UL 1072 UL Standard for Safety Medium-Voltage Power Cables
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UL 1072 Document Information:
Title
UL Standard for Safety Medium-Voltage Power Cables
Underwriters Laboratories Inc.
Publication Date:
Jun 30, 2006
Scope:
These requirements cover the shielded and nonshielded
medium-voltage power cables that are described in Tables 1.1
(single-conductor) and 1.2 (multiple-conductor). Multiple-conductor
cables may include one or more individually jacketed non-conductive
optical-fiber members. These electrical and hybrid electrical and
optical-fiber cables are for use (optical and electrical functions
associated in the case of a hybrid cable) in accordance with
Article 328 and other applicable parts of the National Electrical
Code (NEC), ANSI/NFPA 70.
These cables have one or more stranded copper or aluminum
conductors that are insulated with a solid, extruded dielectric.
Cables that have a metal sheath or interlocked armor incorporate an
effective grounding path. A grounding conductor is optional in
other cables. Cables for direct burial are so marked and have an
overall covering (see 1.4 for direct-burial cables that are not
covered). Cables that are for use in cable trays generally are so
marked (see 62.1 and 62.2). Cables that are sunlight-resistant
generally are so marked (see 64.1 – 64.3). Cables that are marked
"MV-90" or "MV-90 dry" have a maximum operating temperature of 90°C
(194°F). Cables that are marked "MV-105" have a maximum operating
temperature of 105°C (221°F) for use where design conditions
require a maximum conductor temperature above 90°C (194°F). Cables
that are marked "dry" have insulation for use only in dry
locations. All other cables have insulation that is for use in both
wet and dry locations. Multiple-conductor cables that include one
or more optical-fiber members are surface marked to so indicate.
Cables that are marked "oil resistant II" are for exposure to
mineral oil at temperatures not in excess of 75°C (167°F). Cables
that are marked "oil resistant I" are for exposure to mineral oil
at temperatures not in excess of 60°C (140°F).
A multiple-conductor Type MV cable that has a smooth (other than
lead) or corrugated metal sheath or that has interlocked metal
armor may be marked for use also as Type MC cable.
This standard does not include requirements for cables with
concentric neutral conductors. However, it is possible to have a
single-conductor cable with a concentric neutral conductor
manufactured in accordance with the requirements of other
standards, that meets the requirements for jacketed
single-conductor shielded cable in this standard.
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