Looking to purchase the best flexible metal conduit? Here are some advices and extra details helping you to make the best choice.
There are strict regulations in dealing with the fill factor. A cross-sectional area of the conductors inserted would be measured and the code would determine the percent of conduit which could be filled. A conduit can never be filled 100 percent as it is not safe. The code has determined how wires and bundles of wires can safely run through a given flexible conduit. The table does not address any difference in high or low voltage cables so you can apply the table for both uses. Have this information readily available when shopping for conduits.
Flexible metal conduit or FMC, is a helically-wound flexible metal electrical wiring conduit, often made using aluminum such as the ALFlex™ conduit shown here. Flexible metallic electrical conduit is used principally in commercial and industrial construction world wide. In residential applications you may find FMC used to connect an electric oven or electric cooktop. This conduit is also sold as LFMC or liquid-tight flexible metal conduit. See more info at Stainless steel flex conduit.
Electrical metallic tubing, or EMT, is the most common type of conduit for exposed interior installations, such as in a basement or an unfinished garage or workshop. It is the lightest and thinnest of the rigid metal conduit types and comes in a few different diameters; 1/2-inch is the most standard size for household circuits. EMT is also called “thin-wall” and is relatively easy to bend with a tool called a conduit bender. EMT is permitted by the National Electrical Code (NEC) for dry and wet locations but requires special watertight fittings and connectors in wet locations. With proper installation, EMT raceway can serve as a circuit ground path and be used in place of a separate ground wire running inside the conduit.
The usage of Flexible Cable Conduit is a practical process to be certain the electric wires installed in the home or office receive proper protection. The flexible kind of conduit will be the easiest to use in comparison with alternatives like rigid plastic or metal. The flexible conduit has the down-side of not being so strong and gives less protection. But, for the do-it-yourself enthusiast working in the home, the flexible material is usually favored due to its simplicity.
Electrical nonmetallic tubing (ENT) is flexible corrugated plastic tubing that is moisture-resistant and flame-retardant. It is easy to bend and installs with snap-lock or glued plastic fittings. Unlike EMT, non-metallic tubing cannot installed in exposed locations, so it is commonly used inside walls. In addition to installation in standard wood- or metal-frame walls, ENT can be installed inside concrete block structures and can be covered with concrete. Due to the blue color of one common brand of this conduit, ENT is nicknamed “smurf tube,” after the Smurfs cartoon characters.
CorrugatedConduit.com is a leading supplier of flexible conduit located in Kowloon, China. We have 15 years cooperating qualified manufacturer in mainland. Because of our good quality control management and large volume we are able to sell you the best flexible conduit at competitive prices. Source: https://corrugatedconduit.com/.