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Proper grounding procedures
Q: I`m performing telecommunications renovations work on one floor of a high-rise office building that does not have an existing telecommunications ground wire. Is it permissible to ground one end of the metallic sheath of a new riser cable to the electrical ground at the point of penetration and the other end to a power panel box (connected by a licensed electrician) where the riser terminates on the floor, rather than running an entirely new ground wire?