Nec 702.5(a)

[erickench]

The above NEC section state's the following:

Optional standby system equipment shall be suitable for the maximum available short-circuit current at it's terminals.

When the rule speaks of suitability does it mean the ability to withstand the short-circuit current or the equipment has the ability to interrupt the circuit during a short-circuit condition? Perhaps both?

 

[chevyx92]

The above NEC section state's the following:

Optional standby system equipment shall be suitable for the maximum available short-circuit current at it's terminals.

When the rule speaks of suitability does it mean the ability to withstand the short-circuit current or the equipment has the ability to interrupt the circuit during a short-circuit condition? Perhaps both?

Yes and yes.

 

[erickench]

I noticed that there is no rule for overcurrent protection for optional standby systems. I guess this NEC section covers it as well.