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35kV Double Circuit Electricity Power Siingle Pole Tower Transmission Line

2024-2-27 13:36:07

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Introduction
35kV Double Circuit Electricity Power Siingle Pole Tower Transmission Line 

In power transmission line project, double circuit transmission line steel tower often used. For a double-circuit transmission line, which has two circuits, both tubular and lattice steel towers can be designed so as to support two circuits of electrical current. Double-circuit transmission towers hold the different conductors stacked atop one another, while in single-circuit towers the conductors are lined up horizontally.

ZHM provide 35KV double circuit tangent transmission lines tower for our esteemed clients. The Tower Line work involves Survey, check survey, and span calculations essential for tower extensions. Moreover, Tower designs and prototype approval is done. 35KV power transmission line often use in urban power grid, even rural areas power grid, which belong to middle-voltage power transmission line. ZHM are experienced enough in design, fabrication, and installation cost effective range of 35KV power transmission line tower. Towers are processed through the facility by Caustic Cleaning, Pickling, and then Fluxing. High resistive galvanized steel is used in our manufacturing process to ensure high resistivity against heat, humidity, moisture, water etc. These strict procedures insure years of maintenance free towers. Moreover, ZHM ensure 35KV towers are delivers in varied design and technical specifications depending up on the nature of the applications in which these have to be used.

ZHM is one of the few manufactures who assemble a face of every tower section. This attention to quality may not be the cheapest process but it does insure every tower meets our high standards of quality. And it helps to reduce on-site construction cost due to mismatched assemblies.

ZHM 35KV power transmission line Towers systems can accommodate a variety of cross-arm. ZHM also offers a wide variety of accessories and mounts.

Availability size: Based on the customer's requirements.
Material: Chinese material or as per clients requirement
Package: Both parties discuss before delivery
Terms of Payment: L/C, T/T
Minimum Order Quantity: 1 ton
Port of Loading: Qingdao Port
Lead Time: One month or based on the customer's needs
Performance Standard
Besides conform to the drawing and design, the materials and fabrication of tower components shall conform to the Chinese Standard or other standard which clients can accept.
Besides conform to the drawing and design, the materials and fabrication of tower components shall conform to the following standards (Chinese Standard or other standard):
1. GB/T2694-2003 Transmission line tower - - Technical requirements for manufacturing
2. JGJ81-2002: Technical specification for welding for steel structure of building
3. GB9787-88: Measuring and allowable tolerance for hot-rolled equal angle
4. GB709-88: Measuring and allowable tolerance for hot-rolled plate and strip
5. GB/T699-1999: Quality Carbon Structural Steel
6. GB/T1591-1994: Low alloy high strength structural Steel
7. GB700-88: Carbon Structural Steel
8. GB222-84: Method of sampling steel for determination of chemical composition and permissible variations
9. GB/T228-2002: Method for Tensile testing of metals
10 GB/T232-1999: Method for Bending test of metals
11 GB/T5117-1995: Carbon Welding Rod
12 GB/T5118-1995: Low Alloy Welding Rod
13 GB/T8220-1995: Welding wires for gas shielding arc welding of carbon and low alloy steels
14 GB/T10045-2001: Carbon steel flux cored electrodes for arc welding
15 JB/T7949-1999: Weld outer dimensions for steel construction
16 GB50205-2001: Test Standard for Acceptance of Steel Structure
17 GB/T470-1997: Zinc Ingot
18 GB3098.1-2000: Mechanical properties of fasteners-Part 1: Bolts, screws and studs
19 GB3098.2-2000: Mechanical properties of fasteners-Part2: Nuts, and thread
20 GB3098.3-2000: Mechanical properties of fasteners-Part3: Fastening screw
21 GB/T5780-2000: Helical Bolts Grade C
22 GB/T41-2000: Helical Nuts Grade C
23 GB/T90-2002: Flat Washer Grade C

24 GB/T13912-2002: Metal Coating, Technical Requirement

25. BS/EN 1461: Hot-dipped galvanization 


We also adopt British, American and other international standard which client can accept.


Name Straight Line Pole Tension pole Corner Hole
30°    60° 90°
Type 35SZG-12 35SZG-21 35SZG-21 35SZG-21 35SZG-12 35SZG-21 35SZG-12 35SZG-21 35SZG-12 35SZG-21
Nominal height 12 21 12 21 12 21 12 21 12 21
Applicable
Conditions
Conduct
Cable
Type LGJ-185 LGJ-185 LGJ-185 LGJ-185 LGJ-185 LGJ-185 LGJ-185 LGJ-185 LGJ-185 LGJ-185
Safety Factor 6 6 6 6 6 6 6 6 6
Grounding
Cable
Type GJ-35 GJ-35 GJ-35 GJ-35 GJ-35 GJ-35 GJ-35 GJ-35 GJ-35 GJ-35
Safety Factor 8 8 8 8 8 8 8 8 8
Horizontal Span(m) 120 120 120 120 120 120 120 120 120 120
Vertical Span(m) 150 150 150 150 150 150 150 150 150 150
Maximum Wind Speed(m/s) 30 30 30 30 30 30 30 30 30 30
Maximum Covered Ice(m/s) 10 10 10 10 10 10 10 10 10 10
Pole Type Data Total Height(m) 20 29 20 29 20 29 20 29 20 29
Pole Top
(side to side mm)
250 250 260 260 280 260 320 320 360 360
Pole Bottom
(side to side mm)
450 620 620 720 850 800 840 960 920 1050
Cross Arm Bracket Distance H1(mm) 1500 1500 1500 1500 2500 2500 2500 2500 2500 2500
H2(mm) 2200 2200 2200 2200 2200 2200 2200 2200 2200 2200
H3(mm) 2200 2200 2200 2200 2200 2200 2200 2200 2200 2200
Cross Arm Bracket Length L1(mm) 500 500 500 500 700 700 900 900 1000 1000
L2(mm) 700 700 900 900 1000 1000
L3(mm) 1500 1500 1500 1500 1800 1800 2100 2100 2400 2400
L4(mm) 1500 1500 1400 1400 1200 1200
L5(mm) 1700 1700 1700 1700 2000 2000 200 2300 2600 2600
L6(mm) 1700 1700 1600 1600 1400 1400
Anchor Bolts 12-M27 12-M27 12-M30 12-M30 12-M36 12-M36 16-M39 16-M39 16-M42 16-M42

























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