There are three main types of electrical joints, also known as splices. What are the different types of electrical wires answers. How to select and properly use wire grover electric and. Allowable wire and cable types and sizes are specified according to the circuit operating voltage and electric current capability, with further restrictions on the. There are a variety of kinds of splices and joints in wire. What are the different electrical joints and splices. Taps, splices and joints electrical motor control wirings. It is suitable for service where there is no mechanical stress when wires are to be connected in an outlet box, switch, or conduit fitting.
The electrical wiring system in most homes is created with nonmetallic sheathed wire nm. In this type of wire the conductor is not tinned and the conductor is covered with three braids of fibrous yarn and saturated with water proof compound. Not using the correct type of electrical joint can. What is the purpose of having this insulation covering the metal wire. This helps to clean the surfaces being soldered and prevent oxidization of the hot solder. The cast resin system provides the electrical insulation, mechanical protection and moisture imperviousness to the joint. A circular mil is the area of a wire one mil in diameter. How to select and properly use wire grover electric. Knowing how to join electrical wires together is essential for both building and repairing circuits.
Types of taps, splices and joints of conductor rat tail joints are used to join conductors in outlet boxes or when fixture leads are connected through conductors. It is an important component of overhead and underground electrical transmission and distribution systems. However, if you meant wire as in conductor used for electrics then there are other choices. Rat tail or pig tail this kind of joint is commonly used to join two or more conductors inside the junction box. If youre planning any electrical project, learning the basics of wiring materials and installation is the best place to start. See article 300 and 30015 of the nec for additional general wiring information.
It is also called loom wire, loomex or romex trade names or just plain building wire. These joints are designed for compression connection, mechanical connectors or soldering of cable conductors. Depending upon on the types of splices, joints types of wire splices, joints and taps western union short tie. These include three main types of wire splices, soldering and other devices, such as wire nuts, screw terminals and crimp connectors. If you are referring to wire ropes then there are quite a few types of splice and joint that can be used. Name the two types of insulation commonly used for noninsulated splices and terminal lugs. The figure shows a western union splice, but other types of splices work. The national electrical code nec and local building codes regulate the manner of installation and the types of wires and cables for various electrical. The western union splice, the tap splice and the fixture splice. The mechanical strength of joints shall conform to the requirements of ss 424 12 41 and ssen 50341.
Electrical wiring is an electrical installation of cabling and associated devices such as switches, distribution boards, sockets, and light fittings in a structure wiring is subject to safety standards for design and installation. Wires form the foundation of a circuit and joining them together is an essential part of making a circuit work. A tap splice, also called a tap joint, is used to connect a conductor to a running wire. For instance, if the cable lists 122 wg, it means there are two insulated 12gauge wires a black and a white wire, plus a ground wire. Soldering 2016 4 flux for electrical soldering both solder wire and solder paste contain flux. The western union splice connects two conductors together and is particularly useful in repairing a broken wire. When you working with electronic equipment or with electrical wiring, it may from time to time become necessary to splice or join wires together. An electrical cable, or power cable, is used to transmit electrical power. Wiring a process of connecting various accessories for distribution of electrical energy from suppliers meter board to home appliances such as lamps, fans and other domestic appliances is known as electrical wiring can be.
Types of electrical joints electrical joints proper. The joints are made by skinning about 2 inches, the end of the conductor is to be joined. The two main types of electrical wire are made from copper and aluminium. How many cores are used in a cable for the transmission of voltages upto 66 kv. In the north american electrical industry, conductors larger than 40 awg are generally identified by the area in thousands of circular mils kcmil, where 1 kcmil 0. This is a type of branch joint connecting a smalldiameter wire to the. Splices are used to connect two wires for the purpose of carrying either electrical current or a network signal. The soldering can act as an extra securing method and also prevents corrosion in the joint. Proper joint of electric wire three different types of electrical. The common types of wire splices are the western union splice, tap splice, staggered splice, fixture splice and rattail joint splice. This wire count does not, however, include the noninsulated wire that is used as a ground wire.
About 19% of these are terminals, 1% are cable glands, and 0% are power cables. Electrical joints types of electrical joints proper. Learning about electrical wiring types, sizes, and. It is the predominant reference for construction electrical work of all types.
