ground Based Tower of 30, 40

Technical Specification of Ground Based Tower of 30, 40 & 50m height (Including Foundation, Earthing System & Aviation Warning Lamp)

Specification No.: UTL/GBT/02-01 OCT 2011

United Telecom Limited (JV of MTNL, TCIL, TCL & NVPL) Triveni Complex, Putali Sadak, Kathmandu, Nepal Price: NRs. 1130 (Including VAT)

Technical Specification of Ground Based Tower of 30, 40 & 50m height (Including Foundation, Earthing System & Aviation Warning Lamp)

Specification No.: UTL/GBT/02-01 OCT 2011

United Telecom Limited (JV of MTNL, TCIL, TCL & NVPL) Triveni Complex, Putali Sadak, Kathmandu, Nepal

UTL/GBT/02-01 OCT 2011

Page 2 of 44

Table of Contents Chapter

Title

Page

1.

General Specifications

4

2.

Bill of Materials of Towers & Foundation

11

3.

Earthing System & Lightening Arrestor

40

4.

Aviation Warning Lamp

43

5.

Key Diagrams

44


Page 3 of 44

Chapter-1 General Specifications 1.0

Introduction This document contains the generic requirements of 50, 40 and 30 m Ground Based Tower for Cellular wireless systems etc. The towers shall be four legged and able to support the loading of the antennas as given below: a. 6 Nos. of panel antennas for cellular wireless systems at 35m from ground level for 40 & 50m GBT. In case of 30m GBT, 6 Nos. of panel antennas for cellular wireless systems at 1m from the top. b. 2 Nos. of 2.4m solid parabolic antenna at 2.5m from the top. c.

1 Nos. of 1.8m solid parabolic antenna at 2.5m from the top.

d. 2 Nos. of 1.2m solid parabolic antenna at 8m from the top.

1.1

e.

4 Nos. of 0.6m solid parabolic antenna at 8m from the top.

f.

3 Nos. of 1.8m solid parabolic antenna at 10m from the top.

Other parameter for designing of Ground Based Towers shall be as under a. Factor of Safety = 1.5 b. Basic Wind Speed = 180 Km/hr c. Terrain Category = 2 d. Tower twist and sway is found to be less than 0.5 deg @ 75% of basic wind speed.

2.0

Detailed Technical Requirements

2.1

Type of Tower Four legged 50m, 40m and 30m ground base tower with square base.

2.2

Height of Tower 50m, 40m and 30m as per drawing attached.

2.3

Foundation The Raft type of Foundation of the tower has been designed basically for soft soil with safe bearing capacity of 70KN/ m2 (min). The foundation reinforcement detail for soft soil is given in Chapter-2.


Page 4 of 44

The back filling should be done by proper compaction of soil in layers & it should be done before erection of tower. Material: M-20 grade concrete shall be used. High yield strength deformed steel bars of grade FE-415 conforming to IS: 456 shall be used. Bending of bars shall be as per IS: 2502 (1963). Non-galvanizing steel structures such as Anchor bolts etc. should be painted with red oxide coating. The base plates should be galvanized as some portion of them may be directly exposed to environment. 2.4

Super Structure

2.4.1 Legs/ Bracings Material: MS angles of grade ‘A’ as per IS 2062, IS: 808 (1989) shall be used. Finish: All MS angles are to be hot dip galvanized as per IS: 4759 (1996). Zinc for galvanizing should conform to IS: 13229- 1991 or IS: 209 (1992). 2.4.2 Gusset/ Splice Plates Material: MS Plates of grade ‘A’ as per IS 2062 shall be used. Finish: All the plates are to be hot dip galvanized as per IS: 4759 (1996). Zinc for galvanizing should conform to IS: 13229- 1991 or IS: 209 (1992). 2.4.3 Nuts, Bolts & Washers Material: Nuts and bolts of grade 5.6 as per IS: 6639 (1972), IS: 1364, IS: 1367 part 8 (1992) and plain washers as per IS: 6610 (1972) & spring washers of type ‘B’ as per IS: 3063 (1994) shall be used. Finish: Nuts, bolts and Washers are to be hot dip galvanized as per IS: 1367. 2.5

Connection between Vertical Legs and Bracings Vertical legs and bracings shall be connected to each other at site by gusset/splice plates with nuts, bolts and washers by user as per design. The design of tower members and joints shall be in accordance with the relevant provisions in BIS document IS: 800 (1984).

2.6

Fabrication i.

The tower is designed as per IS: 800-1984 and IS: 802 (part-I).

ii.

Tolerances in fabrication shall be allowed as per IS: 7215-1974.

iii.

All holes shall be punched or drilled with tolerances confirming to IS-1367 part VIII.


Page 5 of 44

2.7

2.8

iv.

No holes shall be formed by gas cutting.

v.

All welding procedures shall be in accordance with IS: 1969.

Galvanization i.

All steel members to be hot dip galvanized as per IS: 4759, bolts and nuts as per IS1367 part VIII.

ii.

Minimum coating Thickness less than 2mm

: 43 Micron

Thickness 2mm to 5mm

: 65 Micron

Thickness more than 5mm

: 85 Micron

Arrangement for feeder cable rack One cable rack for running feeder cables from the rear of the antennas up to the Base Transceiver Station (BTS) equipment shall be provided. Suitable supports shall be provided for all the feeder cables runs at 825mm each or as per tower designs/ drawings. Width of each rack shall be 500 mm.

2.9

Ladder A ladder shall be provided internally for the entire 30/40/50m height of the tower. Hoops and runners shall be provided to ensure the safety of the persons climbing the tower. Ladder width/pitch shall be of 500 mm and 300mm respectively. The diameter of safety hoops shall be 750mm and Guard radius should be 375mm.

3.0

Platforms Three Working platforms with railing all around shall be provided for mounting panels and microwave antennas. In addition two, three and four resting platforms for 30 metre, 40 metre and 50 metre respectively shall be provided. The platforms shall be located as given below: For 50m tower (internal) i.

2.5m from the top (working platform)

ii.


iii. 12.5m from the top(working platform) iv. 15.0m from the top (resting platform) v.

23.5m from the top (resting platform)


Page 6 of 44

vi.


vii. 40.0m from the top (resting platform) For 40m tower (internal) i.


ii.


iii. 12.5m from the top (working platform) iv. 15.0m from the top (resting platform) v.


vi. 31.0m from the top (resting platform) For 30m tower (internal) i.


ii.


iii. 12.5m from the top (working platform) iv. 15.0m from the top (resting platform) v. 4.0


Wind Velocity Tower shall be operational and able to withstand the wind velocity corresponding to wind 180 Km/Hr of IS: 875 (Part 3) (1987).

5.0

Lightning Arrestor Lightning arrestor using lightning rod made of copper, with 16 mm diameter and 1200 mm length as per IS: 613(2000)] with a spike on one end and threading on the other shall be provided on the top of the tower. Tin coated copper wire IS mark of gauge 50 sq. mm shall be provided from lower of the lightning rod to the lug with a hole provided at 0.5 m below the top of the tower. The supply of the material and installation shall be in the scope of the suppliers.

6.0

Aviation Warning Lamps Fixing arrangement for twin type aviation warning lights at the top level shall be provided. Aviation Warning Lamps shall conform to ICAO regulation.


Page 7 of 44

Note:

7.0

i.

Screened PVC insulated twin copper wire of size 3/22 (IS Marked) will be used for connection of aviation warning lamp to the power supply.

ii.

The aviation warning lamps and Screened PVC insulated twin copper shall be supplied by tower supplier. The detail specification is attached in Chapter-4.

Antenna mounting Antennas- GI pipes, conforming to IS: 1161(1998) with minimum Yst220 Mpa with 65 medium class, 3.0 meter long for cellular wireless system antenna (6 Nos.); NB 80 medium class, 1.0 metre long for 0.6m to 1.2m diameter microwave antenna (6 Nos.) and NB 100 medium class, 2.0 metre long for 1.8m and 2.4 m microwave antenna (6 Nos.) along with the fixtures/ clamps for leg mounting should be provided as per details given in the BoM.

8.0

Verticality The verticality of tower (i.e. the bottom of the line joining the centre of the top of the tower and the center of the base) shall be as given in IS: 12843:1989, Table iii (b). Note: This shall be checked in the field after the erection of the tower at sites.

9.0

Earthing For earthing of the tower, 50x3mm GI strips should be bounded to the all four tower legs at the termination of the gusset plate of first joint and connected to ring earth at the other end. Two plate earthing and ring earthing materials shall be supplied by tower suppliers. (The maximum value of earth resistance shall be 2.0 Ohm. For more details please refer to Chapter-3.

10.0 Welding Welding shall be done as per IS: 9595 (1996) and test for quality of welding will be carried as prescribed in the test schedule/test procedure. Welding connections of Base Plate shall be as per IS 800:1984. 11.0

Marking Manufacture’s identity marking and item marking shall be provided on each section by punching & painting for Enabling easy assembly and trace -ability. Smaller elements, on which complete marking detail are not practicable, shall be supplied in suitable packing boxes and each box shall be clear marking details such as name of sites, height of the tower and other details as given above. However, part No. / Item No. shall be marked on all tower elements. The tower supplier shall also provide the tower component manufacturer’s identity / source. A plate indicating the manufacturer’s identity, year of manufac-


Page 8 of 44

ture, wind velocity and the maximum load capacity of the tower shall be supplied by the manufacturer for display at the bottom of the tower. The top horizontal members of the tower on all the four faces should have center clearly by visibly marked for easy check of vertically. 12.0

Painting The tower shall be coloured with alternate bands of orange & white or red and white paint as per ICAO recommendations. The Ready mixed Paint, Primer, Enamel etc., used for tower painting, shall be as per the following IS codes: 1.

IS 2074(1992): Ready Mixed Paint, Air Drying, Red oxide Zinc Chrome, Priming – Specification;

2.

IS 2932(1993): Enamel, Synthetic, Exterior: a. Undercoating b. Finishing – Specification;

3.

IS 2933(1975): Enamel exterior (a) undercoating, (b) finishing; the tower painting shall be done after tower erection.

