2.4.1.1
General
Cable construction shall be [Type MV, conforming to NFPA 70 and UL 1072]
[concentric neutral underground distribution cable conforming to AEIC C8]
[metallic armored cables, consisting of three-conductor, multi-conductor
cables, with insulation and shielding, as specified, using [a galvanized
steel] [an aluminum] interlocked tape armor and thermoplastic jacket].
Cables shall be manufactured for use in [duct] [or] [direct burial]
applications [as indicated].
2.4.1.2
Ratings
Cables shall be rated for a circuit voltage [of] [5 kV] [15 kV] [25 kV] [28
kV] [35 kV] [as indicated].
2.4.1.3
Conductor Material
**************************************************************************
NOTE: A concentric compressed conductor has a
diameter that is 3 percent less than a regular
concentric conductor. A compact conductor has a
diameter that is 10 percent less than a regular
concentric conductor. Specify compressed or compact
conductors where necessary to limit duct fill (i.e.
where new conductors are installed in existing
dusts). When aluminum is exposed to water,
oxidation occurs. To prevent oxidation, the
conductor is filled with insulation. Add filled
conductor requirement if needed.
**************************************************************************
Underground cables shall be [soft drawn copper complying with ASTM B 3 and
ASTM B 8 for regular concentric and compressed stranding or ASTM B 496 for
compact stranding] [aluminum alloy 1350, 3/4 hard minimum complying with
ASTM B 609/B 609M and ASTM B 231/B 231M for regular concentric and
compressed stranding or ASTM B 400 for compacted stranding].
2.4.1.4
Insulation
**************************************************************************
NOTE: In addition to the standard MV-90, NFPA 70
also lists an MV-105 temperature rating. However,
MV-105 is not available from all manufacturers.
Provide MV-105, only if needed. For projects which
require multiple types of insulations, or special
types of cables, such as submarine cable, indicate
the type for each cable on the project drawings.
Choose XLP or tree retardant XLP for "UD or URD"
cable, and either XLP or EPR for Type MV cable.
**************************************************************************
Cable insulation shall be [cross-linked thermosetting polyethylene (XLP)
insulation conforming to the requirements of AEIC C8]
[ethylene-propylene-rubber (EPR) insulation conforming to the requirements
of AEIC CS6] [_____]. A 133 percent insulation level shall be used on 5
kV, 15 kV and 25 kV rated cables. The Contractor shall comply with EPA
requirements in accordance with Section 01670 RECYCLED / RECOVERED
MATERIALS.
SECTION 16375A
Page 20
Previous Page
