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Posted by RBM on February 8, 2007, 7:25 am
Got ya, I'm not familiar with their rules. Con Edison of NY has their
engineers decide if the size of a lateral is adequate for a service upgrade,
unless of course when the customer owns the lateral, then it has to meet
NEC, but once I connected a 200 amp service to #2 copper and once to #6,
which was in a wooden duct from the street to the house
> On Wed, 7 Feb 2007 14:18:00 -0500, "RBM" <rbm2(remove
> this)@optonline.net> wrote:
>
>>Utility companies, at least in NY do not use NEC standards, period
>>
>>
>
> "NESC" was not a typo. It is the code utilities use.
> Different than NEC
>
>
>>
>>> On Tue, 6 Feb 2007 17:42:07 -0500, "RBM" <rbm2(remove
>>> this)@optonline.net> wrote:
>>>
>>>>Just to add to what Doug has already said: While the service conductors
>>>>that
>>>>you own, must meet NEC standards, it's common for utility company owned
>>>>conductors to be much smaller, so it's not unusual to see thing like 1/0
>>>>aluminum connected to a 400 amp residential service
>>>>
>>>
>>> This always happens in overhead service since they use the free air
>>> rule in the NESC but underground service laterals are usually going to
>>> follow 310.15(B)(6).
>>
>
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