13.0 Documentation Two hard copies and one soft copy of complete documents along with installation details, in English, shall be supplied by the supplier. 14.0 Weight of Towers 50/40/30 m Tower (Tolerance in weight: ± 3%) a. Weight of Tower structures, inclusive of all parts of Superstructure (including base plate, anchor bolts but excluding the weight of antenna fixtures, nuts, bolts and earth strip) are 17,477Kg 12,432Kg and 8,215Kg for 50 metres, 40 metres and 30 metres height of tower respectively. b. Weight of cellular wireless system antenna mounting arrangement (per antenna): 40.6Kg. c. Weight of microwave antenna mounting arrangement (per antenna): 31.6 Kg (for 0.6 m to 1.2 m dia.) and 56.9 Kg (for 1.5m to 2.4m dia.). d. Weight of nuts, bolts and washers for tower structure: 551Kg, 532Kg and 409Kg for 50m, 40m and 30m height of tower respectively. 15.0 Weight of Foundations 50/40/30 m Tower Foundation


Page 9 of 44

a. Weights of steel reinforcement (but excluding RCC) are 3,014.10 Kg, 1,828.37 Kg and 1,340.94 Kg for 50m, 40m and 30m towers respectively. b. Volumes of RCC M20 grade are 42.02 m³, 23.218 m³ and 15.45m³ for 50, 40 and 30 metres tower foundation respectively. Volumes of PCC M10 grade are 5.93m³, 3.6 m³ and 2.5m³ for 50, 40 and 30 metres tower foundations respectively. 16.0 Bill of Material The bill of Materials for all the towers is given in Chapter-2. 17.0

Design The detailed drawing of the tower shall be as per technical specification No. UTL/GBT/01-01 OCT 2011 of UTL. Notes: 1.

All the major components of material for tower shall be procured from the IS approved sources and certificate to this affect shall be given by manufacturer.

2.

All responsibility for tower erection shall lie with the supplier/erection agency which shall follow safety norms as per IS 7205(1974)".

3.

All IS standards are subject to revision and the most recent editions of the standards shall be applicable.

4.

All unspecified holes in tower members are 17.5mm diameter for 16 mm bolts conforming to Class 5.6. All unspecified plates 6 mm thick.

5.

Structural steel shall conform to IS 2062 grade-A with minimum yields stress of 2550 kg/ sq. cm.

6.

Spring washers are to be used under each nut.

7.

Tower accessories include lightening protection system, grounding system (including plate earthing and ring earthing), earth strips, ladder, vertical and horizontal feeder support, antenna mounting structures, working and resting platform.

8.

Angular rotation & twist are less than 0.5º and twist is less than 0.5 º.

9.

Minimum thickness of the members considered is: Leg members

5 mm

Lattices/ Belts

5 mm

Redundant members

5 mm

10. The foundation bolts at the base of the legs should be monolithic with the concrete in

the foundation.


Page 10 of 44

Chapter-2 Bill of Material for Ground Based Tower 2.1 Bill of Material for 30m Ground Based Tower Sl. No.

Description Horizontal

Minor Bracing

1.

Panel 13 to18

Redundant

Diagonal

Railing flat

Gusset Plate

Splice Cleat angle Splice Cleat Plat Splice Cleat Packing Plat Leg

2.

Panel 10 to 12

Horizontal

Minor Bracing Redundant


1A

L75x5

4

1975

Weight/ piece 11.3

1B

L75x5

6

1975

11.3

67.5

1B-X

L75x5

6

1975

11.3

67.5

1C

L75x5

4

1975

11.3

45.0

1C-X

L75x5

4

1975

11.3

45.0

4

L45x5

40

1063

3.6

144.6

20 3 5 19 21 6 18 18A 9 14 22 2 8 16 12 13 10

L45x5 L45x5 L45x5 L45x5 L45x5 L65x5 L65x5 L65x5 Fl 50x5 Fl 50x5 Fl 50x5 271x201x6 271x328x6 271x328x6 L90x90x8 L90x90x10 PL 80x351x8

8 40 40 8 8 40 4 4 8 4 4 8 32 8 4 4 16

1068 815 871 844 798 3332 3276 3276 1113 1113 1136 271 271 271 356 356 351

3.6 2.8 3.0 2.9 2.7 16.3 16.1 16.1 2.2 2.2 2.3 2.6 4.2 4.2 3.8 4.8 1.8

29.0 110.8 118.5 23.0 21.7 653.1 64.2 64.2 17.8 8.9 9.1 20.5 134.0 33.5 15.4 19.1 28.2

11

PL 50x150x2

16

150

0.1

1.9

7 15 17 23

L100x8 L100x10 L100x10 L75x5

4 4 4 1

4623 4994 5050 2223

55.9 74.4 75.2 12.7

223.8 297.6 301.0 12.7

23X

L75x5

1

2223

12.7

12.7

23A

L75x5

1

2223

12.7

12.7

23A-X

L75x5

1

2223

12.7

12.7

37

L65x5

1

2408

11.8

11.8

37-X

L65x5

1

2408

11.8

11.8

37A 27 32 26

L65x5 L45x5 L45x5 L45x5

2 8 8 8

2408 1110 1211 827

11.8 3.8 4.1 2.8

23.6 30.2 32.9 22.5

Marked

Section

Nos.

Length

Total Weight 45.0

Page 11 of 44

Sl. No.

Description

Diagonal

Gusset Plate

Splice Cleat Angle Splice Cleat Plate Leg Horizontal

Panel 8 to 9

Redundant

3.

Diagonal

Gusset Plate


28 31 33 41 42 43 44 45 25 25A 34 34A 40 40A 24 24X 29 38 36 35 30 39 47

L45x5 L45x5 L45x5 L45x5 L45x5 L45x5 L45x5 L45x5 L65x5 L65x5 L65x5 L65x5 L65x5 L65x5 PL161x436x8 PL161x436x8 PL155x314x8 PL215x288x8 L110x110x10 PL120x470x8 L130x130x12 L130x130x12 L75x5

8 8 8 8 8 8 8 4 4 4 4 4 4 4 4 4 8 8 4 8 4 4 1

843 877 889 784 1606 1743 739 952 3385 3385 3576 3576 4496 4496 436 436 314 215 470 120 5175 3650 2688

Weight/ piece 2.9 3.0 3.0 2.7 5.5 5.9 2.5 3.2 16.6 16.6 17.5 17.5 22.0 22.0 4.4 4.4 3.1 3.9 7.8 3.5 121.6 85.8 15.3

47-X

L75x5

1

2688

15.3

15.3

47A

L75x5

1

2688

15.3

15.3

47A-X

L75x5

1

2688

15.3

15.3

58

L65x5

1

2981

14.6

14.6

58-X

L65x5

1

2981

14.6

14.6

58A

L65x5

2

2981

14.6

29.2

50

L45x5

8

890

3.0

24.2

51

L45x5

8

1630

5.5

44.3

52

L45x5

8

1741

5.9

47.4

53

L45x5

8

837

2.8

22.8

54

L45x5

4

1071

3.6

14.6

361

L45x5

8

974

3.3

26.5

362

L45x5

8

1423

4.8

38.7

363

L45x5

8

1517

5.2

41.3

364

L45x5

8

835

2.8

22.7

49

L65x5

4

4685

23.0

91.8

49A

L65x5

4

4685

23.0

91.8

360

L65x5

4

4516

22.1

88.5

360A

L65x5

4

4516

22.1

88.5

48

PL225x240x8

8

225

3.4

27.1

Marked

Section

Nos.

Length

Total Weight 22.9 23.9 24.2 21.3 43.7 47.4 20.1 12.9 66.3 66.3 70.1 70.1 88.1 88.1 17.6 17.6 24.5 31.1 31.2 28.3 486.5 343.1 15.3

Page 12 of 44

Sl. No.

Description

7.

PL225x235x8

8

225

68

PL225x255x8

8

225

3.6

28.8

Section

Nos.

Length

Total Weight 26.6

78

PL205x401x8

8

205

5.2

41.3

Splice Cleat Angle

355

L130x130x12

8

530

12.5

99.6

Splice Cleat Plate Leg

356 46 366 S30 B30

PL140x530x10 L150x150x12 L150x150x12 L150x150x12 PL450x450x25 Rod 25 L65x5 L65x5 L65x5 L65x5 L65x5 L65x5 L65x5 L65x5 L75x5 L75x5 L65x5 L65x5 Fl 50x4 L45x5 Mesh 2217x844 Fl 50x4 Fl 50x4 Fl 50x4 Mesh 2219x845 Fl 50x4 Fl 50x4 Fl 50x4 L45x5 L45x5 Fl 50x4 Mesh 720x974 Fl 50x4 Fl 50x4 L45x5 L65x5 L65x5 L75X5 PL125X170X6 L65x5 L65x5

16 4 4 4 3 48 2 2 3 3 1 1 1 1 1 1 1 1 12 12 6 6 12 6 1 1 2 2 1 1 1 1 2 3 1 1 1 1 4 2 2

140 3750 3112 620 450 1400 2217 2217 2217 2217 2219 2219 2666 2666 2975 2975 3278 3278 542 739 2217 1825 256 2217 2219 2219 186 591 789 789 1923 720 720 874 720 720 720 2975 125 1197 1197

5.8 102.4 85.0 16.9 39.7 5.5 10.9 10.9 10.9 10.9 10.9 10.9 13.1 13.1 17.0 17.0 16.1 16.1 0.9 2.5 20.6 2.9 0.4 3.5 20.6 3.6 0.3 0.9 2.7 2.7 3.1 7.7 1.2 1.4 2.4 3.5 3.5 17.0 1.0 5.9 5.9

93.2 409.5 339.8 67.7 119.2 262.1 21.7 21.7 32.6 32.6 10.9 10.9 13.1 13.1 17.0 17.0 16.1 16.1 10.4 30.2 123.5 17.5 4.9 21.3 20.6 3.6 0.6 1.9 2.7 2.7 3.1 7.7 2.3 4.2 2.4 3.5 3.5 17.0 4.0 11.7 11.7

Stump Base Plate Foundation Bolt Ladder support

Ladder Support

4. 5. 6.

59

Weight/ piece 3.3

Marked

Platform

Platform

8.


