• Select suitable tool, measuring equipment and, if
necessary, personal safety equipment;
• Evaluation of measuring results;
• Selection of electrical installation material for safe-
guarding shut-off conditions;
• IP protection types;
• Installation of electrical installation material;
• Type of supply network (TN system, IT system, TT
system) and the resulting connecting conditions
(classical zero balancing, protective earthing, re-
quired additional measures etc.).
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Incorrect installation can put your own life at
risk and the lives of other users of the electrical
system.
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.
It is absolutely essential to ensure that all
connecting cables are laid so that they are
physically separate from cables carrying mains
voltage (e.g. in separate cable ducts or wiring
conduits). Alternatively, it is possible to use
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