General information about Plug and Socket
There are many types of plug in the commercial market, which can be categorized into 3 types according to their function.
1. Plug : Electricity receiver It is normally assembly with every electrical apparatus and appliances, tools and equipment. All of them could be operated just in time whenever connected to electricity source. They can also classified into 2 kinds:
1.1 2-pin plug: N pole for outflow current and L pole for inflow current.
1.2 3-pin plug: The other added pin is ground wire. It prevents users from contacted with harm high voltage when electrical current fails or shorted circuit. It is commonly used with 110V – 250V electricity current according to international standard.
2. Socket: It’s regularly built-in on the wall, ceiling or other places that demand the use of electricity. However, if the area in which electricity required is further away from power supply, the user will temporary needs extension cable. Nevertheless, socket needs to be designed to cooperate with type of plug for safety usages.

DCF 1.0