LS1 LS1X LS2 LS2X LS3 LS4 LS5 LS5X LS6 LS7 LS8 LS8X P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 P13 P14 P15 P16 P17 P18 P19 P20 P21 P22 P22X

Page 13 of 44

Sl. No.

Description

794 794 125 1193 1193 729 729 324 324 3608

Weight/ piece 1.3 3.0 1.0 5.8 5.8 1.2 2.8 0.5 1.2 24.5

Total Weight 1.3 3.0 2.0 5.8 5.8 2.3 5.5 0.5 1.2 24.5

1 1 9 3 3

2697 2697 510 2024 2419

8.1 8.1 0.8 2.6 3.1

8.1 8.1 7.3 7.9 9.4

L50X50X4 L50X50X4 R16 DIA FLAT 40X4 FLAT 40X4 FLAT 40X4 FLAT 40X4 L65X65X5 FLAT 40X4

1 1 13 3 1 2 1 2 6

3894 3894 510 2024 1032 3788 2615 206 166

11.7 11.7 0.8 2.6 1.3 4.9 3.4 1.0 0.2

11.7 11.7 10.6 7.9 1.3 9.8 3.4 2.0 1.3

L3L L3R ROD16 CR1 CR2 CF3 CF3A SA1 SF1


1 1 17 3 2 2 1 2 4

5086 5086 510 2024 1032 5192 2040 206 166

15.3 15.3 0.8 2.6 1.3 6.7 2.7 1.0 0.2

15.3 15.3 13.9 7.9 2.7 13.5 2.7 2.0 0.9



1 1 17 4 1 2 1 2 4

5111 5111 510 2024 1032 5111 3527 206 166

15.3 15.3 0.8 2.6 1.3 6.6 4.6 1.0 0.0

15.3 15.3 13.9 10.5 1.3 13.3 4.6 2.0

Marked

Section

Nos.

Length

P23 P24 P25 P26 P26X P27 P28 P29 P30 P31

Fl 50x4 L50X5 PL125X170X6 L65x5 L65x5 Fl 50x4 L50X5 Fl 50x4 L50X5 L75X6

1 1 2 1 1 2 2 1 1 1

L1L L1R ROD16 CR1 CF1

L50X50X4 L50X50X4 R16 DIA FLAT 40X4 FLAT 40X4


Ladder L1

9.

Ladder L2

10.

Ladder L3

11.

Ladder L4

12.


Page 14 of 44

Sl. No.

Description

Marked

Section

Nos.

Length

Weight/ piece

Total Weight

Ladder L5

13.



1 1 16 3 2 2 1 2 6

4786 4786 510 2024 1032 4786 2507 206 166

14.4 14.4 0.8 2.6 1.3 6.2 3.3 1.0 0.2

14.4 14.4 13.1 7.9 2.7 12.4 3.3 2.0 1.3

L306L L306R ROD16 CR1 CF306 SA1 SF1

L50X50X4 L50X50X4 R16 DIA FLAT 40X4 FLAT 40X4 L65X65X5 FLAT 40X4

1 1 17 4 3 2 6

5911 5911 510 2024 3333 206 166

17.7 17.7 0.8 2.6 4.3 1.0 0.2

17.7 17.7 13.9 10.5 13.0 2.0 1.3

CL1L CL1R CLF

L50X50X4 L50X50X4 FLAT 40X4

1 1 4

2697 2697 480

8.1 8.1 0.6

8.1 8.1 2.5

CL2L CL2R CLF


1 1 4

3894 3894 480

14.8 14.8 0.6

14.8 14.8 2.5

SA1

L65X65X5

2

206

0.0

CL3L CL3R CLF


1 1 6

5086 5086 480

15.3 15.3 0.6

15.3 15.3 3.7

SA1

L65X65X5

2

206

1.0

2.0

CL4L CL4R CLF


1 1 7

5111 5111 480

15.3 15.3 0.6

15.3 15.3 4.4

SA1

L65X65X5

2

206

1.0

2.0

CL5L CL5R CLF


1 1 5

4786 4786 480

14.4 14.4 0.6

14.4 14.4 3.1

SA1

L65X65X5

2

206

1.0

2.0

CL6L CL6R

L50X50X4 L50X50X5

1 1

5911 5911

17.7 22.5

17.7 22.5

Ladder L306

14.

Cable Ladder CL1 15. Cable Ladder CL2 16.

Cable Ladder CL3 17.





Page 15 of 44

Sl. No.

Description

CLF

FLAT 40X4

7

480

Weight/ piece 0.6

SA1

L65X65X6

2

206

1.2

2.4

HL6L

L50X50X4

1

5111

15.3

15.3

HL6R

L50X50X5

1

5111

19.4

19.4

CLF

FLAT 40X4

14

480

0.6

8.7

Pipe

NB50M

6

3000

15.3

91.8

Angle

Marked

Section

Nos.

Length

Total Weight 4.4

Horizontal cable Ladder 21.

22.

L65X65X6

3

600

3.5

10.4

Foundation Template Main angle

L65x5

4

3158

15.5

61.9

Corner angle

L50x5

4

2170

8.2

33.0

Plate

Pl 550x550x10

4

450

15.9

63.6

Nut Bolt

L/S

5.0

Total Weight of Tower

8215.0

2.1.1 Antenna mounting structure for sector / cellular wireless antenna per set.

1.

L65X65X6

AC1

2

750

Total Weight 8.7

2.

ISMC75

AC2

2

320

4.6

3.

ISMC75 UCLAMP PLAIN ROD 16DIA

AC2A

2

320

4.6

AC3

2

335

1.1

BP1

1

3000

19.3

Sl. No.

4.

Description

Marked

Nos.

Length

5.

PIPE NB65M

6.

BOLT

M16X125

8

1.6

7.

NUT

M16

12

0.5

8.

PLAIN WASHER

M16

12

0.3

9.

M16 SPRING WASHER Total Weight of Each

12

0.1

Total Weight for 6 sets @ 40.6 Kg


40.6 243.6

Page 16 of 44

2.1.2 For Microwave 0.6m diameter to 1.2m diameter per set.

1.

L75X75X6

MW1

2

500

Total Weight 6.8

2.

ISMC75

MW2

2

420

6.0

3.

MW2A

2

420

6.0

MW3

2

380

1.2

5.

ISMC75 UCLAMP PLAIN ROD 16DIA PIPE NB80M

BP2

1

1000

8.4

6.

BOLT

M16X175

8

2.0

7.

NUT

M16

12

0.9

8.

PLAIN WASHER

M16

12

0.3

9.

SPRING WASHER

M16

12

0.1

Sl. No.

4.

Description

Marked

Nos.

Length

Total Weight of Each

31.6


189.6

2.1.3 For Microwave 1.5m diameter to 2.4m diameter per set.

1.

L100X100X6

MW1

2

500

Total Weight 9.2

2.

ISMC100

MW2

2

420

8.0

3.

MW2A

2

420

8.0

MW3

2

430

2.2

5.

ISMC100 UCLAMP PLAIN ROD 20DIA PIPE NB100M

BP3

1

2000

24.4

6.

BOLT

M20X175

8

4.0

7.

NUT

M20

12

0.5

8.

PLAIN WASHER

M20

12

0.4

9.

SPRING WASHER

M20

12

0.2

Sl. No.

4.

Description


Marked

Nos.

Length


56.9


341.4

Page 17 of 44

2.1.4 Bill of Material for Foundation for 30m Ground Based Tower. Sl. No. 1. 2. 3.

L

B

H/D

m

m

m

Qty

Unit

1

5

5

3.3

82.5

m3

1

5

5

0.2

5

m3

1

5

5

0.1

2.5

m3

On raft

1

5

5

0.45

11.25

m3

on pedestal shaft

4

0.55

0.55

2.75

3.3275

m3

on tie beam

4

2.908

0.25

0.3

0.8724

m3

15.4499

m3

Item of work Earth work on excavation 8" soling on foundation PCC 1:3:6

Nos.

RCC 1:1.5:3 (M20) 4.

Total RCC M20 Form work 5.

On raft

1

20

0.45

9

m2

on pedestal shaft

4

2.2

2.75

6.05

m2

on tie beam

4

2.908

0.6

1.7448

m2

16.7948

m2

Total form work Reinforcement steel work on raft main bar 16 DIA

128

5.25

@

1.58

1061.76

kg

chairs 12 DIA

16

1.5

@

0.88

21.12

kg

on pedestal shaft 6.

kg

main bar 25 DIA

12

4.2

@

3.9

196.56

kg

stirrups1 8 DIA

17

1.95

@

0.4

13.26

kg

stirrups2 8 DIA

17

1.378858

@

0.4

9.376236

kg

on tie beam

7

kg

main bar 16 DIA

4

5.115

@

1.58

32.3268

kg

stirrups3 6 DIA

27

1.1

@

0.22

6.534

kg

1340.937

kg

59.5501

m3

Total reinforcement work Earthwork on Backfilling


Page 18 of 44

2.2 Bill of Material for 40m Ground Based Tower Sl. No.

Description Horizontal

Minor Bracing

1.

Panel 13 to18

Redundant

Diagonal

Railing flat

Gusset Plate


2.

