Installation, connection, commissioning, removal
3.2 Installation, removal and repairs in hazardous areas
SIMATIC CP 4163-1
26
Operating Instructions, 12/2022, C79000-G8976-C588-01
3.2
Installation, removal and repairs in hazardous areas
WARNING
Impermissible accessories and spare parts
Risk of explosion in hazardous areas
•
Only use original accessories and original spare parts.
•
Observe all relevant installation and safety instructions described in the manuals for the
device or supplied with the accessories or spare parts.
WARNING
Unsuitable cables or connectors
Risk of explosion in hazardous areas
•
Only use connectors that meet the requirements of the relevant type of protection.
•
If necessary, tighten the connector screw connections, device fastening screws,
grounding screws, etc. according to the specified torques.
•
Close unused cable openings for electrical connections.
•
Check the cables for a tight fit after installation.
WARNING
Improper installation of shielded cables
There is a risk of explosion due to equalizing currents between the hazardous area and the
non-hazardous area.
•
Ground shielded cables that cross hazardous areas at one end only.
•
Lay a potential equalization conductor when grounding at both ends.
WARNING
Lack of equipotential bonding
If there is no equipotential bonding in hazardous areas, there is a risk of explosion due to
equalizing current or ignition sparks.
•
Ensure that equipotential bonding is available for the device.
WARNING
Unprotected cable ends
There is a risk of explosion due to unprotected cable ends in hazardous areas.
•
Protect unused cable ends according to IEC/EN 60079-14.
