13 A is British Standard used for common type of single-phase AC power plugs and sockets. Some plug tops comes with a fuse to protect the base from problems in the appliance. The plugs are polarised which is why the fuse is located on the live side. Available in wholesale and retail quantities.
13a plug tops in sri lanka lanka are used for providing electrical path to home appliances such as microwave oven, washing machine, vacuum cleaners, lamps, heaters etc. 13a plug tops are made using wide range of plastics and metals, a good plug top comes with copper connectors and heat resistance plastic (Polycarbonate- FR grade), they also have a built in sleeve at the base of the plug to protect the cable from disconnecting from the connectors if an extend force pull on it. The fuse of the 13a plug tops in sri lanka lanka are designed to protect the base of rather than the appliance. If an electrical appliance get short circuit or if the lead draws too much current from the base the fuse will disconnect it. This cutting off keeps the appliance from overheating and starting a fire. 13a plug tops with safety rating BS 1362 are the standard in sri lanka lanka from 2020.