家用配电箱通常也叫做照明箱或强电箱，他属于家庭用电的末端保护装置，进线端连接到电度表的出线侧，出线端连接我们的家用电气。它是保护我们用电安全的最后一道保障。常用型号为PZ-30型照明箱。
The household distribution box is also known as the lighting box or the strong electric box. It belongs to the terminal protector of the household electricity. The access terminal is connected to the outlet side of the watt hour meter, and the outlet end connects to our household electric appliance. It is the last guarantee to protect the safety of our electricity. The commonly used model is PZ-30 type lighting box.
PZ-30系列配电箱额定电流100A一般由漏电保护器、隔离开关、熔断器、高分段式小型断路器（也叫微断）等组成的一种按照终端电器装置。它具有防触电，防短路，防过载，防漏电等多种保护装置。 在选择家用配电箱式一定要先了解两件事：
The rated current 100A of PZ-30 series distribution box is usually made up of leakage protector, isolating switch, fuse and high sectional miniature circuit breaker (also called micro break), etc., according to the terminal electrical device. It has a variety of protection devices, such as anti electric shock, short circuit protection, anti overload, anti leakage and so on. In the choice of household distribution box, we must know two things first:
一：电表出线端的微断大小，通常是63安。由于家用配电箱是链接电表箱出线侧的，因此我们在选择PZ-30的时候他的总路控制不超过63安
1: the size of the break at the end of the electric meter is usually 63. Since the home distribution box is linked to the outline of the meter box, we do not control more than 63 ambits when we choose the PZ-30.
二：计算好家用电器的使用通过电流，合理的分配控制支路电流的断路器。通常我们家用照明选用2.5平方导线配16A微断由于空调和热水器用电量比较大通常选用20A到25A微断和4平方导线！
Two: the calculation of the use of electrical appliances through the current, the reasonable distribution of the circuit breaker to control the branch current. Usually, we use 2.5 square wires with 16A micro - interruption for home lighting, which usually uses 20A to 25A micro - break and 4 square traverse because the power consumption of air conditioners and water heaters is large.