Choosing Between Plastic Flexible Conduit and Metal Flexible Conduit
Electrical conduit systems provide a safe and convenient way to run wires through walls, floors and ceilings. They help to reduce the risk of electrocution, fire and other hazards by encasing the wires in protective plastic or metal coverings. Conduit systems also enable installers to route electrical wiring in curved or irregular paths that would be difficult or impossible to navigate using traditional wiring methods. When selecting a plastic flexible conduit for an installation, it's important to consider its material compatibility with the specific wire or cable types it will be protecting, as well as its bending radius and flexibility. Additionally, installers should be aware of local codes and regulations when choosing a conduit system for their project.
When evaluating different plastic and metal flexible conduit options, it's important to understand the unique requirements of each type. Both offer a variety of advantages and benefits that can be useful in numerous applications, but each is designed for a slightly different purpose.
Plastic flexible conduit starts as rigid polyvinyl chloride (PVC) and is treated with plasticizers to increase its pliability without compromising its other properties. This allows it to easily bend and twist around tight corners, obstructions and other obstacles during installations without requiring any specialized heat-shaping or fittings. It can also coil smoothly along complex wiring routes without breaking or sagging.
Other plastic flexible conduit features include high-density cores to help resist abrasion and cuts, and high-temperature resistance for use in hot or humid environments. It's also available in a range of diameters to suit multiple applications and installation locations. In addition, a number of jacket options are available to meet special needs, such as food grade, confined space and Halogen Free for hazardous environments.
Unlike plastic flexible conduit, metal flexible conduit is constructed from galvanized steel and has a heavier weight that makes it better able to withstand the rigors of outdoor installations and harsh working conditions. It is also more durable and less prone to corrosion than plastic conduit. In addition to its strength, metal FMC is also naturally EMI and RFI shielding, which helps safeguard sensitive electronics.
Both plastic and metal flexible conduit can be used in a wide variety of scenarios to protect electrical wiring, but it's important to select the correct option for each. When in doubt, always consult an electrician to help determine the best type of conduit for an installation and follow all applicable codes and regulations. With proper selection and installation, either type of flexible conduit can provide years of reliable protection for electrical wiring.