How to choose high-voltage ignition wires. Automotive high voltage wire

When choosing automobile high-voltage ignition wires, we recommend to take into account the insulation material and type of conductor.

2015-11-13 22:18:43 91

wiredistributed resistanceignition wiresinsulation materialsconductive corehigh voltage

the core

Depending on the type of conductive cores of high voltage cables are divided into three groups: A) Cables with copper conductor. This kind of automotive high-voltage ignition wires is the traditional and most simple. Represents carrying conductor of stranded copper wires (2), coated with an insulation layer (1). The resistance of such wires is minimal, in the order of 0.2 Ohm/m, and the level created during operation of the interference – significant. For this reason, wires with copper conductor obligatory set of interference suppression resistors. In) Wire with non-metallic conductive residential low distributed resistance is made up of core (3) made of linen thread, Kevlar or fiberglass impregnated with graphite. The core is enclosed in a protective shell (4) filled with metal from an electrically conductive plastic (ferroplasma), over which is drawn obuhivka (5) of metal wire. Due to the fact that wires of this type have a low distributed resistance of about 2 ohms/m, they need to install suppression devices. C) non-metallic Wire with a conductive core with a high (up to 40 ohms/m) distributed resistance does not require resistors. Their conductor (6) are made of polymers impregnated with a particulate solution of cotton yarn or fiberglass yarn with graphite coating. In most cases, the conductive core enclosed in non-metallic reinforcing braid, which is covered with an insulation layer (1).

insulation Material

As an inexpensive material for insulation of high-voltage wires often use polyvinyl chloride or a thermoplastic polymer of vinyl chloride – polyvinyl chloride. It is designed to work in temperatures from -20 to +1200 C. More reliable performance wires are able to provide them insulation elastomer made on the basis of diene monomer, propylene and ethylene copolymer. In addition to good dielectric properties, it has high resistance to corrosive liquids, wear-resistant and can operate in temperatures from -30 to +1800 C. The most expensive insulation material for high voltage wire – silicon. High resistance to temperature extremes (from -50 to +2500), excellent insulating properties and unlimited service life have made this inorganic polymer is an indispensable material in the production of insulation materials. Insulation high-voltage car ignition wires can be single layer and multilayer. Choosing high-voltage wires, it is recommended to give preference to models with a larger diameter cross section of the core based on the conductive silicone. They don't need the extra noise of the resistors, and indicators of current flow at high distributed resistance is the best. Good luck with your choice! Let the ignition system of your car is working smoothly, stably and flawlessly!

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