Panel 10 to 12

Horizontal

Minor Bracing Redundant


1A

L75x5

4

1975

Weight/ piece 11.3

1B

L75x5

6

1975

11.3

67.5

1B-X

L75x5

6

1975

11.3

67.5

1C

L75x5

4

1975

11.3

45.0

1C-X

L75x5

4

1975

11.3

45.0

4

L45x5

40

1063

3.6

144.6

20 3 5 19 21 6 18 18A 9 14 22 2 8 16 12 13 10

L45x5 L45x5 L45x5 L45x5 L45x5 L65x5 L65x5 L65x5 Fl 50x5 Fl 50x5 Fl 50x5 271x201x6 271x328x6 271x328x6 L90x90x8 L90x90x10 PL 80x351x8

8 40 40 8 8 40 4 4 8 4 4 8 32 8 4 4 16

1068 815 871 844 798 3332 3276 3276 1113 1113 1136 271 271 271 356 356 351

3.6 2.8 3.0 2.9 2.7 16.3 16.1 16.1 2.2 2.2 2.3 2.6 4.2 4.2 3.8 4.8 1.8

29.0 110.8 118.5 23.0 21.7 653.1 64.2 64.2 17.8 8.9 9.1 20.5 134.0 33.5 15.4 19.1 28.2

11

PL 50x150x2

16

150

0.1

1.9

7 15 17 23

L100x8 L100x10 L100x10 L75x5

4 4 4 1

4623 4994 5050 2223

55.9 74.4 75.2 12.7

223.8 297.6 301.0 12.7

23X

L75x5

1

2223

12.7

12.7

23A

L75x5

1

2223

12.7

12.7

23A-X

L75x5

1

2223

12.7

12.7

37

L65x5

1

2408

11.8

11.8

37-X

L65x5

1

2408

11.8

11.8

37A 27 32 26 28 31 33

L65x5 L45x5 L45x5 L45x5 L45x5 L45x5 L45x5

2 8 8 8 8 8 8

2408 1110 1211 827 843 877 889

11.8 3.8 4.1 2.8 2.9 3.0 3.0

23.6 30.2 32.9 22.5 22.9 23.9 24.2

Marked

Section

Nos.

Length

Total Weight 45.0

Page 19 of 44

Sl. No.

Description

Diagonal

Gusset Plate

Splice Cleat Angle Splice Cleat Plate Leg

3.

Panel 6 to 9

Horizontal

Redundant


41 42 43 44 45 25 25A 34 34A 40 40A 24 24X 29 38 36 35 30 39 47

L45x5 L45x5 L45x5 L45x5 L45x5 L65x5 L65x5 L65x5 L65x5 L65x5 L65x5 PL161x436x8 PL161x436x8 PL155x314x8 PL215x288x8 L110x110x10 PL120x470x8 L130x130x12 L130x130x12 L75x5

8 8 8 8 4 4 4 4 4 4 4 4 4 8 8 4 8 4 4 1

784 1606 1743 739 952 3385 3385 3576 3576 4496 4496 436 436 314 215 470 120 5175 3650 2688

Weight/ piece 2.7 5.5 5.9 2.5 3.2 16.6 16.6 17.5 17.5 22.0 22.0 4.4 4.4 3.1 3.9 7.8 3.5 121.6 85.8 15.3

47-X

L75x5

1

2688

15.3

15.3

47A

L75x5

1

2688

15.3

15.3

47A-X

L75x5

1

2688

15.3

15.3

58

L65x5

1

2981

14.6

14.6

58-X

L65x5

1

2981

14.6

14.6

58A

L65x5

2

2981

14.6

29.2

67

L75x5

1

3315

18.9

18.9

67-X

L75x5

1

3315

18.9

18.9

67A

L75x5

1

3315

18.9

18.9

67A-X

L75x5

1

3315

18.9

18.9

77

L65x5

1

3860

18.9

18.9

77-X

L65x5

1

3860

18.9

18.9

77A

L65x5

2

3860

18.9

37.8

50

L45x5

8

890

3.0

24.2

51

L45x5

8

1630

5.5

44.3

52

L45x5

8

1741

5.9

47.4

53

L45x5

8

837

2.8

22.8

54

L45x5

4

1071

3.6

14.6

61

L45x5

8

983

3.3

26.7

62

L45x5

8

1841

6.3

50.1

63

L45x5

8

1995

6.8

54.3

64

L45x5

8

921

3.1

25.1

Marked

Section

Nos.

Length

Total Weight 21.3 43.7 47.4 20.1 12.9 66.3 66.3 70.1 70.1 88.1 88.1 17.6 17.6 24.5 31.1 31.2 28.3 486.5 343.1 15.3

Page 20 of 44

Sl. No.

65

L45x5

4

1179

Weight/ piece 4.0

70

L45x5

4

1307

4.4

17.8

71

L45x5

8

1094

3.7

29.8

72

L50x5

8

2004

7.6

60.9

73

L50x5

8

2196

8.3

66.8

74

L45x5

8

998

3.4

27.1

75

L45x5

4

1299

4.4

17.7

88

L45x5

4

1442

4.9

19.6

89

L45x5

8

1161

3.9

31.6

90

L50x5

8

2047

7.8

62.2

91

L50x5

8

2162

8.2

65.7

92

L45x5

8

1088

3.7

29.6

93

L45x5

4

1434

4.9

19.5

49

L65x5

4

4685

23.0

91.8

49A

L65x5

4

4685

23.0

91.8

60

L65x5

4

5269

25.8

103.3

60A

L65x5

4

5269

25.8

103.3

69

L75x6

4

5814

39.5

158.1

69A

L75x6

4

5814

39.5

158.1

94

L75x6

4

5998

40.8

163.1

94A

L75x6

4

5998

40.8

163.1

48

PL225x240x8

8

225

3.4

27.1

59

PL225x235x8

8

225

3.3

26.6

68

PL225x255x8

8

225

3.6

28.8

78

PL205x401x8

8

205

5.2

41.3

Batten Plate

79

PL272x100x12

16

272

2.6

41.0

Splice Cleat Angle

56

L130x130x12

8

530

12.5

99.6

83

L130x130x12

4

470

11.0

44.2

84

L130x130x12

4

470

11.0

44.2

85

L130x130x12

8

470

11.0

88.4

97

L130x130x12

8

470

11.0

88.4

98

L130x130x12

8

470

11.0

88.4

55

PL140x530x10

16

140

5.8

93.2

82

Pl120x470x12

8

120

5.3

42.5

86

Pl272x470x12

4

272

12.0

48.2

95

Pl272x470x12

4

272

12.0

48.2

96

Pl120x470x12

8

120

5.3

42.5

Splice Packing Plate

57

Pl110x260x4

8

110

0.9

7.2

Leg

87 46

Pl90x230x4 L150x150x12

8 4

90 3750

0.6 102.4

5.2 409.5

Description

Diagonal

Gusset Plate

Splice Cleat Plate


Marked

Section

Nos.

Length

Total Weight 16.0

Page 21 of 44

Sl. No.

Description

Stump

4.

7.

Base Plate Foundation Bolt Ladder support

Ladder Support

5. 6.

8.

Platform

Platform


Marked 66 76 80 81 S40 S41 B40 LS1 LS1X LS2 LS2X LS3 LS4 LS5 LS5X LS6 LS7 LS8 LS8X LS9 LS10 LS11 LS11X P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 P13 P14 P15 P16 P17 P18 P19 P20 P21 P22

Section

Nos.

Length

L150x150x16 L150x150x16 L130x130x12 L130x130x12 L130x130x12 L130x130x12 PL450x450x25 Rod 25 L65x5 L65x5 L65x5 L65x5 L65x5 L65x5 L65x5 L65x5 L75x5 L75x5 L65x5 L65x5 L75x5 L75x5 L75x5 L75x5 Fl 50x4 L45x5 Mesh 2217x844 Fl 50x4 Fl 50x4 Fl 50x4 Mesh 2219x845 Fl 50x4 Fl 50x4 Fl 50x4 L45x5 L45x5 Fl 50x4 Mesh 720x974 Fl 50x4 Fl 50x4 L45x5 L65x5 L65x5 L75X5 PL125X170X6 L65x5

4 4 4 4 4 4 4 48 2 2 3 3 1 1 1 1 1 1 1 1 1 1 1 1 12 12 6 6 12 6 1 1 2 2 1 1 1 2 4 4 2 2 2 1 8 4

3950 4450 4690 4450 901 907 450 1400 2217 2217 2217 2217 2219 2219 2666 2666 2975 2975 3278 3278 3608 3608 3957 3957 542 739 2217 1825 256 2217 2219 2219 186 591 789 789 1923 720 720 874 720 720 720 2975 125 1197

Weight/ piece 141.4 159.3 110.2 104.6 21.2 21.3 39.7 5.5 10.9 10.9 10.9 10.9 10.9 10.9 13.1 13.1 17.0 17.0 16.1 16.1 20.6 20.6 22.6 22.6 0.9 2.5 20.6 2.9 0.4 3.5 20.6 3.6 0.3 0.9 2.7 2.7 3.1 7.7 1.2 1.4 2.4 3.5 3.5 17.0 1.0 5.9

Total Weight 565.6 637.2 440.9 418.3 84.7 85.3 159.0 262.1 21.7 21.7 32.6 32.6 10.9 10.9 13.1 13.1 17.0 17.0 16.1 16.1 20.6 20.6 22.6 22.6 10.4 30.2 123.5 17.5 4.9 21.3 20.6 3.6 0.6 1.9 2.7 2.7 3.1 15.4 4.6 5.6 4.9 7.1 7.1 17.0 8.0 23.5

Page 22 of 44

Sl. No.

Description

1197 794 794 125 1193 1193 729 729 324 324 3608

Weight/ piece 5.9 1.3 3.0 1.0 5.8 5.8 1.2 2.8 0.5 1.2 24.5

Total Weight 23.5 2.5 6.0 4.0 11.7 11.7 4.7 11.1 1.0 2.5 24.5

1 1 9 3 3

2697 2697 510 2024 2419

8.1 8.1 0.8 2.6 3.1

8.1 8.1 7.3 7.9 9.4


1 1 13 3 1 2 1 2 6

3894 3894 510 2024 1032 3788 2615 206 166

11.7 11.7 0.8 2.6 1.3 4.9 3.4 1.0 0.2

11.7 11.7 10.6 7.9 1.3 9.8 3.4 2.0 1.3



1 1 17 3 2 2 1 2 4

5086 5086 510 2024 1032 5192 2040 206 166

15.3 15.3 0.8 2.6 1.3 6.7 2.7 1.0 0.2

15.3 15.3 13.9 7.9 2.7 13.5 2.7 2.0 0.9

L4L L4R ROD16 CR1 CR2 CF4 CF4A SA1

L50X50X4 L50X50X4 R16 DIA FLAT 40X4 FLAT 40X4 FLAT 40X4 FLAT 40X4 L65X65X5

1 1 17 4 1 2 1 2

5111 5111 510 2024 1032 5111 3527 206

15.3 15.3 0.8 2.6 1.3 6.6 4.6 1.0

15.3 15.3 13.9 10.5 1.3 13.3 4.6 2.0

Marked

Section

Nos.

