电源系统（国外英文资料）.docVIP

电源系统（国外英文资料） Read 346 comments 0: large and medium sized Single phase leakage protector Home electricity, 60 Ann. Single phase leakage protector, incoming line how to connect, is left zero right fire, or left fire right zero? Answer: national industry standard power supply connection is: left zero right fire, switch socket also is same. Also look at the sign: L is the fire line; N is zero. When the installation is on the upper side of the power supply, lower side load. [home where you need to install a leak protector] There is no need to bring an electric leakage protection. Light does not need to pass through the leakage protection switch. The socket must pass through the leakage protection switch. Bring the family to install the leakage switch, it is recommended that electrical access except lighting lamps and lanterns, because when the electric towing line and outlet electric leakage fault or people get an electric shock to trip protection. If connect lamps and lanterns also is connected, black one is in, lamps and lanterns is in most circumstance the person is untouchable, even if lamps and lanterns leak electricity to the person, also can not be fatal. [about leakage protective circuit breakers] If there is any line (220V) of the leakage protection circuit breaker, if there is any difference, what is the difference? What is the specific application? Low voltage leakage protective circuit breaker has two kinds: single phase and three phase. First of all, it is used for civilian purposes. Inside there is a wire and a zero wire terminal, the zero line is N; The fire line is labeled L. When the leakage occurs, the electrical flow of the two wires will be unbalanced, and the circuit breaker will jump. The third phase is usually used for industrial production. There are four lines, and we often say three lines four, three of them and one zero, and the zero is marked by N! Only the zero line is 220V for any line of fire, no matter which one is 220V. The two wire combi