User`s manual

19
COMPLIANCE WITH CONSTRUCTION RULES
The following European safety rules are complied with:
EN 60079-0
General rules and regulations
EN 60079-1 (CEI 31-58)
Explosion-proof Enclosures “D”
EN 60079-7 (CEI 31-65)
Increased Safety Method of Protection “E”
EN 60079-18
Encapsulation “M”
EN 60529 (CEI 70-1)
Enclosure Protection Degree (IP)
EN 50.020 (CEI 31-9)
Intrinsic Safety Method of Protection “I”
EN 61241-1
Electrical Installations for Use in the Presence of Combustible
Dust
The maintenance and inspection of all electric components and explosion-proof equipment should be carried out by specially
appointed skilled personnel only. The explosion-proof cases must be opened using specifically designed spanners (hexagonal,
triangular etc.).
Always:
• Scrupulously check that cases have been properly closed after inspection.
• Carefully remove all dust from the case surface.
• Do not put gaskets, sealing fluids or other products between case and cover, but only use a very thin layer of vaseline or
siliconic grease. The siliconic grease layer acts as an antioxidant as well as guarantees the protection grade indicated on
the cases’ tags (e. g. IP 55).
• Take the greatest care so as to prevent cables from being trampled on or tampered with, maintain festoon lines, which
should be checked often, always in good conditions, with cable suspension trolleys sliding smoothly on the track to prevent
cables from being torn or damaged.
• Wire ropes of lifting equipment must be assiduously checked and replaced if showing even the slightest damage. Please
note that breakage of strands induced by jerks generates sparks.
• In addition all mechanical members (supports, wheels, buffers, joints, shafts) must be carefully and frequently checked so
as to eliminate possible causes of friction (the wheel-rims for example) and the resulting danger of over-heating.
• Brakes also must be constantly checked so as to prevent disks and shoes from being used when badly worn out.
All explosion-proof equipment must be used with the utmost care so as to avoid countercurrents and repeated starts.
During load preparation carefully plan harnessing points and the relevant fastenings and hoist slowly so as to prevent ropes from
sliding over hooks and to avoid friction or breakage.
Markings, as well as the certificate of conformity, are issued by an officially recognized laboratory, after it has run all the required tests
and inspections on the member’s prototype. (E.g. CESI, Ineris).