Length

P22X P23 P24 P25 P26 P26X P27 P28 P29 P30 P31

L65x5 Fl 50x4 L50X5 PL125X170X6 L65x5 L65x5 Fl 50x4 L50X5 Fl 50x4 L50X5 L75X6

4 2 2 4 2 2 4 4 2 2 1

L1L L1R ROD16 CR1 CF1

L50X50X4 L50X50X4 R16 DIA FLAT 40X4 FLAT 40X4


Ladder L1 9.

Ladder L2

10.

Ladder L3

11.

Ladder L4

12.


Page 23 of 44

Sl. No.

Description

SF1

FLAT 40X4

4

166

Weight/ piece 0.0



1 1 16 3 2 2 1 2 6

4786 4786 510 2024 1032 4786 2507 206 166

14.4 14.4 0.8 2.6 1.3 6.2 3.3 1.0 0.2

14.4 14.4 13.1 7.9 2.7 12.4 3.3 2.0 1.3

L6L L6R ROD16 CR1 CF6 CF6A SA1 SF1

L50X50X4 L50X50X4 R16 DIA FLAT 40X4 FLAT 40X4 FLAT 40X4 L65X65X5 FLAT 40X4

1 1 17 5 2 1 2 4

5111 5111 510 2024 5111 4435 206 166

15.3 15.3 0.8 2.6 6.6 5.8 1.0 0.2

15.3 15.3 13.9 13.2 13.3 5.8 2.0 0.9



1 1 17 3 2 2 1 2 4

5086 5086 510 2024 1032 5086 2526 206 166

15.3 15.3 0.8 2.6 1.3 6.6 3.3 1.0 0.2

15.3 15.3 13.9 7.9 2.7 13.2 3.3 2.0 0.9

L408L L408R ROD16 CR1 CF408 SA1 SF1

L50X50X5 L50X50X5 R16 DIA FLAT 40X5 FLAT 40X5 L65X65X6 FLAT 40X5

1 1 17 4 3 2 6

5706 5706 510 2024 3333 206 166

21.7 21.7 0.8 3.2 5.3 1.2 0.3

21.7 21.7 13.9 13.0 16.0 2.4 1.6

CL1L CL1R CLF


1 1 4

2697 2697 480

8.1 8.1 0.6

8.1 8.1 2.5

CL2L CL2R CLF


1 1 4

3894 3894 480

14.8 14.8 0.6

14.8 14.8 2.5

Marked

Section

Nos.

Length

Total Weight

Ladder L5

13.

Ladder L6

14.

Ladder L7

15.

Ladder L408

16.




Page 24 of 44

Sl. No.

Description

SA1

L65X65X5

2

206

Weight/ piece 0.0

CL3L CL3R CLF SA1

L50X50X4 L50X50X4 FLAT 40X4 L65X65X5

1 1 6 2

5086 5086 480 206

15.3 15.3 0.6 1.0

15.3 15.3 3.7 2.0

CL4L CL4R CLF SA1

L50X50X4 L50X50X4 FLAT 40X4 L65X65X5

1 1 7 2

5111 5111 480 206

15.3 15.3 0.6 1.0

15.3 15.3 4.4 2.0

CL5L CL5R CLF SA1

L50X50X4 L50X50X4 FLAT 40X4 L65X65X5

1 1 5 2

4786 4786 480 206

14.4 14.4 0.6 1.0

14.4 14.4 3.1 2.0

CL6L CL6R CLF SA1

L50X50X4 L50X50X4 FLAT 40X4 L65X65X5

1 1 7 2

5111 5111 480 206

15.3 15.3 0.6 1.0

15.3 15.3 4.4 2.0

CL7L CL7R CLF SA1

L50X50X4 L50X50X4 FLAT 40X4 L65X65X5

1 1 6 2

5086 5086 480 206

15.3 15.3 0.6 1.0

15.3 15.3 3.7 2.0

CL8L CL8R CLF SA1

L50X50X4 L50X50X4 FLAT 40X4 L65X65X5

1 1 6 2

5706 5706 480 206

17.1 17.1 0.6 1.0

17.1 17.1 3.7 2.0

HL8L HL8R

L50X50X4 L50X50X4

1 1

4786 4786

14.4 14.4

14.4 14.4

CLF Pipe Angle

FLAT 40X4 NB50M L65X65X6

14 6 3

480 3000 600

0.6 15.3 3.5

8.7 91.8 10.4

4 4 4

4200 2878 550

23.9 10.9 19.6

95.8 43.7 78.5 5.0 12432.0

Marked

Section

Nos.

Length

Total Weight








26.

Foundation Template Main angle Corner angle Plate Nut Bolt


L75x5 L50x5 Pl 550x550x10 L/S Total Weight of Tower

Page 25 of 44

2.2.1 Antenna mounting structure for sector / cellular wireless antenna per set.

1.

L65X65X6

AC1

2

750

Total Weight 8.7

2.

ISMC75

AC2

2

320

4.6

3.

ISMC75

AC2A

2

320

4.6

4.

UCLAMP PLAIN ROD 16DIA

AC3

2

335

1.1

5.

PIPE NB65M

BP1

1

3000

19.3

6.

BOLT

M16X125

8

1.6

7.

NUT

M16

12

0.5

8.

PLAIN WASHER

M16

12

0.3

9.

SPRING WASHER

M16

12

Sl. No.

Description

Marked

Nos.

Length

0.1


40.6


243.6

2.2.2 For Microwave 0.6m diameter to 1.2m diameter per set. Sl. No.

Description

Marked

Nos.

Length

MW1

2

500

Total Weight 6.8

1.

L75X75X6

2.

ISMC75

MW2

2

420

6.0

3.

ISMC75

MW2A

2

420

6.0

4.


MW3

2

380

1.2

5.

PIPE NB80M

BP2

1

1000

8.4

6.

BOLT

M16X175

8

2.0

7.

NUT

M16

12

0.9

8.

PLAIN WASHER

M16

12

0.3

9.

SPRING WASHER

M16

12

0.1


31.6


189.6


Description

Marked

Nos.

Length

Total Weight

1.

L100X100X6

MW1

2

500

9.2

2.

ISMC100

MW2

2

420

8.0

3.

ISMC100

MW2A

2

420

8.0

4.


MW3

2

430

2.2

5.

PIPE NB100M

BP3

1

2000

24.4

6.

BOLT

M20X175

8

4.0

7.

NUT

M20

12

0.5

8.

PLAIN WASHER

M20

12

0.4


Page 26 of 44

Sl. No. 9.

Description SPRING WASHER

Marked

Nos.

M20

12

Total Weight

Length

0.2


56.9


341.4

2.2.4 Bill of Material for Foundation for 40m Ground Based Tower. L

B

H/D

Qty

Unit

m

m

m

1

6

6

3.3

118.8

m3

8" soling on foundation

1

6

6

0.2

7.2

m3

PCC 1:3:6

1

6

6

0.1

3.6

m3

On raft

1

6

6

0.5

18

m3

on pedestal shaft

4

0.6

0.6

2.7

3.888

m3

on tie beam

4

3.8

0.25

0.35

1.33

m3

23.218

m3

Sl. No

Item of work

Nos.

1.

Earth work on excavation

2. 3.

RCC 1:1.5:3 (M20) 4.


On raft

1

26

0.5

13

m2

on pedestal shaft

4

2.4

2.7

6.48

m2

on tie beam

4

3.8

0.7

2.66

m2

22.14

m2


148

6.25

@

1.58

1461.5

kg

chairs 12 DIA

25

1.6

@

0.88

35.2

kg


kg

main bar 25 DIA

16

4.2

@

3.9

262.08

kg

stirrups1 8 DIA

17

2.15

@

0.4

14.62

kg

stirrups2 8 DIA

17

1.52028

@

0.4

10.3379

kg

on tie beam

kg

main bar 16 DIA

4

5.6

@

1.58

35.392

kg

stirrups3 6 DIA

35

1.2

@

0.22

9.24

kg

1828.37

kg

84.782

m3

Total reinforcement work 7.

Earthwork on Backfilling


Page 27 of 44

2.3 Bill of Material for 50m Ground Based Tower. Sl. No.

1975 1975

Weight/ piece 11.3 11.3

Total Weight 45.0 67.5

6 4

1975 1975

11.3 11.3

67.5 45.0

L75x5

4

1975

11.3

45.0

4 20

L45x5 L45x5

40 8

1063 1068

3.6 3.6

144.6 29.0

3 5

L45x5 L45x5

40 40

815 871

2.8 3.0

110.8 118.5

19

L45x5

8

844

2.9

23.0

21 6

L45x5 L65x5

8 40

798 3332

2.7 16.3

21.7 653.1

18 18A

L65x5 L65x5

4 4

3276 3276

16.1 16.1

64.2 64.2

9 14

Fl 50x5 Fl 50x5

8 4

1113 1113

2.2 2.2

17.8 8.9

22

Fl 50x5

4

1136

2.3

9.1

2 8

271x201x6 271x328x6

8 32

271 271

2.6 4.2

20.5 134.0

16 12

271x328x6 L90x90x8

8 4

271 356

4.2 3.8

33.5 15.4

13

L90x90x10

4

356

4.8

19.1

10

PL 80x351x8

16

351

1.8

28.2

11

PL 50x150x2

16

150

0.1

1.9

7

L100x8

4

4623

55.9

223.8

15 17

L100x10 L100x10

4 4

4994 5050

74.4 75.2

297.6 301.0

23 23X

L75x5 L75x5

1 1

2223 2223

12.7 12.7

12.7 12.7

23A 23A-X

L75x5 L75x5

1 1

2223 2223

12.7 12.7

12.7 12.7

37

L65x5

1

2408

11.8

11.8

37-X 37A

L65x5 L65x5

1 2

2408 2408

11.8 11.8

11.8 23.6

Minor Bracing

27 32

L45x5 L45x5

8 8

1110 1211

3.8 4.1

30.2 32.9

Redundant

26

L45x5

8

827

2.8

22.5

28 31

L45x5 L45x5

8 8

843 877

2.9 3.0

22.9 23.9

Description

Marked

Section

Nos.

