brennenstuhl PD22B Notice D'utilisation page 7

*) Specialist knowledge required for the installation
The following specialist knowledge in particular is
required for the installation:
– The "5 safety rules" to be applied: activation;
securing against being switched on again;
determining that there is zero voltage; grounding
and shorting; covering or cordoning off neighbouring,
live parts
– Choice of suitable tools, measuring devices and, if
necessary, personal protective equipment
– Evaluation of measurement results
– Selection of electrical installation material to ensure
turn-off conditions
– IP protection types
– Installation of electrical installation material
– Type of supply network (TN system, IT system,
TT system) and the resulting connection conditions
(classic zeroing, protective earthing, necessary
additional measures, etc.).
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