Many users and installations face the problem of how to make cheap and efficient data transmission between buildings in a campus environment.Routing choices, transmission distances, and application environments all affect the choice of cable media. Incorrect or inappropriate selection can result in a limited period of wiring investment, and reinstallation can also cause the stop working of network system operation. When the cables are ready to installation,we should pay attention to the factors,...
In urban power grid reconstruction projects, cables, especially polyethylene insulated power cables, have been widely used. However, due to the particularity of the cable, there are special requirements for the installation, operation and maintenance of the cable. Cable dampness or water ingress reduces the insulation resistance of the cable, which is an important aspect of the cable line running accident.
Causes and hazards of cable flooding
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Power cable lines are generally laid underground or underwater, and there are also power cable lines laid overhead. Power cable lines are mainly composed of cables, cable intermediate connectors, cable terminations, etc. Some power cable lines also have accessories, such as pressure boxes, pressure and temperature warning devices. Underground power cable lines also include corresponding civil facilities, such as cable trenches, pipes, shafts, tunnels, etc. See More Consultation Project
1) Buried in underground pipelines or channels, no large corridors are required, and the land occupation is small.
2) Unaffected by climate and environment, the transmission performance is stable.
3) The maintenance workload is small and the safety is high.
4) It can be used for sections where the overhead line is difficult to pass, such as trans-strait transmission.
5) The conveying capacity is limited.
6) The cost is high, and the higher the voltage, the greater the di...
1.Product feature and purpose:Cross-linked polyethylene insulated power cables is characterized with high mechanical strength,strong resistance to environmental stress,excellent electrical properties ,powerful resistance to chemical attack.In addition,the light and simple products are user-friendly.This product is suitable and designed for power transmission and distribution system of rated voltage 0.6/1kv.In terms of the main feature of anti-flaming cable,the cable is not liable to ignite or co...
Product ApplicationThe PVC insulated electric wire is used for wiring in the A.C distribution circuit rated voltage up to 450/750V. Mainly applied in house wiring, constructing and other industrial wiring in the electric system.
Main FeaturesStandard:1. GB/T5023-2008/IEC60227-3:1997: PVC insulated cable rated voltage up to 450/750V;2. JB8734-1998 PVC insulated cable, wire and flexible cord rated voltage up to 450/750V.3 GB/T19666-2005 scope of flame retardant and fire resistant cable4. SANS...