jph320 Posted July 15, 2010 Report Share Posted July 15, 2010 How far from the meter can the service panel be before I need a disconnect? Quote Link to comment Share on other sites More sharing options...
Marc Posted July 15, 2010 Report Share Posted July 15, 2010 I'm not aware of any code restriction on that except that the single pole voltage drop to the furthest load is not allowed to be more than 3% and the total 2 pole drop is limited to 5%. This is from the 08' NEC. In my area, the AHJ doesn't allow it to be more than 6'. Marc Quote Link to comment Share on other sites More sharing options...
Tom Raymond Posted July 15, 2010 Report Share Posted July 15, 2010 That is going to be a regional thing, and likely different for residential and commercial buildings. In my area on a residential building the SEC is only allowed to run 6' on the interior but it often runs halfway around the house outside. Two hours north of me they keep the exterior runs short and allow the cable to run all over the interior before the disconnect. After 15 years in this trade you should have an incling what the basic requirements are in your area, talk to your local AHJ. Tom Quote Link to comment Share on other sites More sharing options...
Jim Katen Posted July 15, 2010 Report Share Posted July 15, 2010 How far from the meter can the service panel be before I need a disconnect? Look in 225.32. - Jim Katen, Oregon Quote Link to comment Share on other sites More sharing options...
Jim Port Posted July 16, 2010 Report Share Posted July 16, 2010 The length of unfused conductors or cables inside the building need to be "as short as practical" to satisfy the NEC. Outside there is no limit. Some areas commonly allow 5-6'. Both references to voltage drop in 210.19 and 215.2 are FPN's, (Fine Print Notes) and are not enforceable. Quote Link to comment Share on other sites More sharing options...
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