conduit that passes from a classified location into an unclassified location requires the use of a(n) .

Sealing fittings hold a seal around the wire inside the conduit and connect sections of heavy-wall RMC and medium-wall IMC metal conduit to enclosures. They reduce the flow of gases and vapors and stop flames from spreading across the conduit system from one electrical installation to another.What does a sealing fitting serve?To prevent gases, vapors, or flames from spreading from one area of the conduit system to another, Sealing Fittings with PVC coating are used in conduit lines. This increases safety by reducing the risk for explosions.Gases, fumes, or flames cannot go from one section of a conduit system to another due to sealing fittings. In order to contain explosive pressure, they also prevent significant accumulations of ignitable gases or vapors.Explosions are kept from spreading through conduit systems and igniting the atmosphere outside thanks to sealoffs. They produce a physical barrier that reduces the flow of gases from freely moving through the conduit when correctly installed and filled with a sealing compound that is listed by UL.To learn more about Conduit refer to:https://brainly.com/question/28041462#SPJ4