HomeMatic HM-LC-BI1PBU-FM Installation And Operating Manual page 53

Incorrect installation also means that you are running
the risk of serious damage to property, e.g. because
of a fire. You may be personally liable in the event of
injuries or damage to property.
Contact an electrical installer!
Specialist knowledge required for installation:
The following specialist knowledge is particularly im-
portant during installation:
• The ‚5 safety rules' to be used:
Disconnect from mains; Safeguard from swit-
ching on again; Check that system is deenergi-
sed; Earth and short circuit; Cover or cordon off
neighbouring live parts;
• Select suitable tool, measuring equipment and, if
necessary, personal safety equipment;
• Evaluation of measuring results;
• Selection of electrical installation material for
safeguarding shut-off conditions;
• IP protection types;
• Installation of electrical installation material;
• Type of supply network (TN system, IT sys-
tem, TT system) and the resulting connecting
conditions (classical zero balancing, protective
earthing, required additional measures etc.).
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