What kind of protection is required for terminal harnesses?

I. Terminal harness need to do those protection measures? The maintenance of the terminal harness needs to consider the following aspects, one is to select the data of the harness itself, the second is to maintain the wire contacts in the harness, and the third is to maintain the hole terminals in the harness. Harness data selection: Harnesses are generally copper Doree flexible wire and silver-plated wire. In most cases, the surface of the copper wire is coated with a thin layer of high conductivity silver to improve the conductive function. It is important to select the appropriate wire diameter or cross-section based on the limiting current of the wire. In addition to the electronic wire diameter, the environment and function in which the harness is located should also be considered. For example, the engine working environment is harsh, high temperature environment, corrosive gases and liquids are more, so the selection of wires need to be resistant to high temperature, corrosion, friction and vibration. Wire types are complex, different countries have different classifications, different points of attention, and different manufacturing standards. Maintenance of wire connectors in the wire harness: The connection point between wires and wires in the wire harness is called the wire harness connector. Due to the need for effective methods, connectors are usually found in instrument harnesses, on-board harnesses, cabin harnesses, and air conditioning harnesses. After the general joints are connected, the wire core copper wires are exposed and simply oxidized, and the multiple joints are wrapped in the wiring harness, which simply forms the connection between the joints and the connectors, resulting in a short circuit of the wiring, and in severe cases, causing the phenomenon of automobile combustion. Therefore, the wiring harness joints must be maintained with data with good insulation function. Applied to different working environments of the joint wrapping data is also different, PVC tape is generally used for harness connectors that are less affected by the environment, such as instrumentation harnesses, ceiling harnesses, body harnesses, air-conditioning harnesses and so on. The joints of the front cabin harness and engine harness are generally wrapped with double-layer heat shrink tubing, which is waterproof, high temperature resistant and abrasion resistant, but the cost is slightly higher than that of adhesive tape.

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