Electric Actuator ICON2000/ICON2000AD
ADDENDUM G to INSTRUCTION HANDBOOK MAN 618
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7.5 Installation in ambient with explosive dusts
Special attention must do to these following points:
before the assembly the joint surfaces must be greased with Aeroshell
grease.
the cable glands must have a protection degree at minimum IP66 or IP68
(15m depth / 90 hours) according to IEC/EN 60529 standard.
periodically verify the quantity of dust deposited on the enclosure and
clean it in the case the quantity becoming more than 5 mm.
7.6 Installation in Hazardous (Classified) Location
Regulatory Body in USA is the Occupational Safety and Health
Administration (OSHA) which has established systems that classify locations
which exhibit potentially dangerous conditions to the degree of hazard
presented.
OSHA Regulation establish that “In hazardous locations, specially designed
equipment and special installation techniques must be used to protect against
the explosive and flammable potential of these substances.”
Hazardous (or Classified) Location are technically described in the Section
500 Special Occupancies of the NFPA National Electrical Code
®
- NEC
®
.
Currently there are two systems used in the NEC
®
to classify these hazardous
areas; the Class & Division system (article 500 to 504) and the Zone system by
derivation from IEC (article 505 gas and 506 for dusts). The Class & Division
system is used predominately in the United States, whereas the rest of the
world generally uses the Zone system, and the BIFFI Electric Valve Actuator
ICON2000 is approved and marked according the Class & Division System.
Electric Valve Actuator ICON2000 is rated for use in Hazardous (Classified)
Location according NEC
®
, ANSI/NFPA 70 Chapters from 500 to 504, Class I
Division 1 and 2, Groups C & D, Class II Division 1 and 2 Groups E, F and G,
Class III Division 1 and 2.
The Enclosure is approved according NEMA 250: 2003 Standard related to
Enclosure for electrical equipment as NEMA 4, 4X and 6, which provide
protection against the following conditions:
- Access to hazardous part (contact with the enclosed equipment)
- Ingress of foreign solid body - dust, lint, fibers, and flyings
- Ingress of water - Falling liquids and light splashing, hosedown and
splashing
- Settling airborne dust, lint, fibers, and flyings
- Corrosive agents
- Occasional temporary submersion
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