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Type 2 SPD and Tap Rules

D

dcspector

Bronze Member
Joined
Dec 7, 2009
Messages
98
What I have here is a 2000 amp switch board and from the load side of service disconnecting means is a #10 thhn tap approx 8' in length in emt to a 30 amp fused switch then close nippled to the TVSS / SPD. My question is do TVSS / SPD's have to follow tap rules? Here are my references. 08' NEC 285.24(A), 230.82(8), 240.21(B)(1)......I say it is a violation. The EE is saying this was approved and stamped drawings and we do it all the time in DC, Md, and Va.
 
Re: Type 2 SPD and Tap Rules

peach said:
what are we tapping to?
Click to expand...
Eventually to a TVSS (Transient Voltage Surge Suppressor) or SPD (Surge Protective Device) This would be I assume a Type 2 per 285.24.
 
Re: Type 2 SPD and Tap Rules

peach said:
what are we tapping to?
Click to expand...
Forgot one more to your question. Load side of the 2000 amp gear now feeders, 6 sets of 750 mcm AA8000 al.
 
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