Underground cable

An underground cable is a cable that works below the ground. It may be protected inside a pipe called a cable duct, or it may be directly buried. Underground cables distribute electrical power or telecommunications. Such cables are an alternative to overhead cables, which are several meters above the ground. Overhead cables are often replaced with underground cables. Downtown areas with many tall buildings usually have few or no cables above ground, This is mainly for aesthetic purposes because underground cables can not be seen. They are also less dangerous to people because they are out of the way. They cost more to install, but last longer.

Identifying a fault in underground cable may be difficult because it cannot be seen or accessed by test equipment  Faults are usually one of three different types. They can be short circuit, open circuit, or the breakdown of cable insulation. It requires testers like Underground Wire Locator to identify the fault.

References

Category:Infrastructure