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Document UL 50 is offered by IHS as part of an online subscription. This subscription contains many documents on the same topic.
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UL 50 Document Information:
Title
UL Standard for Safety Enclosures for Electrical Equipment, Non-Environmental Considerations
Underwriters Laboratories Inc.
Publication Date:
Sep 4, 2007
Scope:
This standard applies to enclosures for electrical equipment
intended to be installed and used in non-hazardous locations in
accordance with the Canadian Electrical Code, Part I, CSA C22.1,
the provisions of the National Electrical Code, NFPA 70, and the
provisions of Mexico's Electrical Installations, NOM-001-SEDE, as
follows:
a) Enclosures for indoor locations, Types 1, 2, 5, 12, 12K, and
13; and
b) Enclosures for indoor or outdoor locations, Types 3, 3R, 3S,
4, 4X, 6, and 6P.
This standard covers the non-environmental construction and
performance requirements for enclosures to provide a degree of
protection to personnel against incidental contact with the
enclosed equipment. The additional environmental construction and
performance requirements for enclosures are located in C22.2 No.
94.2, UL 50E, and NMX-J-235/2-ANCE (See Annex B, Ref. No. 14),
which are intended to be used in conjunction with this
standard.
Where an individual product standard contains requirements that
are at variance with those of this standard, the requirements of
the individual product standard take precedence.
In the United States and Mexico, cabinets and cutout boxes and
junction and pull boxes are covered by Clauses 9 and 10 of this
Standard. In Canada, junction boxes, cutout boxes, and pull boxes
are covered by CSA C22.2 No. 40 and are not covered by this
standard. See Annex B, Ref. No. 11.
Outlet boxes having a volume of not more than 1640 cm3 (100 in3)
are covered by CSA C22.2 No. 18, NMX-J-023/1-ANCE, and the UL 514
series (see Annex B, Ref. No. 6 and 12) and are not covered by this
standard.
In Canada and the United States , swimming pool type junction
boxes are covered by CSA C22.2 No. 89 and UL 1241 (see Annex B,
Ref. No. 10) and are not covered by this standard.
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