HANDBOOK REQUIREMENTS - Central Maine Power Company

VI. SERVICE (ENTRANCE) EQUIPMENT
600. DISCONNECTING MEANS
A suitable service disconnecting means must
be provided
for each customer's source of supply. In multiple occupancy
buildings a main service disconnecting means, where required
by
the NEC or as specified by local ordinances, shall also be installed
so as to completely disconnect all of the interior wiring at one
point. In accordance with NEC Section 230.71, there shall be not
more than six disconnects (without a main), per service, grouped
in any one location. Each service disconnect shall be permanently
marked to identify it as a service disconnect. The disconnecting
means must be located in a readily accessible place either outside
of a building or structure or inside nearest the point of entrance of
the service conductors (per NEC Section 230.70). The
disconnecting means shall plainly indicate whether it is in the
open (OFF) or closed (ON) position per NEC Section 230.77.
Where a circuit breaker is utilized and the handle is operated
vertically,
the "up" position shall be the "on" position (per NEC
Section 240.81).
The service equipment for permanent services shall be of a
type and size as required
by NEC Article 230 and shall be marked
" suitable for use as service
equipment" per NEC Section 230.66.
The Company
reserves the right to seal any service disconnecting
means as a general safety measure and as a protection against
tampering by unauthorized persons. The Company will not be
responsible for sizing service equipment.
Mounting provisions for service disconnecting means and
associated
equipment shall be furnished and installed by the
custom er. They shall solidly support the equipment and provide
anchorage
for cables and conduits attached to the service
equipment. Where located in basements,
an air space shall be
provided
at the back when next to an outside wall. They shall be
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