Today i will discuss the cable classification and specification of electrical cable. Type i, class a cable, special purpose, electrical, low tension 59 flexible strand pigtail. Low voltage cables we specialize in the manufacture and supply of low voltage electric cables, flexible or rigid, in copper or aluminium, with the most extensive range of polymers and. Free next day delivery available the electric cable company gb ltd. Today cable trays have become a necessary part of industrial and commercial construction by offering quick, economical and flexible solutions to these problems. The safe bending radius for an electric cable is limited by the flexibility of its.
Coaxial cable, an electrical cable comprising an inner conductor surrounded by a flexible, tubular insulating layer, coated or surrounded by a tubular conducting shield. How to use this guide the wire and cable types covered in this guide have been divided. Full range of sizes and types of electric cable and accessories. Electrical cable types coaxial cable used for radio frequency signals, for example in cable television distribution systems. If you fail to find the cable you need, please do not hesitate to get in touch with your contact in the sales department or our product manager. If you are interested in downloading the pdf version of this book, please visit. Medium high voltage cables pertain to cables used for electric power transmission at madium and high voltage usually from 1 to 33 kv are medium voltage cables and those over 50 kv are high voltage. Answer 2 the purpose of insulation covering the metal part of an electrical wire is to prevent accidental contact with other conductors of electricity, which might result in an unintentional electric. Learning about electrical wiring types, sizes, and.
Cable types, selection criteria and application guidelines for electrical and. Wire is a single electrical conductor, whereas a cable is a. Types of wiring systems and methods of electrical wiring. The terms wire and cable are sometimes used interchangeably, but theyre not quite the same thing. Types of electrical wires and cables the home depot. Electric power can be transmitted or distributed either by overhead transmission systems or by underground cables. The 6gauge wire is better for a feeding a sub panel, an electric range, or a double oven, depending on the. Power distribution cables sensitive control wiring telecommunication wiring optical cables cable tray materials. Common domestic electric cable types used in the uk. In my last post i talked about, what are cable insulation and various type of insulation. Communications cable directburied cable flexible cables. These cables are always developed under the most stringent international standards.
Standard semirigid connectors can be used with conformable cable. Low voltage power and control cables pertain to electrical cables that typically have a. Types of cables in electricity electrical engineering. Type ufb underground feeder cable has a broad range of usage as defined in article 340 of the national electrical code nec. Electrical wire and cable conductor types commonly used home wire and cable. We serve the marine, offshore and shipbuilding markets summit electric supply stocks a complete product offering for our marine, offshore, and shipbuilding partners. Electrical cable classification and specification an. Most house wiresthe wires that run from the service panel through walls and to. What are the different types of electrical power cables. In these cables each core is insulated with impregnated paper and provided with seperate lead sheaths.
Learn the basics of electrical wiring for the home, including wire and cable types, wire color codes and labeling, and essential wiring techniques. There are two different types of cables that are commonly used. Conformable cable is an alternative to semirigid or flexible cable. Types of heating cables selfregulating heating cables. Nonmetallicsheathed cable has two or more insulated conductors and usually a bare ground wire. Power cable catalogue aai, a powerflo technologies company. A wire is a conductor that carries a single current, while a cable is two or more. Classification of underground cables the classification of underground cables can be done on the basis of several. An electrical cable, or power cable, is used to transmit electrical power.
Some networking professionals use the term patch cable to refer to any kind of straightthrough network cable used for a temporary purpose. Coax, twisted pair, and fiber optic types of patch. Cable type key for harmonized, international cables. This type of cable can easily flex, and it is designed to handle lowlevel voltages. Metalclad, or mc, wire cable is housed in a spiral metal casing, usually aluminum, that contains a live, ground and neutral wire. Electric breakdown types of breakdown failure of a material due to the application of a voltage stress called the dielectric strength expressed as kvmm or vmil electric breakdown occurs when the. Low voltage cables we specialize in the manufacture and supply of low voltage electric cables, flexible or rigid, in copper or aluminium, with the most extensive range of polymers and protectors.
When wiring a house, there are many types wire to choose from, some copper, others aluminum, some rated for outdoors, others indoors. Table 1 building wires and cables, including some industrial cables. Youll learn what each wire color means, how to differentiate types of conduit, and much more. Nm cable is made of three or more wires wrapped inside a flexible plastic jacket, or sheathing. Types normal temperature rating crosslinked polyethylene. Moving forward, we must understand various types of underground cables available to us. Cable trays are capable of supporting all types of wiring. The ul category code for each wire and cable category is identified in tables 1, 2, and 3 of this marking guide. Introduction to network cables and network cable types. Various degrees of screening are used according to the cable type and application. The various types of cable are also designated by how many. Metallic sheathed cable or armored cable, ac, or bx multicore cable consist of more than. Type nm cable, as it is often referred to, is sold in precut lengths like 50, 100, 250, and 1,000 spools.
Wiring a process of connecting various accessories for distribution of electrical energy from suppliers meter board to home appliances such. Type mc armored cable is sheathed in spiral metal, but because of its expense it is not commonly used for interior applications. Cables electric cable the electric cable company gb ltd. How to use this guide the wire and cable types covered in this guide have been divided into three tables as follows.
Electric breakdown types of breakdown failure of a material due to the application of a voltage stress called the dielectric strength expressed as kvmm or vmil electric breakdown occurs when the applied voltage can no longer be maintained across the material in a stable fashion without excessive flow of current and physical disruption. Domestic electric cable is usually available to british standard bs 6004. Conductor shield 15 with no conductor shield, electric field lines are concentrated, creating high stress points at the conductorinsulation interface. Values given are averages for the cable types and range of conductor sizes considered. Understanding electrical cable and wire better homes.
Twinlead this type of cable is a flat twowire line. There are several different types of cables ranging from cables used in construction and the erection of suspended bridges to those that can transmit electricity and other telecommunication. Cable type choose the highest value of all relevant construction features during. Types of cable installations in electrical network photo by fajar hidayat at flickr installing power cables there are a variety of ways to install power distribution cables.
Single cable from time to time this name is used for wire submersible cable. The types of cables basically decided based on the voltage level for which it is manufactured and material used for the insulation such as paper,cotton,rubber etc. We can supply you with the right sizes, types, and quantities of product you. Wire and cable is to be of a type suitable for the. Electrical cables provide connection and allow power stations, wired computer networks, televisions, telephones and other. It is used for most interior circuits, such as those for outlets, switches, light fixtures, and appliances. Wire is a single electrical conductor, whereas a cable is a group of. The national electrical code nec and local building codes regulate the types of wire and cable that can be used in specific electrical applications, as well as the manner of installation. These cables have a center conductor of various types of metallic braid.
Electrical wire and cable conductors types the spruce. Wiring cable for the home has varying sizes, or gauges, specific to the type of circuit they are being used for. From unshielded power or control cable used in areas not prone to interference, e. Learn the basics of nm cable to choose the right type for your next electrical project. More often than not, the terms wire and cable are used to describe the same thing, but they are actually quite different. An electrical cable is an assembly of one or more wires running side by side or bundled, which.