Length

1A 1B

L75x5 L75x5

4 6

1B-X 1C

L75x5 L75x5

1C-X Minor Bracing Redundant

Horizontal

1.

Panel 13 to18

Diagonal

Railing flat

Gusset Plate


2.

Panel 10 to 12

Horizontal


Page 28 of 44

Sl. No.

889

Weight/ piece 3.0

Total Weight 24.2

784 1606

2.7 5.5

21.3 43.7

8 8

1743 739

5.9 2.5

47.4 20.1

L45x5

4

952

3.2

12.9

25 25A

L65x5 L65x5

4 4

3385 3385

16.6 16.6

66.3 66.3

34 34A

L65x5 L65x5

4 4

3576 3576

17.5 17.5

70.1 70.1

40

L65x5

4

4496

22.0

88.1

40A 24

L65x5 PL161x436x8

4 4

4496 436

22.0 4.4

88.1 17.6

24X 29

PL161x436x8 PL155x314x8

4 8

436 314

4.4 3.1

17.6 24.5

Splice Cleat Angle

38 36

PL215x288x8 L110x110x10

8 4

215 470

3.9 7.8

31.1 31.2

Splice Cleat Plate

35

PL120x470x8

8

120

3.5

28.3

Leg

30 39

L130x130x12 L130x130x12

4 4

5175 3650

121.6 85.8

486.5 343.1

Horizontal

47 47-X

L75x5 L75x5

1 1

2688 2688

15.3 15.3

15.3 15.3

47A

L75x5

1

2688

15.3

15.3

47A-X 58

L75x5 L65x5

1 1

2688 2981

15.3 14.6

15.3 14.6

58-X 58A

L65x5 L65x5

1 2

2981 2981

14.6 14.6

14.6 29.2

67 67-X

L75x5 L75x5

1 1

3315 3315

18.9 18.9

18.9 18.9

67A

L75x5

1

3315

18.9

18.9

67A-X 77

L75x5 L65x5

1 1

3315 3860

18.9 18.9

18.9 18.9

77-X 77A

L65x5 L65x5

1 2

3860 3860

18.9 18.9

18.9 37.8

50

L45x5

8

890

3.0

24.2

51 52

L45x5 L45x5

8 8

1630 1741

5.5 5.9

44.3 47.4

53 54

L45x5 L45x5

8 4

837 1071

2.8 3.6

22.8 14.6

61 62

L45x5 L45x5

8 8

983 1841

3.3 6.3

26.7 50.1

Description

Diagonal

3.

Panel 6 to 9

Gusset Plate

Redundant


Marked

Section

Nos.

Length

33

L45x5

8

41 42

L45x5 L45x5

8 8

43 44

L45x5 L45x5

45

Page 29 of 44

Sl. No.

Description

Diagonal

Gusset Plate

Batten Plate Splice Cleat Angle

Splice Cleat Plate

Splice Packing Plate


1995

Weight/ piece 6.8

Total Weight 54.3

921 1179

3.1 4.0

25.1 16.0

4 8

1307 1094

4.4 3.7

17.8 29.8

L50x5

8

2004

7.6

60.9

73 74

L50x5 L45x5

8 8

2196 998

8.3 3.4

66.8 27.1

75 88

L45x5 L45x5

4 4

1299 1442

4.4 4.9

17.7 19.6

89

L45x5

8

1161

3.9

31.6

90 91

L50x5 L50x5

8 8

2047 2162

7.8 8.2

62.2 65.7

92 93

L45x5 L45x5

8 4

1088 1434

3.7 4.9

29.6 19.5

49 49A

L65x5 L65x5

4 4

4685 4685

23.0 23.0

91.8 91.8

60

L65x5

4

5269

25.8

103.3

60A 69

L65x5 L75x6

4 4

5269 5814

25.8 39.5

103.3 158.1

69A 94

L75x6 L75x6

4 4

5814 5998

39.5 40.8

158.1 163.1

94A

L75x6

4

5998

40.8

163.1

48 59

PL225x240x8 PL225x235x8

8 8

225 225

3.4 3.3

27.1 26.6

68 78

PL225x255x8 PL205x401x8

8 8

225 205

3.6 5.2

28.8 41.3

79 56

PL272x100x12 L130x130x12

16 8

272 530

2.6 12.5

41.0 99.6

83

L130x130x12

4

470

11.0

44.2

84 85

L130x130x12 L130x130x12

4 8

470 470

11.0 11.0

44.2 88.4

97 98

L130x130x12 L130x130x12

8 8

470 470

11.0 11.0

88.4 88.4

55

PL140x530x10

16

140

5.8

93.2

82 86

Pl120x470x12 Pl272x470x12

8 4

120 272

5.3 12.0

42.5 48.2

95 96

Pl272x470x12 Pl120x470x12

4 8

272 120

12.0 5.3

48.2 42.5

57 87

Pl110x260x4 Pl90x230x4

8 8

110 90

0.9 0.6

7.2 5.2

Marked

Section

Nos.

Length

63

L45x5

8

64 65

L45x5 L45x5

8 4

70 71

L45x5 L45x5

72

Page 30 of 44

Sl. No.

3750

Weight/ piece 102.4

Total Weight 409.5

3950 4450

141.4 159.3

565.6 637.2

4 4

4690 4450

110.2 104.6

440.9 418.3

L75x5

2

4315

24.6

49.2

594A 594A-X

L75x5 L75x5

1 1

4315 4315

24.6 24.6

24.6 24.6

115 115A

L75x5 L75x5

2 2

4930 4930

28.1 28.1

56.2 56.2

105

L45x5

4

1636

5.6

22.2

106 107

L45x5 L65x5

8 8

1327 2244

4.5 11.0

36.1 88.0

108 109

L50x5 L45x5

8 8

2421 1212

9.2 4.1

73.6 33.0

110 123

L45x5 L45x5

4 4

1601 1847

5.4 6.3

21.8 25.1

124

L50x5

8

1483

5.6

45.1

125 126

L65x5 L50x5

8 8

2353 2434

11.5 9.2

92.2 74.0

127 128

L45x5 L45x5

8 4

1387 1831

4.7 6.2

37.7 24.9

99

L65x5

4

2899

14.2

56.8

99A 104

L65x5 L65x5

4 4

2899 3850

14.2 18.9

56.8 75.5

104A 119

L65x5 L75x5

4 4

3850 3105

18.9 17.7

75.5 70.8

119A 120

L75x5 L75x5

4 4

3105 4150

17.7 23.7

70.8 94.6

120A

L75x5

4

4150

23.7

94.6

Diagonal Cleat angle

111 122

L65x5 L65x5

8 8

256 286

1.3 1.4

10.0 11.2

Diagonal Cleat Plate

112 121

PL60x231x6 PL60x256x6

16 16

60 60

0.7 0.7

10.4 11.6

Gusset Plate

102

Pl201x473x8

4

201

6.0

23.9

102X 117

Pl201x473x8 PL145x175x6

4 8

201 145

6.0 1.2

23.9 9.6

116 118

PL145x374x8 PL145x170x6

8 8

145 145

3.4 1.5

27.2 12.4

G50 103

PL145x168x8 PL100x272x12

8 48

145 100

1.5 2.6

12.2 123.0

Description Leg

Horizontal

4.

Panel 4 T0 5

Redundant

Diagonal

Batten Plate


Marked

Section

Nos.

Length

46 66 76

L150x150x12

4

L150x150x16 L150x150x16

4 4

80 81

L130x130x12 L130x130x12

594

Page 31 of 44

Sl. No.

Total Weight 176.7

470 120

11.0 5.3

176.7 85.0

8 4

272 5059

12.0 118.9

96.3 475.5

L130x130x12

4

5059

118.9

475.5

129 130

L130x130x12 L130x130x12

4 4

4950 4950

116.3 116.3

465.3 465.3

Stump

S50 S51

L130x130x12 L130x130x12

4 4

903.5 913.5

21.2 21.5

84.9 85.9

Base Plate

B50

PL550x550x32

4

550

76.0

304.0

LS1

Rod 32 L65x5

48 2

1400 2217

8.8 10.9

423.4 21.7

LS1X LS2

L65x5 L65x5

2 3

2217 2217

10.9 10.9

21.7 32.6

LS2X LS3

L65x5 L65x5

3 1

2217 2219

10.9 10.9

32.6 10.9

LS4

L65x5

1

2219

10.9

10.9

LS5 LS5X

L65x5 L65x5

1 1

2666 2666

13.1 13.1

13.1 13.1

LS6 LS7

L75x5 L75x5

1 1

2975 2975

17.0 17.0

17.0 17.0

LS8

L65x5

1

3278

16.1

16.1

LS8X LS9

L65x5 L75x5

1 1

3278 3608

16.1 20.6

16.1 20.6

LS10 LS11

L75x5 L75x5

1 1

3608 3957

20.6 22.6

20.6 22.6

LS11X LS12

L75x5 L75x6

1 1

3957 4334

22.6 29.5

22.6 29.5

LS12A

L75x6

1

4334

29.5

29.5

LS13 LS13X

L75x6 L75x6

1 1

5021 5021

34.1 34.1

34.1 34.1

P1 P2

Fl 50x4 L45x5

12 12

542 739

0.9 2.5

10.4 30.2

P3

Mesh 2217x844

6

2217

20.6

123.5

P4 P5

Fl 50x4 Fl 50x4

6 12

1825 256

2.9 0.4

17.5 4.9

P6 P7

Fl 50x4 Mesh 2219x845

6 1

2217 2219

3.5 20.6

21.3 20.6

P8 P9

Fl 50x4 Fl 50x4

1 2

2219 186

3.6 0.3

3.6 0.6

Marked

Section

Splice Cleat Angle

132

Splice Cleat Plate

134 131

Leg

Foundation Bolt Ladder support

Ladder Support

5.

6.

470

Weight/ piece 11.0

Description

7.

Platform

Platform


Nos.

Length

L130x130x12

16

L130x130x12 PL120x470x12

16 16

133 113

PL272x470x12 L130x130x12

114

Page 32 of 44

Sl. No.

