The Spruce / Margot Cavin Color coding is used both on the outer sheathing of bundled electrical cables and on the individual conduction wires within cables or inside the conduit. Understanding this color coding can help you identify what the wiring is used for and helps maintain consistency within an electrical system. Cable coloring relates to the size of the wires inside the cable and the cable's amperage rating. For example, white-sheathed NM cable is used for 15-amp circuits, while yellow NM cable is rated for 20-amp circuits. The coloring on individual conducting wires usually does not indicate a size or rating but rather the standard or preferred use of the wire. For example, black and red wires typically are used for current-carrying or "hot" connections, and white wires usually are grounded "neutral" conductors. Green-insulated wires and bare copper wires are used for grounding wires. Electrical wiring is the way of integrating cables and wires to interconnected equipment such as fuses, switches, sockets, lights, fans, and so on to the main distribution board, which is a specific structure attached to the utility pole that ensures a constant power supply. The electrical wiring system is done in accordance with a certain set of rules and regulations and some laws that are set by a specific organization. According to electrical laws and standards, electrical wiring must be done appropriately and safely. Suppose electrical wiring is done poorly or without following any standards, it can result in short circuits, electric shocks, device or appliance damage, or device malfunction, all of which reduce the hardware life. Before residential, commercial, or industrial wiring can be installed, a number of considerations must be taken into account. The type of building, structure of the ceiling, walls, and floors, wiring methods, and installation needs are all factors to be considered. Electrical wiring is an important feature of any structure, whether it is a residential structure (individual homes or flats), a large commercial structure (office buildings), or an industrial structure (factories). Lighting and other power circuits are wired in a variety of ways and systems. While choosing an electrical wiring system, there are a few things to be kept in mind:
Regardless of the type of wiring and wire used, the wiring system must be able to work well in conditions like mechanical wear and tear. Electrical wiring systems are usually determined by the type of wire used. The following are the electrical wiring methods that are regularly used in residential, commercial, industrial, and auditorium settings:
Cleat Wiring Cleat wire is a temporary wiring method that is not recommended for usage in the home. The cleat wiring technique has been retired out. The braided type compounded VIR or PVC type wires that are insulated for waterproofing are known as cleat wire. The wiring is generally attached to the walls or the ceiling with the aid of materials like, wood, porcelain and plastic. Advantages of cleat wiring
Disadvantages of Cleat Wiring
Casing and capping wiring systems were once common, but they are now considered obsolete due to the emergence of conduit and encased wiring systems. VIR or PVC cables, as well as any other approved insulated cables, are used in this sort of wiring. The cables were routed through the wooden casing enclosures. To accommodate VIR wires, the casing is made up of a strip of wood with lengthwise parallel grooves. The grooves were created to distinguish between polarities. The capping was used to cover the wires and cables that had been placed and fitted into the casing (also made of wood). Advantages of casing capping wiring
Disadvantages of casing capping wiring
The straight teak timber battens in this system are used to run insulated wires. The wooden battens are attached to the ceilings and walls with plugs and screws. To connect the cables to the battens, tinned brass link clips are utilized. To secure the clips to the battens, rust-resistant nails are utilized. This wiring installation is simpler and less expensive than other electrical wiring systems, and it also takes less time to complete. These are primarily used inside. In this form of wiring, Cabtyre Sheathed Wire (CTS) or Tough Rubber Sheathed Wire (TRS) is typically used as the electrical conductor. Advantages of batten wiring
Disadvantages of batten wiring
Conductors are insulated with VIR and coated with a lead aluminum alloy outer sheath comprising roughly 95 percent lead in this form of wire. The metal sheath shielded wires to protect them from mechanical damage, moisture, and corrosion caused by the surrounding environment. Advantages of Lead Sheath Wiring
Disadvantages of Lead Sheath Wiring
There are two types of Conduit Wiring.
Surface conduit wiring refers to conduits that are mounted on a roof or wall. In this wiring approach, holes are drilled into the wall surface at uniform intervals, and the conduit is subsequently fitted using rawl plugs. There are two types of materials are used for Surface Conduit Wiring, Metallic and Non-metallic Conduit wiring. In a metallic conduit wiring system, steel (material) is used and in Non-metallic, plastic pipes are used. 2. Concealed Conduit Wiring Concealed Conduit WiringConcealed conduit wiring is one that have the slots inside the plasters of the wall and are not visible in general. Thus, it can be concluded that the concealed conduits have conduits that run through the walls in structure like floors, walls, ceilings or tubes dedicated for wiring only. In places where the changes to the normal wiring are done frequently like in office environment or in factories, the concealed conduits are hanged through the ceilings or the walls with the aid of pins or hooks. It must be noted that conduits must be properly connected and earthed by a well trained professional. The most common types of conduit used are PVC (polyvinyl chloride). Advantages of conduit wiring
Disadvantages of conduit wiring
The topic Methods of wiring is basically studied and taught to the students in the below-mentioned courses:
There are some more applications of the topic, that are listed below:
Q1. Which are the methods of wiring? A. Cleat Wiring B. Casing and Capping Wiring C. Batten Wiring D. All of above Answer: D Explanation: The different methods of wiring are cleat wiring, casing and capping wiring, and batten wiring.
A. Casing and capping wiring B. Batten and cleat wiring C. Surface and concealed wiring D. None Answer: C Explanation: Conduit wiring has two types that are surface conduit and concealed conduit wiring.
A. Good quality of wires. B. The kind of load. C. The wiring system's safety. D. All of above Answer: D Explanation: These factors are more important for an electrical wiring system.
A. 90 B. 95 C. 85 D. 80 Answer: B Explanation: It is an alloy of lead aluminum that is 95% of lead and 5% of aluminum.
A. Metal and non-metal B. Ceramic C. Alloy D. None Answer: A Explanation: Metal and non-metallic conduit are used for surface conduit wiring systems. We've got you covered with step-by-step solutions to millions of textbook problems, subject matter experts on standby 24/7 when you're stumped, and more. Check out a sample electrical engineering Q&A solution here!*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers. |