There are two 4inch conduits feeding the bottom of the gutter with 4x600mcm conductors in parallel in each which pass straight through to the two 4inch nipples which connect to the bottom of the meter assembly feeding the 800 amp breaker.
Auxiliary gutter on service.
My interpretation of an auxiliary gutter is a gutter made for and attached to the sides of an enclosure and they are always installed as a system with the cabinet.
The conductors from the service point to the service disconnecting means.
This article covers the use installation and construction requirements of metal auxiliary gutters and nonmetallic auxiliary gutters and associated fittings.
The current carrying capacities of insulated copper and aluminum conductors are given in tables e 310 12 and e 310 14 respectively.
Auxiliary gutter shall not exceed 20 of the interior cross sectional area of the gutter.
Second an auxiliary gutter is not a raceway unlike the physically similar product known as wireway this is based on the informational note to the art.
Nowhere 30 ft is the maximum length for any auxiliary gutter.
Articles 376 and 378.
When there are not more than 30 current carrying conductors the derating factors for ampacities do not have to be applied.
Article 366 auxiliary gutters i.
Articles 386 and 388 cover surface raceways not auxiliary gutters.
The capacities of bars cannot exceed 1 55 a per square millimeter 1000 a per square inch for copper and 1 09 a per mm2 700 a per square inch for aluminum.
The following refer to sheet metal auxiliary gutters.
E 374 06 carrying capacity of conductors.
A wireway by definition is installed as a separate system from the panel cabinet or other enclosure.
How to calculate auxiliary gutter fill 366 22 a b categories.
100 definition of raceway.
Electrical safety sizing a gutter for the proper fit is relatively easy.
Articles 386 and 388.
This auxiliary gutter used as a pull box is 5ft long 14inches deep by 14inches in height.
I get a lot of calls to make sure that the gutter that they are using is up to code.