HANDBOOK REQUIREMENTS - Central Maine Power Company

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Primary service requiring higher amperage or voltage ratings is
beyond the scope of this policy. Information for such service may
be obtained by contacting the Company's local Service
Coordinator.
All industrial and commercial primary 3 phase underground
distribution will be installed in a conduit system. The conduit
system will consist of standard size concrete
manholes/handholes as needed to splice joints, junctions, or to
meet cable pulling requirements. The ducts will be a minimum of
schedule 40 PVC of a diameter adequate for the largest cable that
may be necessary to serve the total anticipated load. The conduit
system
will include an adequate number of ducts for all necessary
cables plus one spare duct (capped at both ends), and will provide
a loop or alternate feed cable configuration. The conduit will be
properly pitched to ensure water drainage into
manholes/handholes.
Conduit configuration will be limited to a
single horizontal layer, if encased in sand. Multiple layer
configurations must be encased in concrete. In urban areas or
where site conditions make digging for repair of ducts
impracticable or cost prohibitive, the conduit system will be
encased in concrete regardless of conduit configuration.
The Company's Distribution Engineer must approve all
conduit layouts prior to construction and will provide the design
requirements (number and size of ducts, size and location of
manholes and splice boxes) upon request.
910. CONDUIT REQUIREMENTS/SPECIFICATIONS
A. GENERAL
The customer shall furnish, install, own and maintain the
necessary ducts which must conform to the specifications of
the