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If no problems occur when the vehicle is parked, a short circuit will not occur.
A short circuit is when a circuit or part of a circuit is shorted. If the load and the power supply are connected together by wires, it is called a short circuit, the current provided by the power supply during the short circuit will be much larger than the current provided by the path, and the short circuit is generally not allowed, if the short circuit is serious, the power supply or equipment will be burned out.
In the power system, the so-called "short circuit" refers to the connection between phases or between phases (or neutral wires) outside the normal operation of the power system. The basic forms of short circuit in the three-phase system are: three-phase short circuit, two-phase short circuit, single-phase grounding short circuit, two-phase grounding short circuit.
An abnormal connection (i.e., short circuit) occurs between phases or between phases (or neutrals), sometimes when a very large current flows. The current value is much greater than the rated current and depends on the electrical distance from the power supply at the short-circuit point. A short circuit is a low-resistance short circuit between conductive parts of different potentials, which is equivalent to a closed circuit directly connected by the wire without passing through the load.
Usually this is a serious and should be avoided as much as possible in the fault of the circuit, which can cause the circuit to burn out due to excessive current and fire).
A short circuit in the power supply means that in the circuit, the current does not flow through the electrical appliance, and is directly connected to the positive and negative poles of the power supply. According to Ohm's law i=u r, we know that since the resistance of the wire is small, the current on the circuit will be very large when the power supply is short-circuited. Such a large current, the battery or other power sources cannot withstand it, which will cause damage to the power supply; What's more, because the current is too high, the temperature of the wire will rise, and in severe cases, it may cause a fire.
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Cars have become an indispensable means of transportation in our lives, and we use them almost every day. However, there are also some friends who may not drive the car for a long time due to various reasons, and some novices are even afraid that their skills are poor and the new car will be damaged and reluctant to drive. You know, there's an old saying:
The car is broken, not broken, why do you say that? Let's talk about it.
I believe that many people have encountered this situation, the vehicle is not opened for several days, it will become difficult to ignite, feel that the starter is weak, and even the vehicle is completely out of power. This is because the battery has not been charged for a long time, which leads to the slow discharge of the battery, and eventually causes a loss of power, when you want to use the car, you will find that you can't hit the car, excessive discharge will cause damage to the battery, and the battery life will be greatly reduced.
When the vehicle has been stationary for a long time, especially after rain, we will find that the surface of the otherwise smooth brake disc is covered with a layer of rust, because the brake disc is in contact with moisture in the air, and the metal oxidizes and rusts. In the long run, these rusts are difficult to remove, and even after removal, they may cause the surface of the brake disc to be uneven, which will cause the vehicle to shake when braking, which will greatly affect the braking effect.
The third point is that if the vehicle is parked for a long time, it will definitely not be cleaned often, so that not only the paint surface will be covered with dust for a long time, but also some corners and corners are easy to enter dust. In addition to the invasion of harmful substances such as rain, gum, and bird droppings, the paint surface of the vehicle will be damaged and slowly lose its luster, and some rubber parts of the body, such as wipers, seals and other parts, will also accelerate aging.
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When the car is parked for a long time, the plug of the electronic components on the car may be oxidized due to moisture, so that the communication signal between the control units will not be accurate, and there may be a short circuit problem.
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The electronic components of the car are prone to problems, and the car is parked for a long time, and the plug of the electronic components on the car may be oxidized due to moisture, so that the communication signal between the control units will be inaccurate, and if there is a short circuit, it will also lead to the instrument. Look
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