FRAGOR-probatio luminaria necessario IMPERVIUS.
Principium flameproof (inclusum) CREPITUS-probatio luminum est ignitionem recludere ab vaporibus explosivis. Earum casingae non sunt omnino signatae et hiatus habent. Hi hiatus partes agunt magnae in explosione praeventionis; as the flamma passes through these narrow spaces, it encounters resistance and heat dissipation, reducing the heat to levels insufficient to ignite explosives. For requirements that demand both explosion-proof and IMPERVIUS facultatem, ensure the casing’s protection rating is specified as IP65 or IP66.