Nisa Haɗin Haɗin Wuta:
Hakanan ana kiransa tsayin haɗin gwiwa, yana nuna mafi ƙarancin tsayin hanya daga ciki zuwa waje na wani shinge mai hana harshen wuta a kan haɗin haɗin fashewa.. Wannan girman yana da mahimmanci yayin da yake wakiltar hanya mafi guntu inda aka ƙara yawan ɓarkewar makamashi daga fashewa.
Tazarar Haɗin Kan Wuta:
Wannan kalmar tana nufin rata tsakanin flanges a wurin da jikin yadi ya hadu da murfinsa. Gabaɗaya ana kiyaye shi a ƙasa da 0.2mm, wannan gibin yana da mahimmanci don cimma mafi kyau hana wuta tasiri, taimakawa wajen rage yawan zafin jiki da makamashi.
Roughness Surface Mai hana Flameproof:
A lokacin ƙirƙira abubuwan haɗin haɗin gwiwar shingen wuta, dole ne a ba da hankali ga rashin ƙarfi na saman. Don kayan lantarki masu hana wuta, roughness na wadannan haɗin gwiwa saman ba dole ba ne ya wuce 6.3mm.