This plug and socket test gauge is mainly used to test and inspect whether the structure and size of plugs and sockets conform to EN 50075:1990 Figure 4. And the mainly application industries is electronics, electrical appliances, plugs and sockets and other similar areas.
標準：
BS EN 50075 “Flat non-rewirable two-pole plugs, 2,5 A 250 V, with cord, for the connection of class II-equipment for household and similar purposes” Figure 4
Gauge for Checking Impossibility of Single-pole Insertion of Plugs Into Socket-outlets without Position Rack
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