what is UL certificate and why is it important?
You’ve probably seen the little “UL” inside a circle on a host of products you use on a daily basis but might never have given it much thought. UL stands for Underwriters Laboratories. They are one of only a handful of com......
What are the characteristics of custom high-quality wire harness
The wire harness belongs to the weak electric cable, which is the internal connecting wire of the electrical equipment. At present, the main wire harness on the market mainly includes UL standards. The wire harness is used for the connecti......
Automotive high voltage harness and electric vehicle charging harness
As we all know, in the field of new energy vehicle charging piles, wire harnesses can generally be divided into two categories: 1. The wiring harness represented by the electric vehicle interior, the packaged high voltage harness, an......
Introduction of Wire harness Pressure Welding Technology
There are diffusion welding, high-frequency welding, cold pressure welding and ultrasonic welding. 1. Diffusion welding The welding method of bonding the welded parts tightly and keeping them at a certain temperature and press......
Application of nylon hose in automobile brake pipe
Because of its easy assembly, cleanness, anti-aging and corrosion resistance, nylon tubes are widely used by various auto manufacturers around the world. The second automaker has applied nylon 11 pressure pipes on several models, such as th......
Heat shrinkable tube shrinkage principle
In the past, we have introduced a lot of different aspects of heat shrinkable tubes, in order to let our customers better understand and understand the heat shrinkable tube, but in essence, once the principle of heat shrinkable tube is ment......
How to improve the protection of the high-frequency interface of automotive wiring harness
In order to meet the specification frequency level, the automotive wiring harness test equipment must meet the set accuracy level. This allows them to be tested at their respective levels, and each "level" usually contains a series of singl......
The importance of the LED wire harness for LED power supply and drive circuit protection
With the continuous development of LED technology, domestic LED applications have also matured, from indicator lights, signal lights, display screens, landscape lighting, to indoor and outdoor lighting, reminding everyone, when using LED pr......
Introduction to RS-232C Interface
The D-sub connector on the computer is mostly used in the RS-232C interface. RS-232C basic characteristics • Connector: DB25 and DB9 (D type) connectors are used. DB25 is mostly used for early devices, and DB9 is mostly used now......
wire harness fault detection judgment and replacement
1. Detection and judgment of electric wire bundle burnout failure The burnt wire bundles are all suddenly occurring, and the burning speed is very fast. In the burned circuit, there is generally no safety device. The rule of burnt out the e......
Installation precautions for automotive air conditioning wiring harness
The importance of automotive air conditioning wiring harnesses for vehicles is unquestionable, so the wiring harness must have strictly adhered to the corresponding process specifications. 1. The harness connector must be firmly inserted to......
Why are electronic connectors with metal plating?
Electronic connectors, often called terminals, are very important components in the electronic components profession, and those working in electronic engineering can also find that most terminals are coated with a very special coating. Then......
What is a flame retardant cable?
The flame-retardant cable refers to the cable that is burned under the specified test conditions. After the test fire source is removed, the flame spreads only within the limited range, and the residual flame or residual burn can be self-ex......
What inspections should be carried out on the acceptance of the wiring harness
(1) The wire material in the wire harness should conform to the regulations, check the drawings one by one, whether the length of the wire exceeds the tolerance, whether the connector pin is correct, whether the packing material is firm, th......
What issues should I pay attention to when selecting wire harness materials?
The wire harness is a wiring component for connecting various electrical equipment in the circuit and is composed of an insulating sheath, a terminal, a wire, and an insulating wrapping material. The quality and service life of the wire har......