Siemens SIPROCESS GA700 Compact Operating Instructions page 171

Unprotected cable ends
Danger of explosion through unprotected cable ends in hazardous areas.
• Protect unused cable ends in accordance with IEC/EN 60079-14.
Improper laying of shielded cables
Danger of explosion through compensating currents between hazardous area and the non-
hazardous area.
• Only ground shielded cables that run into the hazardous area at one end.
• If grounding is required at both ends, use an equipotential bonding conductor.
Incorrect selection of type of protection
Explosion hazard
This device is approved for several types of protection. You select one type of protection.
Incorrect use can lead to an explosion when used later.
• Connect the device in accordance with the selected type of protection.
• On the nameplate, immediately make permanently unrecognizable the types of
Protection for use in Zone 2
Operation of the device without protection can lead to injury and/or material damage and
environmental damage.
• Equip the device including electrical connections and front plate with suitable protection
Connecting/disconnecting signal cables
The following generally applies for devices in type of protection "non sparking":
• De-energize the device before plugging/removing signal cable plugs.
Any exceptions are noted in the corresponding certificate.
Devices in explosion-proof design
Compact Operating Instructions, 11/2019, A5E35134047-04
WARNING
WARNING
WARNING
protection that are not used.
CAUTION
for use in Zone 2 which meets the required IP degree of protection and the mechanical
degree of protection.
CAUTION
Connecting
5.2 Electrical connections
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