1. Fuskokin haɗin gwiwa masu hana fashewa sun gaza saboda al'amurra tare da gyaran kulle, gami da al'amuran da suka ɓace ko ba su da isasshen ƙarfi.
2. Rashin bin ka'idojin fashe-hujja, kamar raƙuman da ba daidai ba ko rashin isassun ƙarancin ƙasa a saman haɗin gwiwa.
3. Inadequacy in explosion-proof enclosure entry devices arises when rubber components and cable sizes do not meet specified standards.
4. Shell integrity compromised due to cracks leads to a failure in maintaining explosion-proof qualities.