73022344 o
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Electrical equipment for potentially explosive gas atmospheres
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Operation of electrical systems
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Testing and maintaining electrical systems in potentially explosive gas
atmospheres
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Erection of power installations with rated voltages below 1000 V – tests – initial
tests
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German Ordinance on Industrial Safety and Health
ATTENTION
The place of use and installation must have a functioning, effective lightning
protection system to protect personnel and equipment.
The device must be connected by personnel authorized by the manufacturer in
accordance with the instructions of this document.
:
CAUTION
CASE MUST BE EARTHED!
The housing and mounting base must be included in the local earthing system
and must not be opened or disconnect from erth in a potentially explosive
atmosphere. The earth connection on the device (together with other connections
if necessary) must be used for this purpose
CAUTION
This device must not be operated without an equipotential bonding system/cable
or earthing or if this connection has been intentionally broken. No earth potential
shift must take place.
ATTENTION
The 24 V DC power supply (including mains fluctuations of ± 15%) must have a
safe electrical isolation. This may be provided, for example, by Quint-PS-100-
240AC / Quint-PS-24DC/24DC/10 / Siemens SITOP / Siemens Logo or
equivalent power supply units.
Every device must be operated with a separate power supply. This is protected
externally by a fuse or a miniature circuit breaker.
ATTENTION
Supply and communication cables (not supplied) which are shielded and comply
with local installation regulations must be used.
Use cables or wires and cable entries suitable at least up to 70°C (158°F / 343 K)
ambient temperature.
Utilisez des câbles ou des fils et des entrées de câbles adaptés à une température
ambiante d'au moins 70°C (158°F / 343 K).
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