Red Book - Long Island Power Authority

4.9 IDENTIFICATION OF CABLES
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Section 4 – Service Connections
4.9.1 Primary cable shall, in all cases, be color coded with one or more parallel stripes for phase
identification. Any contrasting color may be used except white or green.
Aφ = 1 Stripe
Bφ = 2 Stripes
Cφ = 3 Stripes
4.9.2 Secondary color coding of three phase conductors at the service connection and meter
enclosure shall be marked as follows:
VOLTAGE
208Y/120
240/120 delta
480Y/277
Aφ
Blue
Blue
Brown
Bφ
Black
Black
Orange
Cφ
Red
Orange
Yellow
4.9.3 All secondary neutral conductors shall be marked at the service connection and meter
enclosure with white or gray tape.
4.9.4 When two or more units of a building are supplied from the same transformer, in
accordance with Article 230-40 of the NEC (latest edition), the contractor shall label the
service cables within the transformer enclosure or adjacent manhole to identify the unit
supplied.
4.10 SERVICE END BOXES
4.10.1 Where LIPA's distribution system is underground and LIPA elects to provide cables to and
within the building, a service end box will be required.
4.10.2 LIPA will make all connections in service end boxes mounted externally on the building.
LIPA does not complete nor is it responsible for connections to be made when it runs cable
into a service end box mounted inside a building.
4.10.3 Service end box size shall comply with all requirements of the NEC and shall be installed
in accordance with the manufacturers requirements
4.10.4 All service end boxes must be installed in an accessible location. Areas such as crawl
space, space under show window, etc., will not be considered accessible. The service end
box must be mounted in a vertical rain-tight position when utilized outdoors.
4.10.5 If aluminum conductors are used within a service end box, lug type compression
connectors or internally fired lugs are required and shall be of the two-bolt type.
4.11 UNDERGROUND SERVICE CONNECTION FROM OVERHEAD DISTRIBUTION
4.11.1 Where an underground secondary service is to be supplied from an overhead distribution
line on the public highway or on an easement, LIPA will identify the pole to be used for the
underground connection. It is the customer's responsibility to extend his cable across the
roadway to LIPA pole lines on the opposite side of the street. In areas where both
overhead and underground distribution facilities exist, LIPA must be consulted in order to
designate a service point for the applicant.