test program.

II. Circuit Wiring and Equipment 708.10 Feeder and

Branch Circuit Wiring. (A) Identification.

(1) Boxes and Enclosures. All boxes and enclosures (including transfer switches, generators, and power panels) for critical operations power system circuits shall be permanently marked so they will be readily identified as a component of the system.

(2) Receptacle Identification. The cover plates for the electrical receptacles or the electrical receptacles themselves supplied from the COPS shall have a distinctive color or marking so as to be readily identifiable.

(B) Wiring. Wiring of two or more COPS circuits supplied from the same source shall be permitted in the same raceway, cable, box, or cabinet. Wiring from a COPS source or COPS source distribution overcurrent protection to critical loads shall be kept entirely independent of all other wiring and equipment.

Exception: Where the COPS feeder is installed in transfer equipment enclosures.

(C) COPS Feeder Wiring Requirements. COPS feeders shall comply with 708.10(C)(1) through (C)(3).

(1) Protection Against Physical Damage. The wiring of the COPS system shall be protected against physical damage. Wiring methods shall be permitted to be installed in accordance with the following:

(1) Rigid metal conduit, intermediate metal conduit, or

Type MI cable.

(2) Where encased in not less than 50 mm (2 in.) of concrete, any of the following wiring methods shall be permitted:

a. Schedule 40 or Schedule 80 rigid polyvinyl chloride
conduit (Type PVC)
b. Reinforced thermosetting resin conduit
(Type
RTRC)
c. Electrical metallic tubing (Type EMT)
d. Flexible nonmetallic or jacketed metallic raceways
e. Jacketed metallic cable assemblies listed for instal- .
lation in concrete
(3) Where provisions must be made for flexibility at equipment connection, one or more of the following shall also be permitted:
a. Flexible metal fittings
b. Flexible metal conduit with listed fittings
c. Liquidtight flexible metal conduit with listed fittings

(2) Fire Protection for Feeders. Feeders shall meet one of the following conditions:

(1) Be a listed electrical circuit protective system with a minimum 1-hour fire rating

(2) Be protected by a fire-rated assembly listed to achieve a minimum fire rating of 1 hour

(3) Be embedded in not less than 50 mm (2 in.) of concrete

(4) Be a cable listed to maintain circuit integrity for not less than 1 hour when installed in accordance with the listing requirement

(3) Floodplain Protection. Where COPS feeders are in- stalled below the level of the 100-year floodplain, the circuit conductors shall be listed for use in a wet location and be installed in a wiring method that is permitted for use in wet locations.

(D) COPS Branch Circuit Wiring.

(a) Outside the DCOA. COPS branch circuits installed outside the DCOA shall comply with the physical and fire protection requirements of 708.10(C)(1) through (C)(3).

(b) Within the DCOA. Any of the wiring methods rec- ognized in Chapter 3 of this Code shall be permitted

within the DCOA.

708.11 Branch Circuit and Feeder Distribution

Equipment.

(A) Branch Circuit Distribution Equipment. COPS branch circuit distribution equipment shall be located within the same DCOA as the branch circuits it supplies.

(B) Feeder