Under what circumstances will the phone be shocked?
In general, the occurrence of electric shock when charging a mobile phone is not a single condition, but a series of situations will be established at the same time. That is to say, even if a poor quality charger is used, and the dangerous 220V commercial pressure is directly led to the mobile phone power supply ground, there is a perfect leakage protection device in the home, or the mobile phone that is held does not have metal material, etc., and will not cause Electric shock damage.
"5 elements of mobile phone shock":
1. The charger leaks, and the dangerous voltage is led to the 5V ground of the mobile phone power supply;
2. The mobile phone has a metal coating or a metal edge, and the metal edge is connected to the ground wire;
3. The human body touches the metal edge, and the other parts of the body are grounded to form a ground loop;
4. The home leakage protector is invalid, or not at all;
5. When there is a risk of electric shock, no one nearby rescues and powers off in time.
Does a wet phone call during charging really cause an electric shock?
Normally there should be no problem.
The 3C standard charger has been subjected to humidity test, the humidity environment is 93%, and then the high voltage test is carried out immediately. The input end of the charger and the input end and the input end are subjected to a high voltage test of 3000V, thus ensuring isolation between the primary and secondary. High voltage is not output to the mobile phone, so it is safe.
Can I answer the phone when the phone is charging?
According to the technical standards and the control of the enterprise specifications, the mobile phone and the charger should be safe when used together. Under normal circumstances, there is no problem in answering the phone when charging.
However, the market is full of inferior chargers. This type of charger cannot meet the safety requirements and is prone to soft breakdown.
As for the rumor that "there will be a strong current when charging", the transmission power of the mobile phone will become larger at a moment, but it has no special impact on electrical safety.
So remind the user, do not buy a charger that is too cheap, look for the safety logo on the charger.
How is the phone explosion caused?
The explosion is caused by the battery, and it does not matter whether the body is made of metal or not. If there is a quality problem with the battery, the internal short circuit of the battery will vaporize and cause the battery to explode.
In addition, some regular battery manufacturers will install a directional relief valve on the battery as the last step of protection. If there is danger, the gas produced by the electrolyte gasification can be “deflated†to prevent explosion.
Although the battery is not used, it is safe. This is also the last level of security protection. If a short circuit occurs normally, the leakage protection will be started in advance to avoid injury.
Will it be dangerous to overcharge for a long time?
There is no risk.
In the battery safety test, charging will continue for 7 hours under full charge, and the output voltage will increase to 1.06 times the standard voltage. In addition, the battery itself has a protection circuit, so there is no danger and no explosion.
Can all brands of mobile phone chargers be mixed?
Yes, the current mobile phone chargers use international standards (as long as they are qualified products), the danger is not who exchanges with whom, but the leakage does not leak.
In addition, the iPad charger with a current output of 2.1A is also fully chargeable for devices such as the iPhone, the so-called "big horse cart" and "small horse cart", which are all without problems.
Is it dangerous to plug the charger into the socket for a long time?
According to the WD/T1591 standard, the charger no-load current consumption is no more than 150 mA, so there is no impact.
But considering energy saving, it is better to pull it out.
How to choose mobile power?
At present, there are no national mandatory or natural safety standards for products such as mobile power. There is no uniform specification for mobile power products introduced by various manufacturers.
Therefore, the security cannot be clearly guaranteed. It is recommended to buy a large brand of products, and it is forbidden to buy a mobile power source with no information.
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