1. Imiphezulu edibeneyo yobungqina bokudubula ayiphumelelanga ngenxa yemicimbi yokulungiswa kwebholithi, kubandakanywa neemeko apho iibholiti zingekho okanye ziqiniswe ngokwaneleyo.
2. Ukungathotyelwa kwemilinganiselo yobungqina bokudubula, njengezithuba ezingafanelekanga okanye uburhabaxa obunganelanga kumphezulu odibeneyo.
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.