- Location
- Mission Viejo, CA
- Occupation
- Professional Electrical Engineer
I've noted some threads regarding ungrounded/high-resistance grounded systems.
I no longer have access to the ICEA standards, but the definition of voltage-rating with respect to conductors is slightly different than with general equipment and it affects the proper use of the these systems if a ground-fault is not cleared in a timely manner.
I believe the definition is effectively based on the three-phase voltage of the system, but I can't find a clear reference in either the UL or NEMA documents I have available.
Essentially, the question is: When I say I have 600 Volt rated wire, what does the 600V refer to? And from what Standard is it cited?
I no longer have access to the ICEA standards, but the definition of voltage-rating with respect to conductors is slightly different than with general equipment and it affects the proper use of the these systems if a ground-fault is not cleared in a timely manner.
I believe the definition is effectively based on the three-phase voltage of the system, but I can't find a clear reference in either the UL or NEMA documents I have available.
Essentially, the question is: When I say I have 600 Volt rated wire, what does the 600V refer to? And from what Standard is it cited?