Description


591

Weight/ piece 0.9

Total Weight 1.9

789 789

2.7 2.7

2.7 2.7

1 2

1923 720

3.1 7.7

3.1 15.4

Fl 50x4

4

720

1.2

4.6

P16 P17

Fl 50x4 L45x5

4 2

874 720

1.4 2.4

5.6 4.9

P18 P19

L65x5 L65x5

2 2

720 720

3.5 3.5

7.1 7.1

P20

L75X5

1

2975

17.0

17.0

P21 P22

PL125X170X6 L65x5

8 4

125 1197

1.0 5.9

8.0 23.5

P22X P23

L65x5 Fl 50x4

4 2

1197 794

5.9 1.3

23.5 2.5

P24 P25

L50X5 PL125X170X6

2 4

794 125

3.0 1.0

6.0 4.0

P26

L65x5

2

1193

5.8

11.7

P26X P27

L65x5 Fl 50x4

2 4

1193 729

5.8 1.2

11.7 4.7

P28 P29

L50X5 Fl 50x4

4 2

729 324

2.8 0.5

11.1 1.0

P30

L50X5

2

324

1.2

2.5

P31 P32

L75X6 Mesh 720x974

1 1

3608 720

24.5 7.7

24.5 7.7

P33 P34

L75X6 L65x5

1 1

4334 720

29.5 3.5

29.5 3.5

P35 P36

L45x5 L65x5

1 1

720 720

2.4 3.5

2.4 3.5

P37

Fl 50x4

2

720

1.2

2.3

P38 P39

Fl 50x4 L65x5

2 2

874 1197

1.4 5.9

2.8 11.7

P39X P40

L65x5 Fl 50x4

2 1

1197 794

5.9 1.3

11.7 1.3

P41

L50X5

1

794

2.7

2.7

P42 P43

PL125X170X6 L65x5

2 1

125 1193

1.0 5.8

2.0 5.8

P43X P44

L65x5 Fl 50x4

1 2

1193 729

5.8 1.2

5.8 2.3

P45 P46

L50X5 PL125X170X6

2 4

729 125

2.8 1.0

5.5 4.0

Marked

Section

Nos.

Length

P10

Fl 50x4

2

P11 P12

L45x5 L45x5

1 1

P13 P14

Fl 50x4 Mesh 720x974

P15

Page 33 of 44

Sl. No.

Description

Horizontal diagonal

8.

324

Weight/ piece 1.2

Total Weight 1.2

324 2519

0.5 14.6

0.5 14.6

1 1

2519 2519

14.6 14.6

14.6 14.6

L65x6

1

2519

14.6

14.6

HD2 HD2x

L80x6 L80x6

1 1

3046 3046

22.2 22.2

22.2 22.2

HD2A HD2A-x

L80x6 L80x6

1 1

3046 3046

22.2 22.2

22.2 22.2

L1L L1R

L50X50X4 L50X50X4

1 1

2697 2697

8.1 8.1

8.1 8.1

ROD16 CR1

R16 DIA FLAT 40X4

9 3

510 2024

0.8 2.6

7.3 7.9

CF1

FLAT 40X4

3

2419

3.1

9.4

L2L

L50X50X4

1

3894

11.7

11.7

L2R ROD16

L50X50X4 R16 DIA

1 13

3894 510

11.7 0.8

11.7 10.6

CR1 CR2

FLAT 40X4 FLAT 40X4

3 1

2024 1032

2.6 1.3

7.9 1.3

CF2

FLAT 40X4

2

3788

4.9

9.8

CF2A SA1

FLAT 40X4 L65X65X5

1 2

2615 206

3.4 1.0

3.4 2.0

SF1

FLAT 40X4

6

166

0.2

1.3

L3L L3R

L50X50X4 L50X50X4

1 1

5086 5086

15.3 15.3

15.3 15.3

ROD16

R16 DIA

17

510

0.8

13.9

CR1 CR2

FLAT 40X4 FLAT 40X4

3 2

2024 1032

2.6 1.3

7.9 2.7

CF3 CF3A

FLAT 40X4 FLAT 40X4

2 1

5192 2040

6.7 2.7

13.5 2.7

SA1

L65X65X5

2

206

1.0

2.0

SF1

FLAT 40X4

4

166

0.2

0.9

L4L L4R

L50X50X4 L50X50X4

1 1

5111 5111

15.3 15.3

15.3 15.3

ROD16 CR1

R16 DIA FLAT 40X4

17 4

510 2024

0.8 2.6

13.9 10.5

Marked

Section

Nos.

Length

P47

L50X5

1

P48 HD1

Fl 50x4 L65x6

1 1

HD1x HD1A

L65x6 L65x6

HD1A-x

Ladder L1

9.

Ladder L2

10.

Ladder L3

11.

Ladder L4 12.


Page 34 of 44

Sl. No.

Description

1032

Weight/ piece 1.3

Total Weight 1.3

5111 3527

6.6 4.6

13.3 4.6

2 4

206 166

1.0 0.0

2.0

L50X50X4 L50X50X4

1 1

4786 4786

14.4 14.4

14.4 14.4

ROD16 CR1

R16 DIA FLAT 40X4

16 3

510 2024

0.8 2.6

13.1 7.9

CR2

FLAT 40X4

2

1032

1.3

2.7

CF5 CF5A

FLAT 40X4 FLAT 40X4

2 1

4786 2507

6.2 3.3

12.4 3.3

SA1 SF1

L65X65X5 FLAT 40X4

2 6

206 166

1.0 0.2

2.0 1.3

L6L

L50X50X4

1

5111

15.3

15.3

L6R

L50X50X4

1

5111

15.3

15.3

ROD16 CR1

R16 DIA FLAT 40X4

17 5

510 2024

0.8 2.6

13.9 13.2

CF6 CF6A

FLAT 40X4 FLAT 40X4

2 1

5111 4435

6.6 5.8

13.3 5.8

SA1

L65X65X5

2

206

1.0

2.0

SF1

FLAT 40X4

4

166

0.2

0.9

L7L L7R

L50X50X4 L50X50X4

1 1

5086 5086

15.3 15.3

15.3 15.3

ROD16 CR1

R16 DIA FLAT 40X4

17 3

510 2024

0.8 2.6

13.9 7.9

CR2

FLAT 40X4

2

1032

1.3

2.7

CF7 CF7A

FLAT 40X4 FLAT 40X4

2 1

5086 2526

6.6 3.3

13.2 3.3

SA1 SF1

L65X65X5 FLAT 40X4

2 4

206 166

1.0 0.2

2.0 0.9

L8L L8R

L50X50X4 L50X50X4

1 1

4786 4786

14.4 14.4

14.4 14.4

ROD16 CR1

R16 DIA FLAT 40X4

16 4

510 2024

0.8 2.6

13.1 10.5

CR2 CF8

FLAT 40X4 FLAT 40X4

1 2

1032 4786

1.3 6.2

1.3 12.4

Marked

Section

Nos.

Length

CR2 CF4 CF4A

FLAT 40X4

1

FLAT 40X4 FLAT 40X4

2 1

SA1 SF1

L65X65X5 FLAT 40X4

L5L L5R

Ladder L5

13.

Ladder L6

14.

Ladder L7

15.

Ladder L8

16.


Page 35 of 44

Sl. No.

Description

3508

Weight/ piece 4.6

Total Weight 4.6

206 166

1.0 0.2

2.0 0.9

1

5086

15.3

15.3

1

5086

15.3

15.3

R16 DIA FLAT 40X4

17 3

510 2024

0.8 2.6

13.9 7.9

CR2 CF9

FLAT 40X4 FLAT 40X4

2 2

1032 5086

1.3 6.6

2.7 13.2

CF9A

FLAT 40X4

1

3409

4.4

4.4

SA1 SF1

L65X65X5 FLAT 40X4

2 4

206 166

1.0 0.2

2.0 0.9

L510L

L50X50X4

1

5823

17.5

17.5

L510R ROD16

L50X50X4 R16 DIA

1 18

5823 510

17.5 0.8

17.5 14.7

CR1

FLAT 40X4

4

2024

2.6

10.5

CF510 SA1

FLAT 40X4 L65X65X5

3 2

3333 206

4.3 1.0

13.0 2.0

SF1

FLAT 40X4

6

166

0.2

1.3

CL1L

L50X50X4

1

2697

8.1

8.1

CL1R CLF

L50X50X4 FLAT 40X4

1 4

2697 480

8.1 0.6

8.1 2.5

CL2L

L50X50X4

1

3894

14.8

14.8

CL2R CLF

L50X50X4 FLAT 40X4

1 4

3894 480

14.8 0.6

14.8 2.5

SA1

L65X65X5

2

206

0.0

CL3L

L50X50X4

1

5086

15.3

15.3

CL3R CLF

L50X50X4 FLAT 40X4

1 6

5086 480

15.3 0.6

15.3 3.7

SA1

L65X65X5

2

206

1.0

2.0

CL4L

L50X50X4

1

5111

15.3

15.3

CL4R CLF

L50X50X4 FLAT 40X4

1 7

5111 480

15.3 0.6

15.3 4.4

SA1

L65X65X5

2

206

1.0

2.0

Marked

Section

Nos.

Length

CF8A SA1 SF1

FLAT 40X4

1

L65X65X5 FLAT 40X4

2 4

L9L

L50X50X4

L9R

L50X50X4

ROD16 CR1

Ladder L9

17.

Ladder L510

18.





Cable Ladder CL5


Page 36 of 44

Sl. No.

