Understanding of any one thing cannot be separated from the premise and environment of the event itself. What is the use environment of the socket? What is the purpose of the socket?　The sockets commonly referred to are mobile sockets or fixed sockets for household and similar purposes. This type of socket is "suitable for use in an ambient temperature that usually does not exceed 35°C and occasionally reaches 40°C" (excerpted from the Chinese national standard GB2099.1-2008 "Household and similar plugs and sockets Part 1: General requirements"), this environment It is the main environment of common people's home life. This is the major premise and general environment for the use of socket products. Talking about safety without this premise will lose its practical significance.

Because household and similar sockets are not industrial sockets after all, nor are they explosion-proof sockets for hazardous locations (such as mines and aerospace). It is also not possible to use a lighter to ignite the socket, because the socket simply cannot be used in, and is not suitable for, the high temperature environment of nearly a thousand degrees Celsius similar to a lighter.　Furthermore, the mobile socket is for the extended use of the power source, which is actually equivalent to the extension of the wire or cable. How can it be required that the wire and cable withstand the high temperature of a lighter of nearly 1,000 degrees Celsius? From a technical point of view, it is not impossible to do it, but precious national resources will be wasted, there will be expensive prices, and it does not have much practical significance.