bonding jumper การใช้

Correctly installed plumbing appliances will have a copper bonding jumper cable connecting the interrupted pipe sections.
Correcting the problem is a simple matter of either purchasing a copper bonding jumper kit, composed of copper cable at least # 6 AWG in diameter and two bronze ground clamps for affixing it the plumbing.
Because of the good electrical conductivity and high stability in the face of short-circuit pulses, exothermic welds are one of the options specified by ?50.7 of the United States National Electrical Code for grounding conductors and bonding jumpers.
Sometimes the fittings are considered sufficiently conductive to " bond " ( electrically unite ) the metal conduit to a metal junction box ( thus sharing the box's ground connection ); other times, "'grounding bushings "'are used which have bonding jumpers from the bushing to a grounding screw on the box.