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Installation, connection, commissioning, removal
3.2 Installation, removal and repairs in hazardous areas
3.2
Installation, removal and repairs in hazardous areas
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
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,
• Close unused cable openings for electrical connections.
• Check the cables for a tight fit after installation.
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.
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.
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.
22
WARNING
device or supplied with the accessories or spare parts.
WARNING
grounding screws, etc. according to the specified torques.
WARNING
WARNING
WARNING
Operating Instructions, 12/2022, C79000-G8976-C589-01
SIMATIC CP 4163-5
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