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Practical guidance for choosing, installing and maintaining electrical systems and products with confidence.

Articles June 28, 2022 3 min read

What Is a Wire Map Tester?

A wire map tester is a device that transmits signals through each wire in a copper twisted-pair cable to determine if it is connected to the correct pin at the other end.Wire…

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Articles June 28, 2022 2 min read

What Are Cable Glands?

Cable Glands are circular mechanical cable entry devices that seal electrical cable entering an enclosure, motor, pump or generator. Cable Glands are the universal replacement for more expensive conduit and are used…

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Articles June 28, 2022 2 min read

What Is OPGW Fiber?

OPGW, or OPTGW cables stand for Optical Ground Wire and they are a type of overhead fiber cable. OPGW are usually installed on normal voltage and extra high voltage power lines. This…

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