| 摘要 |
The invention relates to an installation for electrical power distribution in a building having an end user, such as domestic premises, a business, having a permanently installed electricity mains power supply which is operated at the normal mains voltage, for example 220 volts, having an electricity supply cable with a meter, distributor, overcurrent protection apparatuses, cables mounted on the surface and/or under the plaster, junction devices, plug sockets and switches, as well as a further electricity mains power supply which is operated at a low voltage, for example 60 volts or less.
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