A type, b type, ac type leakage respectively what is the meaning of the meaning?

A-type, B-type, AC-type earth leakage circuit breaker (earth leakage protection switch current transformer ZT) are what meaning meaning, functional application differences are? A type, B type, AC type earth leakage circuit breaker (earth leakage protection switch current transformer) are what meaning meaning, functional application differences are? A type leakage protector and AC type leakage protector is the main difference: AC type only on the AC leakage protection, DC pulsating leakage can not act, can not play a protective role; and A type in addition to the protection of AC leakage protection but also on the DC pulsating leakage protection. Therefore, A type has more comprehensive and safety than AC type for leakage protection. DC pulsating leakage caused by human electrocution, damage to electrical equipment, electrical fires and other occurrences, resulting in casualties and property losses that should not have occurred, has caused the government departments and the industry attaches great importance to. Vigorously promote the use of A-type leakage protector is imperative. A type (DC pulsation type) leakage protector is a western country must use the product, and in the domestic use is not high, AC type (common type) use is more common, the main reason is: security awareness issues and price issues, if the effective solution to the above problem, the A-type leakage protector of the market space is very huge, the prospect of a bright future. With the rapid development of China's economy and society, the people's living standards continue to improve, quality of life awareness, safety awareness, life awareness gradually strengthened, the requirements of higher security products are becoming more mature, coupled with the industry and government departments to pay attention to and advocate, security awareness is not difficult to solve the problem, just a matter of time.