SER for Range

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frofro19

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Location
VA.
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Master Electrician
Can #8 SER AL be used for an electric range on a 40 amp breaker? I know that romex has to be used in the 60° colum but was wondering about SER cable.
 
We are on the 2014 code and it will be ran from a feed-through disconnect located beside of meter base and ran in the crawl space and then up through the floor to the range receptacle mounted on the floor.
 
frofro19 said:
We are on the 2014 code and it will be ran from a feed-through disconnect located beside of meter base and ran in the crawl space and then up through the floor to the range receptacle mounted on the floor.
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If it's not ran through thermal insulation then you can use the 75 deg column.
 
VA adopted the 2017 code last year. Until July 1st of this year, installations are permitted to be under 2014 or 2017, but then the 2017 takes full effect. They've also gotten rid of several state amendments to the code including a long-standing one requiring AFCIs only for bedrooms. After July 1st, we'll be hit with the full 2017 AFCI compliance.
 
Buck Parrish said:
If this is your own home. I would recommend using #8 cu on a 40 amp breaker. I generally treat customers homes like it were my own.
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Would there be a problem using #8 AL on a 40 amp breaker? I generally use 6/3 romex on a 50 amp breaker. And we used to use 6 AL on a 50 amp breaker years ago and with the high cost of copper, have entertained the thought of using AL on some circuits that we used to use back in the day.
 
frofro19 said:
Would there be a problem using #8 AL on a 40 amp breaker? I generally use 6/3 romex on a 50 amp breaker. And we used to use 6 AL on a 50 amp breaker years ago and with the high cost of copper, have entertained the thought of using AL on some circuits that we used to use back in the day.
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IMO, #8 aluminum ser can be used on a 40 amp breaker based on ser being used at 75C.
 
frofro19 said:
Can #8 SER AL be used for an electric range on a 40 amp breaker? I know that romex has to be used in the 60° colum but was wondering about SER cable.
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I believe this is fine. 338.10(B)(4) has some restriction for thermal insulation plus 10awg and smaller.
Long as the panel and breakers are rated for 75C and the Range receptacle ( A recent one i looked at was).

My code book is a 2017 Handbook it has some commentary that seems to support this installation
 
What revision of the NEC is that from? Some of the comments above seemed to say that the answer to the original question depends on whether you go by the 2014 or the 2017 code.
 
Mr. Serious said:
What revision of the NEC is that from? Some of the comments above seemed to say that the answer to the original question depends on whether you go by the 2014 or the 2017 code.
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The code writers did a bunch of hand wringing and wasted time resources that they should have used to improve other parts of the code that desperately need it, and fiddling around with ampacity of SER for several code cycles before putting it back to where it was originally.
 
Mr. Serious said:
What revision of the NEC is that from? Some of the comments above seemed to say that the answer to the original question depends on whether you go by the 2014 or the 2017 code.
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This is a 2017 Nec handbook with author commentary. The 6 commentators all appear to be NFPA engineers of some sort
 
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