What type of conduit is used in underground applications?
Safety is an important consideration when working with electrical circuits and systems. Contractors must take all necessary precautions to reduce or even eliminate the risk of electrocution, whether these systems are installed or in use. Using conduits in these applications is the best way to eliminate these risks. There are several types of conduits used in structural and building materials. Especially for underground applications, it is important to use the right type of conduit. So what types of conduit are available for these applications?
metal conduit
These conduits have been around for a long time and are usually made of steel or aluminum. They are being phased out in favor of alternatives such as PVC and fiberglass.
Hard metal conduits are made of coated steel. They offer good protection, but their weight and thickness make them expensive and difficult to handle. Also, all joints require threads, making wire installation difficult.
Although not used underground, electrical metal tubing is a lightweight, bendable option for indoor applications. These conduits are used where there is little risk of damage.
Flexible metal conduits are made of interlocking helically coiled metal strips. It can be bent, but the thick walls make it very difficult to install and use.
fiberglass conduit
Fiberglass conduit has gained popularity over the years because it does not corrode, is affordable, easy to handle, and is resistant to temperature changes, moisture, and chemicals. is being PVC alternative to rigid conduit that are buried underground.
Fiberglass is non-conductive and provides excellent protection for all electrical installations. Additionally, these conduits have a very low coefficient of friction, making it easy to route wires.
PVC
PVC conduit is the lightest and least expensive conduit option. Provides excellent protection as it is impervious to electricity. It also comes with couplings, connectors and fittings for easy assembly. Join PVC Conduit Uses PVC glue.
However, it has a serious flaw in that it cannot withstand blows and pressure well. Under these conditions cracks can form and water can get inside and cause a short circuit.
Additionally, it does not work well in extreme temperature locations. It cannot be installed where the temperature is below 20 degrees or above 140 degrees Fahrenheit.
The second major drawback is that they are flammable and produce toxic fumes when ignited.
High Density Polyethylene (HDPE) Conduit
HDPE conduit is easy to install, strong and flexible.They provide excellent protection and are fiber optic cable Not damaged. It comes with reels that are tens or hundreds of feet long so you can cut it to the length you need. This means that no screws or joints are required during installation.
Each of the above options has advantages and disadvantages, but we recommend fiberglass and discourage the use of metal conduit.With fiberglass conduit, fiberglass performs well regardless of conditions. so you don’t have to worry about damage, installation or even environmental conditions.
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What type of conduit is used in underground applications?
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