(1) the multi-storey building low voltage power distribution design should meet the requirements of measuring, maintenance and management, power supply safe and reliable, lighting and power load should be divided into different distribution system.
(2) the determination of multi-storey residential low-voltage distribution system and the metering, should negotiate with local power supply department can adopt the following several ways:
A. unit total distribution box should be in the first floor, with a total scale.Layer distribution in a separate table by total distribution box distribution box appropriate USES its trunk to layer type distribution, layer distribution box adopts the radial power distribution to the users.
B. do not set a total scale unit, only in hierarchical distribution box set household table, its main distribution, regional distribution methods appropriate USES radial distribution.
C. household metering table all focused on the first floor meter asked, distribution feeder with radial distribution to each user.
(3) multilayer residential lighting measurement should be a home a table.For public channel, stair illumination measurement, when the power supply department charge to households can set the public watt-hour meter, such as total table to the floor is generally not another set table.
(4) other than multi-storey residential multilayer civil construction.For larger concentrated load or more important load, should from the transformer room on radial distribution for each layer distribution or distribution box distribution, appropriate USES tree type trunk or partition type way.
(5) the distribution scope of the each type trunk circuits should be in power load density, properties, maintenance and management, and fireproof partition condition into account.
(6) by the layer distribution or distribution box to the distribution of electric power distribution box, appropriate USES radial or with the combination of tree trunks.
(7) in the multilayer residential electricity meter should be installed separately.Other layers of civil building lighting and electrical load should also be measured respectively set table.
(8) multilayer single dormitory building, appropriate for each room, electricity power brownouts measures, on the system wiring should be considered.
