| The presence of gases or fumes in hazardous environments requires a system to block the passage of explosive vapors. Accordingly, the compressed MgO insulation in Pyrotenax® wiring cables stops the passage of helium gas at 2000 psi. Factory fabricated Pyrotenax MI wiring units do not require gas path seals, have a smaller profile than wire and conduit methods, and provide a cost-effective alternative to satisfying NEC Article 501-5 requirements. As an alternative, VITALink MC/NCC polymeric aluminum armored cable, when used with explosion proof glands provide an effective wiring system in hazardous environments. |


