Equipotential grounding
- Thread starter sam34
- Start date
- Status
- Location
- Windsor, CO NEC: 2017
- Occupation
- Service Manager
Re: Equipotential grounding
I think it's referring to 517.19(C).
I have no idea what it's talking about.
I think it's referring to 517.19(C).
I have no idea what it's talking about.
Re: Equipotential grounding
Sam, the 100 sq perimeter is only the spec, this is not an NEC requirement, nor is the testing.
The Testing is an NFPA 99 issue. The test criteria is covered in the 2002 NFPA 99 4.3.3 (before 2002 it would be in chapter 3 of the NFPA 99 code)
Take note that the test equipment is specialized for these test and is not cheap, this equipment must be tested (calibrated and certified) not less than annually. Click on Electrical Safety Analysers HERE.
Fluke will also calibrate and support this equipment. There are other manufacturers of this type of equipment as well.
If your company does not own Bio Med test equipment, you may want to consider subbing this work out.
See thisPatient Vicinity Grounding article for some more information.
Roger
Sam, the 100 sq perimeter is only the spec, this is not an NEC requirement, nor is the testing.
The Testing is an NFPA 99 issue. The test criteria is covered in the 2002 NFPA 99 4.3.3 (before 2002 it would be in chapter 3 of the NFPA 99 code)
Take note that the test equipment is specialized for these test and is not cheap, this equipment must be tested (calibrated and certified) not less than annually. Click on Electrical Safety Analysers HERE.
Fluke will also calibrate and support this equipment. There are other manufacturers of this type of equipment as well.
If your company does not own Bio Med test equipment, you may want to consider subbing this work out.
See thisPatient Vicinity Grounding article for some more information.
Roger
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