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Safety locks - the general information

To protect the contact for the electrical vehicle used various combinations of fuses, fuse links and circuit breakers. The main mounting block is installed in the engine compartment, another mounting fuse box is placed in the car to the left under the instrument panel (see. Section mounting fuse / relay box - general information, removal, installation, replacement of fuses).

Each individual fuse used to protect a specific electric circuit, or multiple circuits. Label with identification card placing fuses in the mounting block is usually glued to the cover of the latter.

The mounting blocks are placed fuses compact design, equipped with bayonet contact terminals to easily recoverable fingers from their landing slots in the block. In case of refusal of any of the consumers of electricity in the first place you should always check the state of the corresponding fuse. Turn the ignition switch to the ON position, and with the help of a lamp-sampler prozondiruyte open terminals fuse assembly block - if the lamp lights up when connected to each terminal, therefore, the fuse is OK, if the voltage takes place only from the power supply, It means the fuse is blown. Note also that usually the fuse is made of transparent plastic through which to easily determine the status of the working bridge.

Fact burnout contact bridge of the failed fuse easily detected by visual inspection of its translucent body.

When replacing a blown fuse is strictly take care to set the replacement element corresponds to the type of the failed - designed for various rated current fuses can physically no different from each other, without being interchangeable. Each of the electrical circuits have different operating parameters and needs of varying degrees of protection, so the replacement fuse (calculated on a specific current strength) is not relevant to the parameters it is fraught with serious consequences (until the ignition). The operating parameters of the fuse (rated current) is usually indicated by its plastic housing.

If the new fuse immediately after installation also fails, it makes no sense to produce its further replacement - should first identify and eliminate the cause of the overload circuit. In most cases, such a short-circuit is the connecting wiring, it causes damage to the insulation.