Initial Commissioning - Weidmuller Klippon K Montagerichtlinien

Maintenance
Make sure you are in compliance with IEC / EN 60079-17 (especially the check list in
Table 2) and any other relevant national regulations that pertain to the maintenance
of electrical equipment in hazardous atmospheres. Working with live voltages is not
permitted without prior written approval from the facility operator. Typical maintenance
tasks are listed below:
• The gasket on increased safety enclosures should be checked for damage and
replace the enclosure if necessary.
• Terminals might have to be tightened.
• Any discoloration could indicate a rise in temperature and the development of a
potential hazard.
• Cable glands and stopping plugs should be checked for tightness.
All installed and assembled products must be maintained according to the supplier's
instructions and in accordance with legal and operational specifications.
Installation
The relevant standards must be taken into account during the installation (such as
IEC/EN 60079-14). The regulations are not mainly determined based on the installation
instructions from the empty enclosure. Instead, they are derived based on the
components used in the enclosure and the connection elements such as cable glands.
The built-in components must comply with the "increased safety" ignition protection
requirements (EN/IEC 60079-7). The installation must comply with the requirements
from RL 94/9/EC and the IECEx scheme and their related standards (such as
EN/IEC 60079). Other types of ignition protection are not permitted.

Initial commissioning

An approval must be obtained for the fully assembled enclosure including all built-in
components. All regional rules and regulations from the country where the installation
and operation will take place must also be observed.
Usage
Consult with Weidmüller to determine the chemical resistance of the enclosure before
using it in a potentially corrosive atmosphere.
17