For applications in cellar or garage, where cable generally run across the surface of the wall, Electrical Flexible Conduit is greatest. In a cellar, metal conduit will provide essential protection against rats . To be able to run these metallic conduits throughout turns, you might have to use a conduit bender, conduit couplings, offset elbows and fittings. These electrical metallic conduits might be made from aluminum or steel. For all those industrial or commercial applications in which the environment is moist or moist using aluminum conduit are a fantastic idea, as aluminum doesn't rust.
Liquid Tight Non-Metallic Flexible Conduit, Type LFNC-B is a raceway of circular cross section with a smooth PVC inner surface and an integral reinforcing member within the conduit wall. Liquid-tight Flexible Nonmetallic Conduit (LNFC) is designed to be used in wet, dry or oily locations and is flame resistant. They are suitable for industrial and commercial applications, indoor or outdoor locations. These may be used in a pool, spa or air conditioning and HVAC units.
Liquid Tight Flexible Metal Conduit – As the name suggests liquid-tight conduit is preferred for applications where a high degree of moisture exists. These are most suitable for water treatment plants, paper mills, bridges and petro-chemical facilities. A liquid-tight flexible metal conduit is covered by a plastic waterproof coating.