Does the nec address these questions? How much unmetered conductor (riser cable) is allowed inside a dwelling before the meter? Can the riser cable be installed in a pipe riser inside the dwelling wall and then go outside to the meter before it comes back inside to the panel? Who is responsible to decide what is acceptable, the inspector or the utility?
article 230
- Thread starter al smith
- Start date
- Status
- Location
- Massachusetts
Re: article 230
230.6
The installation you describe would not likely be acceptable in many areas.
[ November 26, 2005, 04:50 PM: Message edited by: iwire ]
The NEC does not care about the meter, if you mean how much service cable can run inside before overcurrent protection is installed than 230.70(A)(1)
230.71(A)
230.6
That largely depends on where the 'service point' (Article 100) is located. However the 'service point' is not likely to extend beyond the load side of the meter socket.
The installation you describe would not likely be acceptable in many areas.
[ November 26, 2005, 04:50 PM: Message edited by: iwire ]
Re: article 230
anyplace i have ever worked, NO unmetered conductor was allowed inside the building except where (as in the case of a large shopping mall) there is a specific metering room).
someone please help me out if i am wrong, but this is due to utility requirements, not the nec.
as mentioned above the code is specific about the length of conductor allowed inside the building that does not have overcurrent protection. most places i have worked, the meter is not on the line side of the meter, so the unmetered cable would also have no overcurrent protection.
is this a case where the electrician is trying to put the meter somewhere else on the building beside where the service lateral is located. the utility here decides both were the service lateral will be brought to and also where the meter will be located. sometimes we need to install a riser high enough to get clearance above the building to meet their needs. i cant say that i have ever even considered putting the service drop on the opposite side of the building from the meter.
in the past i have installed a meter directly below the service drop, then run the cable (in conduit) a good distance outside the house to make an entry near the panel location.
[ November 26, 2005, 03:29 PM: Message edited by: jbwhite ]
anyplace i have ever worked, NO unmetered conductor was allowed inside the building except where (as in the case of a large shopping mall) there is a specific metering room).
someone please help me out if i am wrong, but this is due to utility requirements, not the nec.
as mentioned above the code is specific about the length of conductor allowed inside the building that does not have overcurrent protection. most places i have worked, the meter is not on the line side of the meter, so the unmetered cable would also have no overcurrent protection.
is this a case where the electrician is trying to put the meter somewhere else on the building beside where the service lateral is located. the utility here decides both were the service lateral will be brought to and also where the meter will be located. sometimes we need to install a riser high enough to get clearance above the building to meet their needs. i cant say that i have ever even considered putting the service drop on the opposite side of the building from the meter.
in the past i have installed a meter directly below the service drop, then run the cable (in conduit) a good distance outside the house to make an entry near the panel location.
[ November 26, 2005, 03:29 PM: Message edited by: jbwhite ]
- Location
- Massachusetts
Re: article 230
In my area about 5' of service conductors are allowed into the building before we must have a disconnect.
Other areas allow more, another area may allow none.
Now if the service conductors are installed under not less than 50 mm (2 in.) of concrete beneath a building or other structure
or
are installed within a building or other structure in a raceway that is encased in concrete or brick not less than 50 mm (2 in.) thick
or
are installed in conduit and under not less than 450 mm (18 in.) of earth beneath a building or other structure
They are not considered 'inside' the building.
Each power company sets their own rules to some extent.
In my area about 5' of service conductors are allowed into the building before we must have a disconnect.
Other areas allow more, another area may allow none.
Now if the service conductors are installed under not less than 50 mm (2 in.) of concrete beneath a building or other structure
or
are installed within a building or other structure in a raceway that is encased in concrete or brick not less than 50 mm (2 in.) thick
or
are installed in conduit and under not less than 450 mm (18 in.) of earth beneath a building or other structure
They are not considered 'inside' the building.
paul
Senior Member
- Location
- Snohomish, WA
Re: article 230
A flush mount meter can with the riser or lateral in the wall come to mind.
A flush mount meter can with the riser or lateral in the wall come to mind.
pierre
Senior Member
- Location
- Westchester County, New York
Re: article 230
This is addressed in 230.70(A)(1).
This is addressed in 230.70(A)(1).
- Status