What is the purpose of the outer covering on a liquid-tight flexible metal conduit?

The outer covering on a liquid-tight flexible metal conduit serves the vital purpose of creating a moisture seal. This covering is specifically designed to keep moisture, dust, and other contaminants from penetrating the conduit and affecting the electrical conductors inside. By providing a reliable barrier against environmental factors, it ensures that the integrity of the electrical system is maintained, reducing the risk of short circuits and electrical failures.

Additionally, the moisture seal enhances safety by preventing potential hazards associated with electrical equipment in wet or humid conditions. This is particularly important in applications such as outdoor installations, industrial environments, or areas where exposure to water or chemicals is likely. The protective outer layer effectively helps to ensure that the conduit fulfills its role in safeguarding the electrical wiring from moisture-related issues.