Electrical conduit is a raceway used to house and protect electrical wires within a building or structure. From data centers to underground subways to ports and bridges, electrical conduit is an integral part of the modern world around us.
Depending on the application there are many different types available. The specified conduit for your project may be rigid or flexible and will offer varying degrees of protection from impact, corrosion, gases and vapors, moisture, fire, and even electromagnetic interference, depending on the needs of the installation environment. Environments that are wet, highly corrosive, or hazardous typically require specialty conduit.
Electrical conduit may also be permitted per the National Electrical Code (NEC) for use in direct encasement (or direct burial) in concrete, which is common in commercial applications. The ability to field bend conduit, as well as its allowable support spacings will impact how many fittings (couplings, elbows, connectors) are needed for a project and also have a direct impact on cost.
Rigid Metal Conduit (RMC):
RMC is composed of heavyweight galvanized steel and installed with threaded fittings. Known for being very strong, RMC is unfortunately one of the more expensive electrical conduits when it comes to both materials and labor. Aluminum is another material used for RMC, and may have additional coating applied to better resist corrosion.
Galvanized Rigid Steel (GRC):
Approved for indoor and outdoor applications, GRC is made from steel and is traditionally found in industrial and commercial applications, GRC has been a long-time industry standard and benefits from impressive impact resistance, as well as UV-stability and the ability to protect from EMI (electromagnetic interference). Unfortunately, its heavy weight and poor field handling make GRC particularly expensive to install and it can be highly susceptible to corrosion. GRC’s conductivity makes it susceptible to fault conditions in which the conduit and wire may weld together.
Intermediate Metal Conduit (IMC):
Approved for the same applications as RMC, IMC is a steel conduit that is slightly lighter than RMC and rated for outdoor use. It can be more cost-effective than RMC, available threaded or unthreaded, and may or may not be coated. Compared to GRC and RMC, IMC has much thinner walls that can handle more wire fill but is more susceptible to kink. IMC only goes up to 4 inches in trade sizes, so it is significantly smaller than other conduits.
Electrical Metallic Tubing (EMT):
Thin-walled and unthreaded, EMT is typically made of coated steel and used in place of GRC in commercial and industrial applications, though it is commonly found in residential applications as well. It can also be made of aluminum and is approved for use in concrete but is not permitted to be installed where subject to physical damage. EMT is not able to offer the same level of protection as GRC. It is easily bent but can not be field threaded because of its thinness. Common trade sizes run from .5 inch to 1.5 inches.
Rigid Nonmetallic Conduit (RNC):
Non-metallic, unthreaded, smooth-walled tubing is available in multiple substrates including high-density polyethylene, PVC, and RTRC (fiberglass). The capabilities and specs vary by substrate but several forms of RNC are approved for underground or direct burial use.
RTRC Conduit:
Available in various wall thicknesses and threaded, RTRC (reinforced thermosetting resin conduit), or fiberglass conduit is created by tension-winding strands of fiberglass over a rotating mandrel, before impregnating the strands with resin and curing under high temperature, resulting in high flexural strength and high-temperature resistance. RTRC features the broadest range of corrosion resistance of all in-market conduit materials, as well as low burn-through, UV stability, superior temperature range (including excellent handling in low temperatures), and the ability to retain its original shape after impact. Its support distances are comparable with GRC, PVC-coated steel, and aluminum electrical conduit.
RTRC is significantly lighter in weight than traditional conduit materials, resulting in the lowest labor installation rates for most diameters per the National Electrical Contractors Association (NECA) Manual of Labor Units. In terms of raw material costs, it is one of the more affordable electrical conduit options. Phenolic RTRC meets NFPA 130 requirements and is suitable for speciality applications requiring low smoke, no flame, zero halogen, 2-hour fire-rated conduit for use in Class I Div 2 areas.
Fiberglass conduit elbows are the preferred electrical conduit for utility and data center projects for their low coefficient of friction, lack of burn-through and fault resistance.PVC Conduit:
Available in varying wall thicknesses and threaded, PVC is light and commonly used for applications requiring non-metal electrical conduit. PVC conduit is not recommended for use in direct sunlight due to poor UV stability. It is relatively easy to heat and field bend with the use of a hotbox conduit bender, but must be mounted to allow for expansion and contraction due to a high coefficient of thermal expansion, and may deform after installation in environments that are too hot. Traditionally PVC has been an inexpensive conduit, however, in recent years it has become more expensive and harder to source, due to ongoing supply chain issues. In these cases, American-made RTRC is often substituted.
Electrical Nonmetallic Tubing (ENT):
Thin-walled and corrugated, ENT (electrical nonmetallic tubing) is flame retardant but not fire rated. It is not approved for use in exposed locations but is commonly used inside walls or within concrete blocks. Known for its extreme flexibility ENT can be field bent by hand without requiring any special tools or the application of heat. ENT is available in PVC in trade sizes up to 2 inches. Its support spacing is limited to 3 feet and within 3 feet of terminations.
