In the selection of aviation plugs, we often use various performance parameters as the basis and reference for our selection. Choosing an aviation plug that meets your own requirements is an important factor in determining whether the equipment can work normally and stably for a long time. The performance parameters of aviation plugs mainly include electrical performance parameters, mechanical performance parameters and environmental performance parameters. 1. Electrical performance parameters: Electrical properties mainly include rated current, working voltage, withstand voltage, contact resistance, insulation resistance, etc. 1. Rated current: Generally, it refers to the current value that the contact part of the aviation plug can allow for a long time. The selection of the rated current should be based on the current input and output load of its own equipment, and then the rated current of the aviation plug should be selected according to the current load of the wire. The first parameter to consider is that the rated current is proportional to the diameter of the contact body. If the contact body is made of copper alloy, the electrical conductivity is relatively smaller than that of pure copper, so it cannot be calculated according to the rated current standard of the wire in the electrical standard. It needs to be divided according to different materials. Calculated with a certain coefficient. The specific coefficients will be introduced in detail later. The general selection principle is: rated current of aviation plug > rated current of wire > current load of equipment. 2. Working voltage: The working voltage is another key indicator of the aviation plug, which refers to the ability of the contacts between the contacts and between the contacts and the shell to withstand the rated voltage of the equipment. Note that the aviation plug is called "working voltage" rather than "rated voltage". Because the aviation plug only acts as a conductor, there is basically no power generation itself. In order to ensure that the aviation plug can work safely and reliably under the working voltage, the aviation plug will be designed and produced according to a voltage value higher than a certain value of the working voltage. This parameter value is the working withstand voltage (or higher working voltage) of the aviation plug. This value is generally will also be marked. The general selection principle is: the working voltage of the aviation plug > the rated voltage of the equipment.
