Electric Actuator ICON2000/ICON2000AD
ADDENDUM G to INSTRUCTION HANDBOOK MAN 618
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7.7.1.2 Class III Division 1 and 2
The general rule of the National Electrical Code®, Article 503 shall apply to
the electrical wiring and equipment in location classified as Class III in Article
500.5 (D) of NEC and in particular:
- wiring methods shall comply with 503.10
- un-insulated exposed part shall comply with 503.25
- grounding and bonding with 503.30
- equipment shall comply with 503.100 up to 502.160
7.7.1.3 General recommendation for maintenance in Hazardous Location
During the dismantling and subsequent reassembling of the explosion-proof
enclosures (covers, cable glands, joints) be careful to bring these enclosures
back to their original condition to maintain their integrity. In particular, be sure
the joint surfaces of all enclosures are spread with a film of recommended
grease. Procedure to be followed:
Do not damage the explosion-proof mating surfaces on the housing and on
the electrical enclosure covers.
Reinstall all the screws that go with the dismantled parts, and block them
with a thread sealant after spreading them with a film of copper- or
molybdenum-based grease. This will keep screws from sticking and make
maintenance operations easier.
Important:
In case the screws of the cover or other parts relevant to
the explosion-proof protection must been replaced check
that new bolts and/or screws are of the same dimension
and quality as the original ones as stated on the list of
material included on this manual, or of a better quality.
In case the screws of the cover must been replaced, a SS
AISI 316 Class A4 Grade 70 must be used with
minimum yield strength of 450 N/mm
2
Warning:
Do not electrically operate the ICON2000 when the
electrical enclosures are removed. Operating the unit
with the electrical enclosures removed could cause
personal injury.
Replace the weatherproof seals that may have been removed (O-Ring for
the covers, O-Ring for the explosion-proof joint of the motor).
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