Disconnecting meens
- Thread starter 521438
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petersonra
Senior Member
- Location
- Northern illinois
- Occupation
- Semi-retired engineer
Re: Disconnecting meens
What would the purpose of this disconnect be?
My house has a meter on the outside and the panelboard inside. No disconnect outside. Its probably within 10 feet.
What would the purpose of this disconnect be?
My house has a meter on the outside and the panelboard inside. No disconnect outside. Its probably within 10 feet.
aelectricalman
Senior Member
- Location
- KY
Re: Disconnecting meens
That is false. If you have to cross a stud space or floor space you must have a disconnect. Also, I believe it is 6 feet on the disconnect. Either way, you will need a disconnecting means at 10 feet for sure. Regardless of the situation, think about it, that run of wire is not fused. Do you want a piece of wire running across your home unfused. Negative. If the meter is not behind the panel or if the meter is not within 6 feet below leading into the basement where the panel is placed, I put a diconnect. Its smart, safer, and code.
That is false. If you have to cross a stud space or floor space you must have a disconnect. Also, I believe it is 6 feet on the disconnect. Either way, you will need a disconnecting means at 10 feet for sure. Regardless of the situation, think about it, that run of wire is not fused. Do you want a piece of wire running across your home unfused. Negative. If the meter is not behind the panel or if the meter is not within 6 feet below leading into the basement where the panel is placed, I put a diconnect. Its smart, safer, and code.
pierre
Senior Member
- Location
- Westchester County, New York
Re: Disconnecting meens
There is no 10 foot rule, or 6 foot rule in the NEC.
There is an errata in the 1st printing of the 2002 NEC in section 338.10(B)(4), the 3rd paragraph that states "The length of the cable extending indoors to the first termination box shall not exceed 6 feet."
I believe this is where alot of the confusion stems from.
230.70(A)(1)
"...either outside of a building or structure or inside nearest the point of entrance..."
There are some jurisdictions that override the NEC and permit the Service Entrance Conductors to be installed further inside a building than permitted by the NEC.
[ February 24, 2005, 06:39 PM: Message edited by: pierre ]
There is no 10 foot rule, or 6 foot rule in the NEC.
There is an errata in the 1st printing of the 2002 NEC in section 338.10(B)(4), the 3rd paragraph that states "The length of the cable extending indoors to the first termination box shall not exceed 6 feet."
I believe this is where alot of the confusion stems from.
230.70(A)(1)
"...either outside of a building or structure or inside nearest the point of entrance..."
There are some jurisdictions that override the NEC and permit the Service Entrance Conductors to be installed further inside a building than permitted by the NEC.
[ February 24, 2005, 06:39 PM: Message edited by: pierre ]
Re: Disconnecting meens
If the service entrance conductors are under or behind 2" of concrete or brick, they are considered outside the building. You can run them as far before hitting a disconnect as you want if they are outside.
"Nearest the point of entrance" is a judgment call by the AHJ. Most will let a conduit come up through a floor and run 2 or 3 feet to panel height before hitting overcurrent protection.
Steve
If the service entrance conductors are under or behind 2" of concrete or brick, they are considered outside the building. You can run them as far before hitting a disconnect as you want if they are outside.
"Nearest the point of entrance" is a judgment call by the AHJ. Most will let a conduit come up through a floor and run 2 or 3 feet to panel height before hitting overcurrent protection.
Steve
Re: Disconnecting meens
If the service entrance conductors are under or behind 2" of concrete or brick, they are considered outside the building. You can run them as far before hitting a disconnect as you want if they are outside.
"Nearest the point of entrance" is a judgment call by the AHJ. Most will let a conduit come up through a floor and run 2 or 3 feet to panel height before hitting overcurrent protection.
Steve
If the service entrance conductors are under or behind 2" of concrete or brick, they are considered outside the building. You can run them as far before hitting a disconnect as you want if they are outside.
"Nearest the point of entrance" is a judgment call by the AHJ. Most will let a conduit come up through a floor and run 2 or 3 feet to panel height before hitting overcurrent protection.
Steve
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