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Electrical

When checking the electrical equipment in the technical documentation of the car owner is faced with the concepts of 'voltage, current and resistance. "

Voltage is measured in volts (V), current - in amperes (A) and resistance - in ohms (R). In the car, the term stress is usually meant the battery voltage. At the same time it is a DC voltage of about 12 V. The voltage of the battery depending on the degree of depression and the outdoor temperature may be 10-13 V. On the other hand, developed by the generator voltage for on-board network, with an average engine speed is about 14 V.

The term "current" relatively rare in the field of power supply of the vehicle. Amperage contains, for example, on the reverse side of the fuses and indicates the maximum current that can flow without blown fuse and therefore without breaking the electrical circuit. Wherever current flows, it should be shunted resistance. Resistance, inter alia, depends on the following factors: cross-section, material of wire, current consumption, and so on. F. If the resistance is too large, then there are functional disorders. For example, the resistance of the high voltage not be too high, otherwise sufficiently reduced strength of sparks at the spark plugs to ignite the fuel-air mixture and hence start the engine.