Stahl 8146/03, Operating Instructions Manual

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137193 / 8146620300
2014-06-26·BA00·III·en·05
Mounting and Installation
11
Control and Distribution Systems
Series 8146/5
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7.3.1 Electrical Connection
• The information given in chapter "Technical Data" must be observed.
• The conductor must be connected carefully.
• The conductor insulation must reach to the clamping units.
• Do not damage the conductor (nicking) when stripping it.
• Make sure that the maximum permissible conductor temperatures and the maximum
permissible surface temperature are not exceeded by selecting suitable electric lines
and means of running them.
• To avoid accumulation of moisture and soiling inside the switchgear combination,
the electrical installation has to be performed under clean and dry ambient conditions.
• Avoid mechanical damage to the conductor insulation due to rubbing against
sharp-edged metal parts.
Connection to the mains
• Open the enclosure (see chapter "Mounting/dismounting, operating position").
• Guide the connection lines into the connection chamber using the cable glands.
• Lay the connecting wires in the terminal compartment in such a way that the
permissible bending radii do not drop below the minimum.
• Connect the conductors according to the enclosed documents (e.g. wiring diagrams).
• Connect the protective conductor.
• If necessary, remove loose metal chips, dirt and traces of moisture from the enclosure.
• Carefully close the enclosure after completing the work.
DANGER
Use of cable glands without strain relief!
Explosion protection is impaired!
• Lead cables and conductors securely.
• If the cables are laid loosely, use only cable glands approved for
this type of cable laying.
WARNING
Danger due to live components!
Risk of severe injuries!
• All connections and wiring must be disconnected from the power
supply.
• Secure the connections against unauthorized switching.
If core end sleeves are used, they must be fitted with a suitable tool.
To prevent condensation in the enclosure, we recommend using a breather,
for example Type 8162 by R. STAHL Schaltgeräte GmbH.