Well grounded how to#
This explains what a well-grounded cable shield is, the benefits of a well-grounded shield, and how to test the continuity of the shield. That is easy to say but is difficult to achieve.
The first line of defense against these currents is continuous well-grounded shield. The 2 major sources of these external currents are from the power lines and lightning surges. The aluminum shield in communication cables is there to reduce the effect of external electrical currents on the wires in the cable. How To Identify Well-Grounded Cable Shield I hope this is a technique that you can add to your tool chest. The co-worker depended upon the Clamp-On Method while Bill used the following process, How to Identify a Well Grounded Cable Shield, (outlined in this article).īoth methods found problems but Bill’s method was more efficient and accurate. I reached out to William (Bill) Cole, a retired Bell South ICEP engineer, who defined a process for how to identify a well-grounded cable shield and how to test the continuity of the shield.Īn interesting backstory: Bill discovered his method while going head-to-head in a friendly competition with a respected co-worker to determine the best method for ensuring a well-grounded shield. A field technician with a high-power influence problem recently asked me how to ensure that a cable was properly bonded and grounded.
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