There are many types of electrical cables that differ in configuration, size and performance. Electrical shock occurs when the body becomes part of the electric circuit, either when an individual comes in contact with both wires of an electrical circuit, one wire of an energized circuit and the ground, or a metallic part that has become energized by contact with an electrical conductor. Types of wiring systems and methods of electrical wiring. Common electrical wire splices and joints basics about. It can be run through holes drilled in the center of. It also discusses various soldering techniques that will assist you in mastering the basic soldering skills. In the power electrical business, there are 1 solder silver solder and tape. If the label says 123, this is a threeconductor, 12gauge cable with a bare copper ground wire included. Now wrap the end of the wire through the loop you just made. The choice of conductor depends on the cost and efficiency. Conductor is a physical medium to carry electrical energy form one place to other. The chapter ends with a discussion of the procedure to be followed when you lace wire bundles within electrical and electronic equipment. Question 1 most electrical wire is covered in a rubber or plastic coating called insulation. This is a type of branch joint connecting a thin wire for branch line to the.
This will serve as your tool in performing actual wiring installation. About 26% of these are terminals, 15% are connectors. Wire splices and joints electrical connector soldering. Electrical cables provide connection and allow power stations, wired computer networks, televisions, telephones and other electricitypowered devices to work. Take the connecting wire and wrap it once around the running wire. When working with electronic equipment or with electrical wiring, it may from time to time become necessary to splice or join wires together. As a student in electrical installation and maintenance you should acquire the important knowledge and skills in wire splices and joints and should be familiar with the actual application of every splice and joint. The following are the common electrical wire splices and joints.
In this video you will get the procedure for properly joint the electric wire. Cleat wiring methods of electrical wiring systems w. Splices, wire joints, pconn wire connectors 230 ryan way. Primary electrical insulation for all wire and cable joints and repairs. The branch wire is stripped of about 3 inches of insulation. We can supply you with the right sizes, types, and quantities of product you need to keep you on schedule and your management happy.
It is advisable to understand the popular uses of the most common types of wire used in residential, farm, and small. The nec contains standards regarding the installation of electrical power circuits primarily, but also communications and control circuitry. Common wire splices and joints wire electrical wiring. Pdf optimized and practical electrical joints for corc type hts. Forms a protective jacket excellent abrasion resistance for high voltage cable joints and. In the case of household wiring, the conductor itself is usually copper or aluminum or coppersheathed aluminum, and is either a solid metal conductor or stranded wire. What is electrical wiring different types of electrical wiring systems. Mseal kastex joints and terminations for lv cables are based on a cast resin system. Joint wire definition of joint wire by merriamwebster. Understanding basic wiring terminology and identifying the most common types of wire and cable will help when investigating wiring problems and when choosing the wiring for new installation and remodeling projects. How to select and properly use wire wire is designed to tolerate specific conditions and to do only those jobs for which it is intended.
The one thing that all good electronic joints have in common is that they create a gastight contact between the two wires, between the wires and any bridging material like solder, or between the wires and the terminal material. Joining electrical power cables can be as simple as twisting the wires. A wide variety of types of electrical joints options are available to you, such as type. It is suitable for service where there is no mechanical stress when wires are to be connected in an outlet box, switch, or conduit fitting ysplice. Answer 2 the purpose of insulation covering the metal part of an electrical wire is to prevent accidental contact. The fixture joint is used to connect a smalldiameter wire, such as in a lighting. To create a rattail joint, first strip the insulation off the ends of the conductors to be joined. The composition of the flux will vary depending on whether it is in a paste or wire, leaded or unleaded solder.
Splices and joints in solid wire should also be covered with electrical tape for safety. Pdf within cern the development of rebcocorc conductor on round core type cables is pursued in view of possible application in. This chapter is designed to be used as a guide in the assembly and preventive maintenance of efficient electrical connections for power circuits. Electrical wire and cable conductors types the spruce. Splices and joints the following are the common electrical wire splices and joints rat tail or pig tail this kind of joint is commonly used to join two or more conductors inside the junction box. A wide variety of types of wire joints options are available to. Electrical joints types of electrical joints proper joint of electric.
An efficient connection being defined as one which exhibits minimum resistance, both at initial. The main wire, to which the branch wire is to be tapped, has about 1 inch of insulation removed. Wire types and sizes basic electricity pdf version. The copper wires are used mostly in installations up to 30. By ensuring that delegates are conversant with the full range of joints, accessories and terminations in use today, we aim to provide a comprehensive update on.
1448 1115 308 48 820 290 305 456 1527 545 1460 169 404 305 1390 255 1595 439 675 917 1556 1165 1307 869 177 289 580 825 324 709 446 1454 997 506 558 601 755 432 425 1497 1383