Safety precautions for electric vehicles

I. Precautions for battery installation.

1. Before installing the battery, please check whether there are any hard objects in the battery box or whether the battery box is flat.

2. When installing the battery, the battery wires should be arranged separately, and they cannot be crossed, overlapped and squeezed. The battery cable carries a large current of the whole vehicle, and it will generate heat when running. After the battery wire is squeezed, the skin is easy to wear, which reduces the insulation performance and causes short circuit and combustion.

3. When connecting the battery wire, be sure to install the spring pad and tighten the screws at the same time to ensure that the battery terminal is not loose, so as to avoid fire during use, burning the battery wire at high temperature and short circuit burning.

4. After connecting the battery, cover it with rubber pad. When placing the battery wires, separate the battery wires by hand so that they cannot overlap, and tighten the screws at the same time.

Be careful not to use flammable items such as cardboard and foam instead of rubber pads, or put them into battery boxes as fillers.

5. When installing the battery, if the connecting wire of the air switch in the bucket is loose, after installing the battery, the two connecting wires of the air switch must be connected well, so as not to be loose, so as to avoid burning the car.

6. After installing the battery, cover the inner cover of the bucket when installing the bucket. Metal objects should not be placed in the barrel, so as to avoid metal objects falling into the battery and colliding with the anode and cathode of the battery, resulting in short-circuit combustion.

7. You can't install a single battery without permission (48V plus 1 battery becomes 60V). After the battery voltage rises, the internal components such as converter, controller and burglar alarm can't bear the high voltage, which will burn out the components and cause short circuit, thus causing combustion. Adding a single battery; The battery is easy to be inverted, and it is easy to leak liquid to damage the battery compartment when charging, and the battery is short-circuited and heated, resulting in the battery catching fire.

8. The battery is seriously dehydrated. When charging, the battery will heat up and bulge, and the high temperature will burn out the battery wires, causing short-circuit combustion.

9, don't use low-priced inferior batteries, inferior batteries in order to reduce costs, no burr, burr pierced the diaphragm, short circuit heating, resulting in natural battery scrap.

Second, electric vehicle charging precautions.

1. When charging, the charger will heat up and the battery will heat up. You should choose a good ventilation environment. The poor ventilation conditions may lead to short-circuit combustion due to overheating.

2. When charging, the charger should be placed on the pedal. It is forbidden to cover or put it on the mat or in the bucket.

3. When the charger is carried with the vehicle, there is no shockproof protection. Long-term collision of vehicles causes the power plant to come off welding and catch fire at work. It is recommended that the charger not be carried with the vehicle.

4. After the charger falls or collides, the fan is easy to break down. When charging, observe whether the cooling fan of the charger works normally. If the fan is broken, repair or replace the new charger in time.

5. The charging time is 8- 10 hour. Don't charge the electric car for a long time, especially in summer, when the weather is hot and the charger is charged for a long time, the heat of the charger is difficult to dissipate, resulting in combustion.

6. When charging, extend the power cord at will, often pull it around, the connector is loose, the line is aging, and the rubber of the wire is damaged and short-circuited to catch fire.

7. When charging, the electric door lock must be closed. If the battery voltage rises after opening the electric door lock, it will burn out the electric door lock, causing short circuit and fire.

8. Qualified flame-retardant wires should be selected when charging, and the lines should have leakage protection devices.

Third, electric vehicle maintenance precautions.

1. After the maintenance of the electric vehicle, be sure to connect the controller, power cord and motor cord, and tie all the wire harnesses tightly with tie straps to ensure that the plugs are not loose.

You can't give the electric car to a mechanic who has no maintenance experience.

Four, can not be modified, installation of vehicle lines.

1. Merchants or users modify the vehicle line privately. The modified wiring is not flame retardant, the wiring is messy, the binding is not tight, the connector is easy to loosen, the contact is poor, the internal resistance of the wiring increases, and the wiring will burn for a long time, resulting in poor insulation and short-circuit combustion.

2. Merchants or users install vehicle lines privately, such as installing high-power light bulbs, speakers, subwoofers, etc. , increasing the output load of the converter, easily burning the internal components of the converter, resulting in short-circuit combustion.

Five, can't use high-pressure water gun, flush the inside of the electric car, so as not to cause internal circuit short circuit.

Before going out, check whether the tire pressure is sufficient. If the tire pressure is very sufficient, the occurrence of cable ties will be avoided. If the electric car is tied to the road, it will be very passive. The inspection method is to park the car and then press the tires with your thumbs. If it can be pressed, or even pressed a lot, it is necessary to inflate it with a trachea; If it can't be pressed down, or the basic pressure is not too much, it means that the air pressure is sufficient and it can move normally.

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When traveling in winter, keep warm. The weather is not very cold in other seasons, so the situation will be much better. When traveling in winter, the weather is sometimes very cold, and riding a bike to work will freeze your face, hands and legs, so you'd better wear a hat, coat, scarf or mask. You can put cotton gloves on your hands and a cotton windbreaker on your legs. With these equipment, it is not only conducive to the warmth of travel, but also conducive to the safety of travel.

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Pay special attention to the ground freezing when traveling in winter. The ice on the ground is very easy to slip, and people often fall down in this situation. The prevention method is to slow down the freezing speed, don't brake suddenly, and pass slowly. If there is a car next to you, don't pass at the same time, in case the pulley hurts people and knocks you down.

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Pay attention to the small animals in the street. Small animals in the street sometimes suddenly emerge from corners and sides. In order to avoid small animals, people often fall or have joint traffic accidents. This situation is difficult to prevent because it is sudden, but improve your safety awareness and don't ride too fast. In this case, you will have enough time to brake or stop, so as not to let the car fall off balance and get injured.

Obey the traffic rules. It is very important to obey the traffic rules. Overtake at the green light and stop at the red light. At night, some motorcycles don't have headlights, and they are usually fast. When he sees the green light, he will pass quickly, but he thinks it is dangerous to run a red light without a car. Therefore, when traveling outside, we should form the good habit of obeying traffic rules, which will greatly improve our safety awareness and personal safety.

Pull over when you exercise on the road at night. It is safe to pull over on the road, the speed is very fast, and the hanging injury is often very serious. Try to keep a straight line when moving sideways. If you get out of the motorcycle behind you, you are prone to traffic accidents.