4786

Weight/ piece 14.4

Total Weight 14.4

4786 480

14.4 0.6

14.4 3.1

2

206

1.0

2.0

L50X50X4

1

5111

15.3

15.3

CL6R CLF

L50X50X4 FLAT 40X4

1 7

5111 480

15.3 0.6

15.3 4.4

SA1

L65X65X5

2

206

1.0

2.0

CL7L

L50X50X4

1

5086

15.3

15.3

CL7R CLF

L50X50X4 FLAT 40X4

1 6

5086 480

15.3 0.6

15.3 3.7

SA1

L65X65X5

2

206

1.0

2.0

CL8L CL8R

L50X50X4 L50X50X4

1 1

4786 4786

14.4 14.4

14.4 14.4

CLF

FLAT 40X4

6

480

0.6

3.7

SA1

L65X65X5

2

206

1.0

2.0

CL9L CL9R

L50X50X4 L50X50X4

1 1

5086 5086

15.3 15.3

15.3 15.3

CLF

FLAT 40X4

6

480

0.6

3.7

SA1

L65X65X5

2

206

1.0

2.0

CL10L CL10R

L50X50X4 L50X50X4

1 1

5823 5823

17.5 17.5

17.5 17.5

CLF SA1

FLAT 40X4 L65X65X5

6 2

480 206

0.6 1.0

3.7 2.0

HL10L HL10R

L50X50X4 L50X50X4

2 2

5111 5111

15.3 15.3

30.7 30.7

CLF

FLAT 40X4

14

480

0.6

8.7

Pipe Angle

NB50M L65X65X5

6 3

3000 600

15.3 2.9

91.8 8.8

Foundation Template Main angle

L75x5

4

5538

31.6

126.3

Corner angle

L50x5

4

2878

10.9

43.7

Plate Nut Bolt

Pl 550x550x10 L/S

4

550

23.7

95.0 5.0

Description

23.

Marked

Section

Nos.

Length

CL5L CL5R CLF

L50X50X4

1

L50X50X4 FLAT 40X4

1 5

SA1

L65X65X5

CL6L







30.

Total Weight of Tower


17476.9

Page 37 of 44

2.3.1 Antenna mounting structure for sector / cellular wireless antenna per set. Sl. No.

Description

Marked

Nos.

Length

Total weight

1.

L65X65X6

AC1

2

750

8.7

2.

ISMC75

AC2

2

320

4.6

3.

ISMC75

AC2A

2

320

4.6

4.


AC3

2

335

1.1

5.

PIPE NB65M

BP1

1

3000

19.3

6.

BOLT

M16X125

8

1.6

7.

NUT

M16

12

0.5

8.

PLAIN WASHER

M16

12

0.3

9.

SPRING WASHER

M16 Total Weight of Each

12

0.1 40.6 243.6



Description

Marked

Nos.

Length

Total weight

1

L75X75X6

MW1

2

500

6.8

2.

ISMC75

MW2

2

420

6.0

3.

ISMC75

MW2A

2

420

6.0

4.


MW3

2

380

1.2

5.

PIPE NB80M

BP2

1

1000

8.4

6.

BOLT

M16X175

8

2.0

7.

NUT

M16

12

0.9

8.

PLAIN WASHER

M16

12

0.3

9.

SPRING WASHER

M16

12

0.1


31.6


189.6


Description

Marked

Nos.

Length

Total weight

1

L100X100X6

MW1

2

500

9.2

2.

ISMC100

MW2

2

420

8.0

3.

ISMC100

MW2A

2

420

8.0

4.


MW3

2

430

2.2

5.

PIPE NB100M

BP3

1

2000

24.4

6.

BOLT

M20X175

8


4.0

Page 38 of 44

Sl. No.

Description

Marked

Nos.

Total weight

Length

7.

NUT

M20

12

0.5

8.

PLAIN WASHER

M20

12

0.4

9.

SPRING WASHER

M20

12

0.2


56.9


341.4

2.3.4 Bill of Material for Foundation for 50m Ground Based Tower. Sl. No. 1. 2. 3.

L

B

H/D

Qty

Unit

m

m

m

1

7.7

7.7

3.3

195.657

m3

1

7.7

7.7

0.2

11.858

m3

1

7.7

7.7

0.1

5.929

m3

On raft

1

7.7

7.7

0.6

35.574

m3

on pedestal shaft

4

0.65

0.65

2.6

4.394

m3

on tie beam

4

5.138

0.25

0.4

2.0552

m3

42.0232

m3

Item of work

Nos.

Earth work on excavation 8" soling on foundation PCC 1:3:6 RCC 1:1.5:3 (M20)

4.


On raft

1

32.8

0.6

19.68

m2

on pedestal shaft

4

2.6

2.6

6.76

m2

on tie beam

4

5.138

0.8

4.1104

m2

30.5504

m2


200

7.95

@

1.58

2512.2

kg

chairs 12 DIA

49

1.8

@

0.88

77.616

kg


kg

main bar 32 DIA

12

4.5

@

6.3

340.2

kg

stirrups1 8 DIA

17

2.35

@

0.4

15.98

kg

stirrups2 8 DIA

17

1.661701

@

0.4

11.29957

kg

on tie beam

7.

kg

main bar 16 DIA

4

7.088

@

1.58

44.79616

kg

stirrups3 6 DIA

42

1.3

@

0.22

12.012

kg

3014.104

kg

135.8468

m3

Total reinforcement work Earthwork on Backfilling


Page 39 of 44

Chapter-3 Specifications for Earthing System & Lightening Arrestor Plate Earth (Layout & interconnection)

(Diagram not to Scale)

Figure – 1 Notes: a. GI Plates and Strips are connected by GI nuts and Bolts to prevent ingress of moisture and soil. The joint is made watertight by covering with bitumen. b. The bends in GI strips should not be sharp but within radius of 1 meter as shown in figure. c. After the plate earthing electrode is placed in position and all the interconnection made, the pit shall be filled up with fine ash and/or finely sieved good quality soil, which shall be rammed in layers so that it is compact and cohesive. d. Chemical treatment of earth using salts etc. are not recommended as the chemical treatment does not last long and needs to be checked periodically.


Page 40 of 44

e. Earth conductor should not be encircled with metal clamps while taking it along the wall. This is essential to eliminate the high inductive reactance that will impede the flow of surge current along the conductor in case of lightning. f.

Earthing conductor shall not pass through any metallic conduit or pipe as this will increase surge impedance.

TOWER PLATEFORM

FEEDER GROUNDING CARD

GROUNDING WIRE FEEDER

LIGHTENING ARRESTER MOUNT GROUNDING WIRE

OUTDOOR GROUNDING BUS BAR

BTS

SMPS

INDOOR GROUNDING BUS BAR

RING EARTH TO PLATE EARTH

GROUNDING STRIP 50 mmX3 mm

Figure – 2 Earthing arrangement using outdoor Grounding Bus bar And indoor Grounding Bus bar


Page 41 of 44

3.1

The bidder shall provide two numbers of G I plate earth (one for DG set and other for equipment) located at least 3 meter apart and should be connected by 50mmX3mm G I strip for maintaining common potential (Figure-2). Each plate earth system shall have ohmic value ≤2Ω.

3.2

Each earth plate (Figure-1) shall include excavation of pit of size 1500x1500x2000mm depth and placing four numbers of G I plates of size 300x300x6 mm thick vertically at diagonally opposite ends in the excavated pit and inter connecting the plates with 4 Nos. of 50x3mm G I strips with 2 Nos. of G I bolts and nuts of 10mm diameter at each connection and covering the joints with bitumen, placing G I pipe of 50mm internal diameter (B Class) and 2000mm length at the center of the plate grid for watering and filling the pit with fine ash and / or finally sieved good quality soil including ramming in 20 cm layers etc complete and cover the pit with 750x750x50mm thick precast reinforced cement concrete slab having 100mm diameter hole at the centre to pass the GI pipe and construct a chamber of internal size not less than 280x280x250mm with half brick wall including fixing CI manhole cover of size 300x300mm of weight not less than 7.20 Kg. (cover & frame) and plastering the chamber on all sides with cement mortar 1:4 of 12mm thick (1 cement : 4 fine sand) and including disposal of surplus excavated earth if any.

3.3

The bidder shall terminate separate earth strips from the two earth pits up to indoor and outdoor grounding bus bar mounted on the wall of building/shelter (i.e. one earth strip from first pit to indoor grounding bus bar and another from second earth pit to outdoor grounding bus bar) as per figure-2.

3.4

The bidder shall provide ring earth by providing GI Strip of size 50mm x 3 mm around the tower in the trench and minimum one meter away from the tower by digging a trench 50 cm. wide and 150 cm. deep. The depth should not be less than 90 cm, in any case (for rocky soil). To get the resistance of 2 ohms if any extra treatment of the soil is required the same has to be done by the supplier without any extra cost.

3.5

The bidder shall provide four G I strips of size 50x3 mm, one end connected to the legs at the bottom of tower with GI bolts and nuts [with lead sheath in between] and the other end shall be connected to the ring earth with G I bolts and nuts [with lead sheath in between] without any sharp bends using necessary clamps and screws.

3.6

The bidder shall provide GI bus bar of 50 x 3 mm or 50sq. mm Copper cable (PVC insulated) connected to the lightning conductor and to the ring earth with 2 Nos. of 10 mm diameter GI nuts & bolts [with lead sheath in between] at each connection. The bus bar shall be drawn through heat shrink sleeve and shall be shrunk properly. The bus bar/cable shall be clamped to the tower walls at uniform interval of 1.5 M. using proper clamps and insulators such that the bus bar shall be well insulated from the tower/building walls completely. ***


Page 42 of 44

Chapter-4 Technical Specifications for Aviation Warning Light 1. No. of LEDS: at least 170. 2. Maximum forward current: 45 mA 3. Input Voltage Variability: Shall withstand fluctuation of ±25% 4. Power Consumption: 5 W to 10 W (48V DC Supply) 5. PIV protection: LEDs internally protected against rev. voltage up to 1 KV 6. Insulation Resistance: >200 MΩ 7. Dielectric Strength: ≥2.5 KV 8. Earthing: Terminal shall be provided inside body 9. Body Material: Aluminum body with powder coating 10. Dome Material: Polycarbonate unbreakable red dome 11. Cable entry: PG11 cable gland 12. Photo sensor: Inbuilt photo sensor for automatic operation 13. Illuminance: ≥3000 lux 14. No. of Circuits: Multiple Circuits provided for maximum reliability. 15. Type of LEDS: Ultra high glow LEDs 16. Warranty: 36 months

Note: Screened PVC insulated twin copper wire of size 3/22 IS Mark shall be provided by Supplier. The length of Wire may vary according the height of the tower.


Page 43 of 44

Chapter-5 Key Diagrams


Page 44 of 44

Technical Specification of Ground Based Tower of 30, 40

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