WAC 296-46B-225 Outside branch circuits and feeders.

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WAC 296-46B-225 Outside branch circuits and feeders.

032 Location of outside feeder disconnecting means.

(2) The disconnecting means required by NEC® 225.31(B) must be provided to disconnect all ungrounded conductors that supply or pass through a building/structure in accordance with the requirements of NEC® 225.31(B) with the following exceptions.

(a) Outside location: A feeder disconnecting means, including that required by NEC® 700, 701, or 702 for a generator, is considered in the building if installed on the outside of the building/structure or within sight and within 15 feet of the building/ structure. The building disconnecting means may supply only one building/structure unless the secondary building(s)/structure(s) has a separate building disconnecting means meeting the requirements of the NEC® and this subsection. The disconnecting means must have an identification plate with at least one-half-inch high letters identifying:

(i) The building/structure served; and

(ii) Its function as the building/structure main disconnect(s).

(b) Inside location: The feeder disconnecting means must comply with NEC® 225.31(B).

036 Suitable for use as service equipment.

(3) A generator disconnecting means installed per (2)(a) of this section, is not required to be suitable for use as service equipment.

(4) A generator disconnecting means installed per subsection (2)(b) of this section, is not required to be suitable for use as service equipment when there is a feeder disconnecting means, located elsewhere on the premises, with overcurrent protection sized for feed-er conductors.

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WAC 296-46B-225 Outside branch circuits and feeders.

Below is a Real Question from our Electrical Continuing Education Courses for Electrical License Renewal:

In Washington, which of the following is true for an emergency generator?

A: A generator feeder disconnecting means is considered in the building if installed on the outside of the building or within sight and not further than 15 feet of the building.
B: A generator feeder disconnecting means is considered inside the building if installed within sight and not further than 50 feet of the building.
C: The generator feeder disconnecting means may be installed anywhere inside the building.
D: The generator feeder disconnecting means must be integral to the generator.
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