Supplemental Electrode Required

[Romz1978]

I'm a retired electrical contractor from Missouri who has moved to Pensacola FL. I now have a license in Escambia Co., and Pensacola. My first project, I installed a 200-amp service in the 1940 home I purchased. I installed two ground rods 15' apart and ran a separate #4 bare to each rod. The inspector failed the project because I did not use a single conductor continuously for the two rods. 250.53(B) states two electrodes bonded together shall be considered a single electrode. Does this mean my second electrode is no longer a supplemental electrode required 250.53(A)(2)? Back home we have always installed two grounds. I actually used Mike Holt's system to study for the Block Exam; at the time it was VCR tapes and workbooks. Who's right, Missouri or Florida?

 

[roger]

There are a good number of inspectors (as well as electricians) that could use some education.

 

[infinity]

I installed two ground rods 15' apart and ran a separate #4 bare to each rod.

So you actually ran a separate GEC to each rod. Nothing would prohibit you from doing that. The two electrodes are bonded together because they connected together at the neutral bus.