Automotive wires are the special wires used to connect various 12V electrical accessories in automobiles. Some of these accessories may include automotive relays, switch panels, and fuse blocks. Automotive wires are categorized into cross-linked and PVC wires depending on the type of insulation materials used during their manufacture. Let’s various types of automotive wires used in the automobile industry.
Brief Introduction to PVC and Cross-Linked Insulation
Following explanations will give a brief idea of PVC and cross-linked insulation wires.
• PVC: This term is used for cables that have polyvinyl chloride insulation. The PVC is heated and extruded through a die on the stranding.
• Cross-Linked: This term is used for cables that are cross-linked under heat and pressure for better insulation properties. The material is subjected to heat and pressure, and extruded
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These wires are not the regular wires used for household applications, but ones that are made to resist temperature, heat, vibration, and chemicals. Following are some of the popular types of automotive wires in use.
• Type GPT Wires, or Primary Wires: These are the most common types of wires available for purchase in the automotive stores. These wires have multistranded cores with flexible insulation, which makes them perfect for tight spaces. These wires have a recommended temperature range of -40 o C to 80°C. Although some wires have high rating of 105 °C. These wires can easily resist chemicals, oils, and acids.
Conductor: Bare Copper; Insulation: Polyvinylchloride (PVC);
• Type TWP (Thin Wall Thermoplastic) Wires: These wires are used in automotive applications that require minimal weight and small diameter. These wires are rated in the temperature range of -40°C to 105°C.
Conductor: Bare Copper; Insulation: Polyvinylchloride
...t cases, this section of wire can be replaced with a simple 2 wire T5 harness. The 2 wires goto the reverse light switch and the other 2 wires are connected with a jumper wire already on the harness. If you find out there are driveability problems, you may have to also connect the neutral switch on the tranny.
Knob and tube wiring was state-of-the-art up until around 1950. The main concerns with this old wiring method is overheating, deteriorating insulation, improper connections, and that it is not a grounded system. K&T wiring was ideal for when it was originally designed to hold modest currents. But nowadays the electrical demands for the average house are considerably greater. Sixty years ago t...
For the other material ASTM A216 Gr WCB same pressure of 16 Mpa is applied and the stress developed is approximately as similar to the connecting rod made with material of cast iron. Figure no. 9 indicates the maximum and minimum stress developed in connecting rod at small & big end. The equivalent stress maximum and minimum values are 71.347 MPa and 4.4955e-5 MPa respectively.
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PVC is classified as a thermoplastic, which can be re-shaped in the presence of heat. Situations where temperatures reach up to 160 degrees Celsius (melting point) would cause deformation to the PVC; this would be considered a
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platina contact wires'. The filament was made from a piece of carbonized thread. By New
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