In the case of a lightning strike or a direct short to ground from hydro primary, the air around the conductor will actually become a partial conductor as the air ionizes. So if there is a sharp bend in the conductor the energy will "jump" from that to the nearest point of ground. So the impedance rather than the resistance will be affected if a ground wire is bent too sharply. If there is a nice smooth bend radius there is less impedance resulting in a better path to ground. The CEC (canadian electrical code) specifies bend radius for grounding conductors and stranding requirements but I don't know about the NEC's code on this.....
Hope i'm on the right track guys!...router had it down pat! Always think of electricity as water traveling thru a hose, except for high voltage..it does what it wants, and when it wants!
CJ
Re: Hard turns on ground wire
Member #: 25185
Registered: 8/23/2003
Posted:
24
Company:
SJS technical services
Occupation:
Electrician
Location:
Ontario, Canada
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