Concrete encasing conduit containing service conductors in NYC
- Thread starter Tainted
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- Location
- New Jersey
- Occupation
- Journeyman Electrician
I'm guessing that after the end box ConEd doesn't care about the length so the DOB decides. I've found that as long as the service equipment is in the same room they seem to allow 20'-30' in a raceway without concrete. Here's a recent service in a new building. As you can see there is quite a bit of EMT feeding the service.
ah, I see... this pic helps a lot with my design. And I'm assuming it does not matter what height the service end box is as long as it has 3 feet clearance and is accessible?
Can the service end box be down to the floor level even though con edison point of entry is at the very top? How many feet can conduits containing service entrance conductors run with or without concrete before penetrating the service end box?
- Location
- New Jersey
- Occupation
- Journeyman Electrician
Yes the box can be at the floor level but that would depend on ConEd and where their stabs enter the room. From a network protection compartment as shown in the photo the stab entry is at the top that's why the end box is well above the floor.
The length of the conduit is variable but within the room with the service equipment I have never seen a raceway in concrete. In this installation the EMT's are at least 20' long. The dirty little secret is that although we tend to think of POCO conductors as never protected the stabs for a 4000 amp service typically have a 5000 amp fuses ahead of them on the POCO side.
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