Shenhai Kuputika-Uchapupu
Izwi rokuti “waya ina” zvinoreva waya nhatu mhenyu uye imwe isina kwayakarerekera waya, yakanyorwa saA|B|C|N|, ine N inomiririra waya yepasi.
Iwo matatu mawaya mhenyu anofanirwa kuve akabatana nepamusoro pekupinda kweiyo main switch mubhokisi rekuparadzira-rinoputika., uye waya isina kwayakarerekera inofanirwa kubatanidzwa zvakananga kune yakasarudzika terminal bar isina fuse. Mamwe ese ma switch uye midziyo yemagetsi inofanirwa kuve waya kubva pazasi kubuda kweiyo main switch.