Colorful is not a beautiful fuse can not easily replace

With the development of technology, more and more electronic devices have appeared on our trucks. These advanced equipments have greatly improved the technical level of the vehicle and made the truck more efficient, safe and comfortable. However, a large number of electronic devices also cause the circuit of the truck to be extremely complicated. The complicated circuit + bumpy use environment makes it easy to cause short circuit, overload, and other failures. If it is not protected, it can easily cause serious faults such as overheating of the line and burning of equipment. So in order to protect these devices, our trucks are equipped with fuse power fuses without exception.

Colorful is not a beautiful fuse can not easily replace

Now, the fuse-type power fuses on trucks have basically adopted the chip type plug-in structure, which is very convenient to use and replace, but in fact there are a lot of exquisite replacement of these fuses, and can not be replaced at will, otherwise it is likely to cause equipment Burned, or even caused a serious accident such as a fire, today I will give you a brief introduction to the relevant knowledge of the fuse.

● One common use of two types of vehicle fuses

Colorful is not a beautiful fuse can not easily replace

Wound fuse

At present, the fuses for trucks are basically only one type of chip, but in fact, in the early years, there were other kinds of fuses on the truck, such as winding type. This type of fuse is also a plug-in structure, except that the fuse is exposed. When the fuse is broken, the top of the fuse is usually left with a spare wire. You can choose the number of windings according to the power of the device. The more the number of turns, the more the current is blown. Big. Because this type of fuse needs manual operation, the fuse current is not well controlled and has already been eliminated.

Colorful is not a beautiful fuse can not easily replace

Glass tube fuse

In addition to winding, there is a common glass tube fuse in household appliances. The Yuejin 131 model used this type of fuse. Since this type of fuse is made of glass, it is easy to break and is very inconvenient to carry. It has already been eliminated.

Colorful is not a beautiful fuse can not easily replace

Insert type fuse

The most commonly used is the insert type fuse, which uses a plug-in structure, the shell is made of plastic material, and the color is rich. In fact, its mystery is in color, and the colorful colors are not to win the female driver's preference, but represent different melting currents. The current international common standards are: 2A gray, 3A purple, 4A pink, 5A orange, 7.5A brown, 10A red, 15A blue, 20A yellow, 25A clear and colorless, 30A green, and 40A dark orange.

Colorful is not a beautiful fuse can not easily replace

The 2A-4A's fuses are rarely used in trucks. The common models are between 5A-30A. The distribution panel cover of the truck will generally mark the fuse current and the corresponding electrical appliance in the corresponding position. When the fuse fuse fault occurs, it must be used according to the instructions to use the corresponding current fuse, do not use the larger fuse current. Replace the fuse, otherwise it may cause the circuit to burn out or even cause a fire.

Colorful is not a beautiful fuse can not easily replace

However, when the fuse is blown without a spare product of the same type, temporarily unused electrical fuses can be pulled out as a temporary replacement, but it should be noted that only models with smaller fuse currents can be used, and larger fuse currents cannot be used. The fuses come instead.

If there is an immediate re-melt after replacing the new fuse, it proves that the circuit system of the vehicle has failed. At this point should stop continuing to replace the new fuse, immediately go to the auto repair shop to find the cause of the malfunction. It is absolutely forbidden to connect the circuit by directly connecting the jump fuse, otherwise it will cause a serious fire accident.

● Postscript

The fuse is small, but it pays a lot of attention. The same is true for other inconspicuous components on trucks. It seems to be simple, but in fact it is of great importance. When we carry out maintenance, we must follow the formal methods to prevent minor inadvertent losses. (Text / Ren Hai Tu / Network Ren Haijun)


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