Maintenance; Repair - Weidmuller Klippon STB Aviso Para Los Instaladores

Maintenance

Typical maintenance tasks are listed below:
• The gasket on increased safety enclosures should be checked for
damage and replace the enclosure if necessary. Check the terminal
blocks; any discolouration can be a sign that something is heating up and
that a potential risk is present.
• Cable glands and stopping plugs should be checked for tightness.

Repair

IEC 60079-19 gives guidance on the repair and overhaul of certified
equipment. It is not permissible for modifications and rework to be carried
out that could jeopardise the characteristics essential to explosion
protection (type of protection and temperature class). Rewiring of
installations is permissible if carried out by qualified and authorised
personnel.
Only the manufacturers' authorised parts can be used for replacements and
modifications. Failing to do so might invalidate the certificate. Repair work
on explosion-proof electrical equipment should only be carried out by the
manufacturer.
If it is necessary to remove the equipment for maintenance purposes, the
exposed conductors must be correctly terminated in an appropriate certified
enclosure, e.g. Ex ‚e', or isolated from all sources of supply and either
insulated or earthed.
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