F 3335 (0622)
248
Stranded wires must be provided with wire end ferrules. The terminals must be suitable for
clamping the wire cross section.
The applicable regulations and standards have to be complied with, especially:
• DIN EN 60079-14 (VDE 0165, Part 1)
• EN 50 014 (VDE 0170/0171, Part 1)
• EN 50 020 (VDE 0170/0171, Part 7)
2.4 System start-up
Before the first system start-up, an Ex-expert has to check whether the system has been cor-
rectly installed, especially the supply voltage connections and the connections of the intrinsi-
cally safe circuits.
2.5 Maintenance
In case of a failure, the defective module must be replaced with the same type or with another
approved type.
Any repair work must only be carried out by the manufacturer!
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