Üç pin, bir elektrik fişinin üç ucunu ifade eder 13. Bu fişler, topraklama amacıyla kullanılır 15.
Topraklama, elektriksel bir arıza durumunda elektriğin evin içinde değil, dışarıda toprağa yönlendirilmesi anlamına gelir 15. Bu, yangın riskini azaltmak için güvenli bir önlemdir 1.
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[```1```](https://www.techwalla.com/articles/difference-three-pin-electrical-plugs_)[```3```](https://passmyexams.co.uk/GCSE/physics/structure-of-three-3-pin-plug.html). Bu fişler, **topraklama** amacıyla kullanılır [```1```](https://www.techwalla.com/articles/difference-three-pin-electrical-plugs_)[```5```](https://dev.myscienceschool.org/why-are-there-three-pins-in-a-plug/).\n\n**Topraklama**, elektriksel bir arıza durumunda elektriğin evin içinde değil, dışarıda toprağa yönlendirilmesi anlamına gelir [```1```](https://www.techwalla.com/articles/difference-three-pin-electrical-plugs_)[```5```](https://dev.myscienceschool.org/why-are-there-three-pins-in-a-plug/). 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