南方双彩网

电线电缆厂家

categories of 南方双彩网

Product Categories

contact us

Company: Henan Lubao Special Cable Co., Ltd.

Contact: Manager Su

Mobile: 13838110230

Email: 349614665@qq.com

WeChat: 13838110230

Website: herzheart.com

Address: No. 13 Workshop B, Tiantan Venture Park, Huling Industrial Gathering District, Jiyuan City, Henan Province


Matters needing attention in cable installation

Your current location : 南方双彩网 >> News >> Industry News

Matters needing attention in cable installation

作者: Release Date: 2018-06-25 Author: Click:

Matters needing attention in cable installation:


1. Mining cables should be kept at a distance of 2m when installed in parallel with the heat pipes, and 0.5m should be kept when crossing.


2. When installing cables in parallel or crosswise with other pipes, keep a distance of 0.5m.


3. When the cable is buried directly, the depth of 1-35kV cable should not be less than 0.7m.


4. When the cables of 10kV and below are installed in parallel, the clear distance between each other is not less than 0.1m, 10-35kV is not less than 0.25m, and the distance when crossing is not less than 0.5m.


5, the minimum bending radius of the cable, multi-core cable must not be less than 15D, single-core cable must not be less than 20D (D is the cable outer diameter).


6, 6kv and above cable connectors.

A. When installing the cable terminal head, the semi-conductive shielding layer must be stripped, and the insulation must not be damaged during operation. Henan wire and cable should avoid knife marks and unevenness, and if necessary, be sanded with sandpaper; the shield end should be flat, and The graphite layer (carbon particles) must be removed.

B. The copper shield and steel armor of plastic insulated cable ends must be well grounded. This principle should also be followed for short lines to avoid induced electromotive force at the ends of steel armor during three-phase unbalanced operation, and even "fire" and combustion sheaths. And other accidents. The grounding lead-out wire should be tinned braided copper wire, and soldering iron should be used when connecting with the copper strip of the cable. It should not be sealed with a torch to avoid burning the insulation.

C. The three-phase copper shield should be connected to the ground wire separately. Note that the shielded ground wire and the steel armored ground wire should be led out separately and insulated from each other. The position of the welding ground wire should be as low as possible.

河南电线电缆

7. Basic requirements for cable ends and intermediate joints: a. Good conductor connection; b. Reliable insulation; radiation crosslinked heat shrinkable silicone rubber insulation material is recommended; c. Good sealing; d. Sufficient mechanical strength, Can adapt to various operating conditions.


8. The cable ends must be waterproof and eroded by other corrosive materials to prevent breakdown due to the aging of the insulation layer caused by water trees.


9. Cranes or forklifts must be used for cable loading and unloading. It is forbidden to transport or lay flat. When installing large-scale cables, use a cable drop car to prevent the cable from being damaged by external forces or scratching the insulation due to manual drag.


10. If the cable cannot be laid in time for some reason, it should be stored in a dry place to prevent sunlight and water at the cable end.


URL of this article: http://herzheart.com/南方双彩网/394.html

Keywords: Zhengzhou wire and cable , Henan wire and cable , wire and cable manufacturer

Recently Viewed:

  • online service
  • contact number
    13838110230
  • Leave message
  • Mobile site
  • Online consultation
  • Emerald Customer Service
  • Welcome to leave us a message
    Please enter your message here, we will contact you as soon as possible.
    Name
    Contact person
    phone
    Landline / mobile number
    mailbox
    mailbox
    address
    address