2.4.13
Electrification
2.4.13.1
Main Power Electrification
Main power electrification system shall provide power to crane
starter/disconnect circuit breaker.
2.4.13.2
Crane Runway Conductors
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NOTE: Select covered conductor bar system for:
a.
Indoor non-hazardous service
b.
Outdoor non-corrosive environment
Select festoon system for:
a.
Indoor - hazardous service
b. Outdoor - corrosive (marine) environment
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[Crane runway conductor system shall be the covered conductor bar system
type designed and manufactured to meet UL requirements. Protective covers
shall be the rigid or flexible self-closing type designed to cover all live
conductors and shall be shaped to prevent accidental contact with
conductors. Collectors shall be heavy-duty sliding shoe type compatible
with the electrification system. Two tandem designed collector heads shall
be provided for each conductor rail to provide redundancy.] [Crane runway
conductor system shall be the festooned type consisting of a support rail,
cables, junction boxes, cable cars and accessories. Hardware shall be
corrosion-resistant or protected against corrosion. Festoon storage area
shall not restrict the crane travel at the ends of runway.]
2.4.13.3
Bridge Span Conductors
Bridge span conductor system shall be the [festooned type consisting of a
support rail, electrical cables, junction boxes, cable cars and
accessories] [rigid conductor/collector type located within enclosure].
Cable loops shall not drop below the hook high position. Outdoor crane
bridge festoon system hardware shall be corrosion resistant.
2.4.13.4
Pendant Festoon System
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NOTE: The pendant festoon system is an option to
the Designer.
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Pendant festoon system shall consist of a support rail, cables, junction
boxes, cable cars and accessories. Cable loops shall not drop below the
hook high position. Pendant control car shall be provided with NEMA Type
[1] [3R] [12] junction box. Pendant festoon shall be [towed by trolley]
[independent of trolley motion]. Outdoor crane pendant festoon system
hardware shall be corrosion resistant.
SECTION 14630A
Page 45
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