H38x/EN GL/D11 Global Documentation
Page 8/53
DS Agile H38x
2.2 Symbols
For safety reasons the following symbols which may be used on the equipment or referred to
in the equipment documentation, should be understood before it is installed or
commissioned.
Caution: refer to equipment documentation
Caution: risk of electric shock
Protective Conductor (*Earth) terminal
Functional/Protective Conductor
(*Earth) terminal
Note: This symbol may also be used
for a Protective Conductor
(Earth) terminal if that terminal
is part of a terminal block or
sub-assembly e.g. power
supply.
*NOTE: THE TERM EARTH USED THROUGHOUT THIS TECHNICAL
MANUAL IS THE DIRECT EQUIVALENT OF THE NORTH
AMERICAN TERM GROUND.
2.3 Installing, commissioning and servicing
Equipment connections
Personnel undertaking installation, commissioning or servicing work for this
equipment should be aware of the correct working procedures to ensure safety.
The equipment documentation should be consulted before installing,
commissioning, or servicing the equipment.
Terminals exposed during installation, commissioning and maintenance may
present a hazardous voltage unless the equipment is electrically isolated.
Any disassembly of the equipment may expose parts at hazardous voltage, also
electronic parts may be damaged if suitable electrostatic voltage discharge (ESD)
precautions are not taken.
If there is unlocked access to the rear of the equipment, care should be taken by
all personnel to avoid electric shock or energy hazards.
The equipment must be connected in accordance with the appropriate connection
diagram.
Protection Class I Equipment
- Before energizing the equipment it must be earthed using the protective
conductor terminal, if provided, or the appropriate termination of the
supply plug in the case of plug connected equipment.
- The protective conductor (earth) connection must not be removed since
the protection against electric shock provided by the equipment would be
lost.
- When the protective (earth) conductor terminal (PCT) is also used to
terminate cable screens, etc., it is essential that the integrity of the
protective (earth) conductor is checked after the addition or removal of
such functional earth connections. For M4 stud PCTs the integrity of the
protective (earth) connections should be ensured by use of a locknut or
similar.
The recommended minimum protective conductor (earth) wire size is 2.5 mm²
(3.3 mm² for North America) unless otherwise stated in the technical data section
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