Household distribution box is also commonly known as lighting box or strong electric box, Distribution Box he belongs to the end of the household electricity protection device, into the terminal connected to the outlet side of the meter, the outlet side to connect our home electrical. Distribution Box It is to protect the safety of our last security. Common models for the PZ-30-type lighting box.
PZ-30 series distribution box rated current 100A generally by the leakage protector, disconnector, fuse, high-segment type small circuit breaker (also known as micro-off) and other components in accordance with the terminal electrical device. It has anti-shock, anti-short circuit, anti-overload, Distribution Box anti-leakage and other protection devices. In the choice of home distribution box type must first understand two things:
A: The size of the meter off the end of the micro-cut, usually 63 An. As the home distribution box is linked to the meter box outlet side, so we choose PZ-30 when his total road control does not exceed 63
2: Calculate the use of household appliances through the current, Distribution Box reasonable distribution of branch circuit control circuit current. Usually we use home lighting with 2.5 square lead with 16A micro-off due to air conditioning and water heater power is relatively large selection of 20A to 25A micro-break and 4 square wire!
The main role of household distribution box The role of household distribution box is to cut off and connect the power, the effective control of each of the electricity lines, Distribution Box to achieve the purpose of safe use of electricity. Household use for the indoor control distribution box, its structure is generally composed of leakage switchgear and metering equipment.
Home power distribution box working principle power main gate - "leakage protector -" fuse these three units are linked in sequence, the 220V of the electricity received to the distribution box on the main gate above, and then the electricity through the distribution Box of the power of the main gate, Distribution Box into the leakage protector, and then the last through the leakage protection device into the fuse, through the fuse separation of two power output.
1, zero line color to use blue.
2, lighting and socket circuit generally use 2.5mm2 wire, Distribution Box each wire connected to the number of open space shall not be greater than 3. Air conditioning circuit generally use 2.5mm2 or 4.0mm2 wire, a wire with an empty open.
3, between the different phase of the zero line shall not be shared, such as by A match the first yellow wire connected to the two 16A lighting open, Distribution Box then the A phase with empty open line can only be equipped with the two open , With the end directly connected to the zero line terminal.
4, the total open space inside the box and the gap between the general open left, distribution box outlet generally go right.
5, the box wiring to be smooth without pattern phenomenon, Distribution Box the wire should be tied with plastic cable ties, cable ties to be appropriate, the spacing should be uniform.
6, wire bending should be consistent, and shall not have a dead bend, Distribution Box to prevent damage to the wire insulation and internal copper core.