Choosing the right wire or cable is important, Let VGCABLE introduce different types of wires with their specification & electrical wire types chart.
1.What are types of wires?
Types of Wires – There are mainly 5 types of wire: .
Triplex Wires : Triplex wires are usually used in single-phase service drop conductors, between the power pole and weather heads. They are composed of two insulated aluminum wires wrapped with a third bare wire which is used as a common neutral. The neutral is usually of a smaller gauge and grounded at both the electric meter and the transformer.
Main Feeder Wires : Main power feeder wires are the wires that connect the service weather head to the house. They’re made with stranded or solid THHN wire and the cable installed is 25% more than the load required.
Panel Feed Wires : Panel feed cables are generally black insulated THHN wire. These are used to power the main junction box and the circuit breaker panels. Just like main power feeder wires, the cables should be rated for 25% more than the actual load.
Non-Metallic Sheathed Wires : Non-metallic sheath wire, or Romex, is used in most homes and has 2-3 conductors, each with plastic insulation, and a bare ground wire. The individual wires are covered with another layer of non-metallic sheathing. Since it’s relatively cheaper and available in ratings for 15, 20 and 20 amps, this type is preferred for in-house wiring.
Single Strand Wires : Single strand wire also uses THHN wire, though there are other variants. Each wire is separate and multiple wires can be drawn together through a pipe easily. Single strand wires are the most popular choice for layouts that use pipes to contain wires.
2.different types of wires with their specification
Heat Resistant Flame Retardant (HRFR) with Lifeline Plus S3, as the name suggests, is a flame retardant as well as heat resistant wire that can withstand up to 85 degrees Celsius temperature. These flexible cables are easy to install and provide superior insulation capabilities including carrying of high current while ensuring better electrical and mechanical performance.
Flame Retardant Low Smoke and Halogen (FR-LSH) are made from specially formulated PVC polymers that restrict the emission of any type of toxic gas and smoke making it safe, reliable, fire resistant, lead resistant, lead-free and a non-toxic alternative for wires. This non-toxic cable is made with the safety and well-being of customers in mind. FR-LSH wires come in 5 different categories for different applications offering superior protection and human safety.
Havells HFFR wires provide security, safety, reliability, fire- and flame-retardant properties, are lead-free and non-toxic in composition. Their biggest plus is the fact that in the unlikely event of a fire, the cable will reduce its spread. The HFFR is also halogen-free ensuring that anyone trapped in a fire is not intoxicated and have better chances of survival.
Flame Retardant (FR) offers superior insulation and flame-retardant properties ensure optimum electrical and mechanical performance at higher temperatures. These wires have high insulation resistance, are eco-friendly, and are anti- termite and -rodent. They are available in 13 different sizes and 7 different colors.
Multicore Round Cables
The Havells Multicore Round Cable is an eco-friendly choice offering good insulation, flexibility, and best-in-class all round protection. It can be used in all electrically operated machines and equipment such as air conditioners, refrigerators, motors, etc. Human safety is one of its key features.
Flat Submersible Cables
The three-core flat submersible cable features a sturdy construction and can be used for submersible pumps and motors. It has a 101% copper conductivity making it ideal for pumps requiring a safe wire with durability and longevity of continued operation and minimal breakdowns.
Telecom Switchboard Cables
The Telecom Switchboard cables with copper wiring are best suited for reliable operation with high solder ability and twist withstanding capability for proper termination. They also offer good elongation and conform to TEC regulations.
CATV CO Axial Cables
Havells CATV CO axial cables are used in TV cables connecting with dish antennas. It is a wire braided cable that comes in three different categories.
Havells also manufactures LAN cables for internet and computer connectivity. These cables meet global standards for optimum performance.
With the growing use of CCTVs all around us, Havells manufactures CCTV cables that ensure high-quality video streaming and long-lasting performance.
High-quality music requires cables with wires with minimal distortion, signal loss and interference. Havells speaker cables offer durable construction in addition to high-quality transmission of music signals for maximum clarity.
3.electrical wire types chart
An electrical cable also has different types, color and application as its determining factors. Here’s a brief about cables that you need to understand to determine the correct cable for your home.
Types of Electrical Cables – There are more than 20 different types of cables available today, designed for applications ranging from transmission to heavy industrial use. Some of the most commonly-used ones include:.
Non-Metallic Sheathed Cable : These cables are also known as non-metallic building wire or NM cables. They feature a flexible plastic jacket with two to four wires (TECK cables are covered with thermoplastic insulation) and a bare wire for grounding. Special varieties of this cable are used for underground or outdoor use, but NM-B and NM-C non-metallic sheathed cables are the most common form of indoor residential cabling.
Underground Feeder Cable : These cables are quite similar to NM cables, but instead of each wire being individually wrapped in thermoplastic, wires are grouped together and embedded in the flexible material. Available in a variety of gauge sizes, UF cables are often used for outdoor lighting and in-ground applications. Their high water-resistance makes them ideal for damp areas like gardens as well as open-to-air lamps, pumps, etc.
Metallic Sheathed Cable : Also known as armored or BX cables, metal-sheathed cables are often used to supply mains electricity or for large appliances. They feature three plain stranded copper wires (one wire for the current, one grounding wire and one neutral wire) that are insulated with cross-linked polyethylene, PVC bedding and a black PVC sheathing. BX cables with steel wire sheathing are often used for outdoor applications and high-stress installations.
Multi-Conductor Cable : This is a cable type that is commonly used in homes, since it is simple to use and well-insulated. Multi-conductor or multi-core (MC) cables feature more than one conductor, each of which is insulated individually. In addition, an outer insulation layer is added for extra security. Different varieties are used in industries, like the audio multicore ‘snake cable’ used in the music industry.
Coaxial Cable : A coaxial (sometimes heliax) cable features a tubular insulating layer that protects an inner conductor which is further surrounded by a tubular conducting shield, and might also feature an outer sheath for extra insulation. Called ‘coaxial’ since the two inner shields share the same geometric axis, these cables are normally used for carrying television signals and connecting video equipment.
Unshielded Twisted Pair Cable : Like the name suggests, this type consists of two wires that are twisted together. The individual wires are not insulated, which makes this cable perfect for signal transmission and video applications. Since they are more affordable than coaxial or optical fiber cables, UTP cables are often used in telephones, security cameras and data networks. For indoor use, UTP cables with copper wires or solid copper cores are a popular choice, since they are flexible and can be easily bent for in-wall installation.
Ribbon Cable : Ribbon cables are often used in computers and peripherals, with various conducting wires that run parallel to each other on a flat plane, leading to a visual resemblance to flat ribbons. These cables are quite flexible and can only handle low voltage applications.
Direct-Buried Cable : Also known as DBCs, these cables are specially-designed coaxial or bundled fiber-optic cables, which do not require any added sheathing, insulation or piping before being buried underground. They feature a heavy metal core with many layers of banded metal sheathing, heavy rubber coverings, shock-absorbing gel and waterproof wrapped thread-fortified tape. High tolerance to temperature changes, moisture and other environmental factors makes them a popular choice for transmission or communication requirements.
Twin-Lead Cable : These are flat two-wire cables that are used for transmission between an antenna and receiver, like TV and radio.
Twinaxial Cable : This is a variant of coaxial cables, which features two inner conductors instead of one and is used for very-short-range high-speed signals.
Paired Cable : With two individually insulated conductors, this cable is normally used in DC or low-frequency AC applications.
Twisted Pair : This cable is similar to paired cables, but the inner insulated wires are twisted or intertwined.