National Electrical Code (NEC) guidelines, local codes, and engineering specifications most often dictate which conduit to consider for use in a project. Although size and type are key aspects, there are many characteristics to consider when choosing an electrical conduit, including:
The correct conduit should:
For help selecting a conduit, reach out to an Electrical Sales Rep to learn more.
Electrical pipes are very crucial in terms of the safety of your building. Be it a commercial or residential apartment, house wiring is a very critical matter that needs special attention. You need to choose the best pipes for wiring in India in order to establish secured electrical lines. If you are not sure about electrical wiring pipe types, this blog will you to figure out the right selection of electrical pipes.
Electrical pipes and electrical wires are very crucial in terms of the safety of your building. Be it a commercial or residential apartment, house wiring is a very critical matter that needs special attention. You need to choose these best quality electric wires and the best electrical pipe for house wiring in India in order to establish secured electrical lines. If you are not sure about wires and cables pipes type, this blog will you figure out the right selection of electrical pipe.
The load calculation is the foremost important thing to gauge what is suitable for your house wiring. To determine the load, you need to make a list of the electrical appliances like an air conditioner, washing machine, microwave, dishwasher, hairdryers, etc., that you use in the home. Now check their capacities in watts and figure out the typical use in terms of their operating hours per day.
Now, in the end, define the number of days the appliance would be working and finally, multiply the three values and divide the balances by 1,000; it will let you estimate the Kilowatt-hours. Now, while doing so, do not forget to include the future installation you might be planning.
In the next step, you will move on to an electrical PVC conduit pipe; it is the second most significant part of the entire cabling system of your home. Mark each PowerPoint, electrical outlet, distribution board you want to include. This process typically comprises wall chiseling and placement of the conduit tubing.
PCV pipes are not only aesthetically appealing, but they also reduce the chance of electrocution. You can avail of various range of PVC pipes as per the specific need of the wiring.
If you want to repurpose the wiring for your house, color coding wires are the most crucial one. It allows to recognize or identify the cables long after repairing the model. Polycab Wires generally come in red, green, blue, black, and yellow. If you have an intricate wiring system, it is best to use a different color for a separate operation.
On the basis of your requirement, pass the wires through the ceiling; you need to make sure that the wires and tie together and give them with GA wire.
Earthing is a necessary part to safeguard the life of people living in the building. Electricity fall can lead to life-risking damage, so one should not avoid earthing. Let’s take an example where an electrical appliance in your building develops a potential fault; the current would travel down through the path of the earth. If you avoid earthing, you might lose the connection, and the out metal part of the washing machine would become live. And by simply touching the device, one could get a zest of electrical shock.
Choosing the best quality electric wire for the house will take a lot of research. Before choosing the wire we need to look into details of the wire such as conductor size, material, voltage, and color, etc…
Electrical wire is installed to ensure electricity is supplied properly through all the channels. The electrical cables run over the building within the walls, and the secondary function of the conduit pipe is to handle the aesthetic of the building. It protects the wires from any kind of hazard. Apart from the size of the cable, the type of electrical conduit pipes has to be installed and would also depend on the external environment.
For a residential apartment, an armored cable conduit is typically chosen for the safeguard of the building. It would protect the internal wires from a nail puncture.
PVC conduit: it is economically a great choice and also protects from water absorption from the damp wall. PVC conduits are generally used for the electric wire that runs below the ground or in an open environment.
Metal conduits are the best option for the basement, garage, or surface of any wall. You might need a conduit bender to fit the pipe in any space, be it aluminum or steel. For commercial or industrial applications, the aluminum conduit would be a perfect choice.
Liquid-tight flexible nonmetallic: LNFC is designed to be used in wet places, and it is entirely flame resistant. They are perfect for industrial and commercial wiring. It can be used in the pool, spa and air conditioning, and HAC unit.
Liquid-tight flexible metal conduit: it is designed to work in high degree or moisture-prone areas. They are most suitable for water treatment, bridges, paper mills, and petrochemical facilities. It also has a plastic waterproof coating that enables its capacity to sustain in moisture-laden areas.
Pvc conduit pipes are always rigid and strong enough to withstand construction works without doing damage to the wires. Vip Pvc conduit pipes -best conduit pipes for electrical wiring are best suited electrical pipes for house wiring, they have various properties like lightweight, flame retardant, high tensile strength, and maintenance-free.
Otherwise, you could go with precision PVC conduit pipes, Precision electrical PVC conduit pipes were made from especially unplasticized polyvinyl chloride to meet India and international marketing standards and markets. Properties like fast installation, corrosion resistance, and flame retardant making it the best electrical pipe for house wiring.
Other than Vip PVC conduit pipes and Precision PVC pipes you can rely on Anchor, Polycab, and Finolex cables online for the best electrical pipe for house wiring. And as well along with thinking of conduit pipes, it is also good to consider wires and cables,
Even after reading this article you couldn’t able to figure out which electrical PVC conduit pipe for your new home, We at Eleczo.com are always there for you to provide assistance in choosing the best electrical pipe for house wiring. For more information and inquiries kindly write us to sales@eleczo.com or give us a call at 080-41119871.
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