Will the phone charger stay on the socket?

Recently, the Guangdong consumer network issued a consumer warning, saying that "million hole socket hidden trouble, consumers do not buy." For million hole socket and other non-national standard mobile power outlet after the market is still on sale, the provinces and cities consumption The Association issued a consumer warning, to remind consumers million hole socket hidden, do not buy million hole socket and other non-national standard mobile power outlet, what the new national standard socket and non-national standard socket What is the difference? How should consumers buy?

From the plug appearance, the new national standard socket plug is three-phase; non-national standard socket plug is not uniform, and some even if the board is a three-pole jack, its plug may also be two-phase, there may be three-phase of. Special note is that some of the appearance of substandard products is a five-hole socket design of the new national standard, the plug is two-phase, and does not meet the new national standard.

Questions about the new national standard socket

Q: What is the new national standard socket?

A: The so-called "new national standard socket", is the State Administration of Quality Supervision and the National Standardization Management Committee jointly issued the "household and similar use plug socket Part 2: the special requirements of the converter", which explicitly prohibits the production of universal hole socket, Production of two-pole and three-pole jacks in separate combinations of sockets.

Q: What are the security risks of the hole socket?

A: hole hole socket, that is, the socket can be compatible with two poles or three poles, due to too many holes, may lead to wrong plug, mistakenly inserted and other electric shock hazard; due to larger jack, socket connector and electrical plug contact area is too small , Easy to make contact pieces overheating lead to fire accidents. The British standard, the US standard, the European standard such non-daily use of the plug socket, to be compatible with multi-national standard plug, if the manufacturer is not enough processing level, may lead to plug and jack between the bad contact, easy to heat, And even lead to fire accidents.

Q: Why is the new national standard socket five-hole design?

A: The new national standard stipulates that in the same jack, can not be compatible with the national standard plug and external standard plug, can only be inserted into the national standard plug or external standard plug, and in the national standard socket, poles, three pole jack can be in the same On the surface, can be combined but can not communicate with each other, that is, the traditional plug can be inserted with a two-pole plug, but also insert the situation of three-pole plug is not allowed.

Q: how to distinguish between the old and new national standard socket?

A: From the line board appearance point of view, the new national standard socket, is a five-hole design, three-pole jack and the two pole plug is separated, in which the three-pole jack has two holes are inclined; non-national standard socket three pole plug Holes are large round, this jack can insert a three-pole plug can also plug the pole plug.

From the plug appearance, the new national standard socket plug is three-phase; non-national standard socket plug is not uniform, and some even if the board is a three-pole jack, its plug may also be two-phase, there may be three-phase of. Special note is that some of the appearance of substandard products is a five-hole socket design of the new national standard, the plug is two-phase, and does not meet the new national standard. In the design of the power plug, in order to take into account the safety of users, some manufacturers will consciously design the ground feet than the conductive feet a few millimeters long. This is because when inserting the three-pin plug, the ground pin first contact the ground wire within the socket, so that the first ground protection, and then connected to the power; the other hand, pull out the three-pin plug, the conductive feet with the power outlet Separate, grounded and disconnected.

From the internal structure of view, the new national standard socket inside the three lines are zero line (black or green), FireWire (red), protective grounding wire (yellow and green); non-national standard socket is often only two lines, one for the line of fire , One for the zero line. If the metal case of household appliances due to damage to the insulation and other reasons charged, then the ground will form a short-circuit ground current, so that the metal casing of the household electrical appliances and ground discharge, so that people are not electric shock, play a role in security The

From the packaging point of view, the new national standard socket on the packaging will be marked "according to G B2099.3-2008 standard production"; old national standard socket marked "according to G B2099.3-1997 standard production."

Other questions about sockets and electricity

Q: Why does the hotel bathroom only provide 110V razor socket?

A: In the "People's Republic of China star hotel rating" in the "three-star" and above the hotel's assessment requirements are in a "provide 110 / 220V uninterruptible power socket" because the bathroom is a wet place, the human skin Exposure of the large area, more than 20 volts of leakage is enough to let an adult's heart to stop working. The bathroom is defined by the International Electrotechnical Standard as a special place for high risk of electric shock, and has introduced electrical specifications for such areas. For example, the "International Cable Installation Manual" (IEEW iringRegulations) clearly defined the bathroom electrical hazard zone. In the bathroom outside the dangerous area, the power outlet must use the current limit switch, isolation transformer, while the two pins and ground voltage interval are 55V, 110V, 220V and the like is absolutely not allowed in the high voltage in the bathroom Area.

For domestic hotels, although the domestic standard has not yet included in the bathroom in the dangerous area, the electrical requirements are more relaxed, but the hotel as a public place, in line with more stringent international standards is a good reflection of safety awareness

Q: How should the bathroom in the home safely install the socket?

A: The renovation of your own bathroom must be planned early dry, wet area separation, electrical outlet, washing machine, etc. must be away from the wet area 3 meters outside the strict compliance with the provisions can not guarantee 100% security, but also greatly reduces the security risks.

Q: mobile phone socket charging fever is serious, but because the filling time is short; with computer U SB charge, fever is not so serious, but because the charge is too slow a long time. Which one can extend battery life?

A: socket charging, power output capacity, and the phone's internal power management part of the charge current is relatively large, in the case of ensuring the power supply, the actual charging time is short and really hot, but after all, there are restrictions, not Fever was too much, fever to the explosion after burning a few.

U SB port charge, the output is limited, in the absence of driving, etc., can only output 500m A, charge slow is normal.

Theoretically small current charge on the battery life is better, but taking into account the use of life and life, high current charging is indeed more convenient, as long as the large current charge can be.

Q: idle phone charger to stay in the socket, there will be the risk of fire?

A: The regular charger products will consider the no-load situation, and usually do not have any dangerous components of life, the basic products do not have to consider, you change the speed of the mobile phone must be faster than conventional electronic components failure much faster.

However, the cottage goods, fake and shoddy products is difficult to say, consider no-load, over-voltage, short circuit, high temperature and other protection mechanisms are to hardware costs, and poor quality bargain, there is a certain possibility to remove those protection mechanisms to reduce cost. This product is not just no load, any time may be an accident.

Q: How do I safely charge the mobile power?

A: For most of the current digital products, the internal charging circuit will be equipped with the corresponding charge protection chip to avoid the lithium battery overcharge phenomenon, when the protection circuit to detect the lithium battery has reached full power state, it will automatically cut off the charging circuit The However, in order to prevent the risk of charging the chip to protect the failure, it is best to fully charge immediately after the unplug the plug. To charge the mobile power, it is best to flat charge, and with a good plug.

In addition, the mobile power supply should be charged using a genuine charger that complies with the mobile power charging parameters. As the mobile power of the larger, charging time is longer, longer duration of heat. Poor quality charger its product insulation, material flammability and so are not guaranteed, most likely lead to electric shock and fire and other hazards. Even under normal operating conditions, may cause hotness, lower insulation levels and the risk of safety components to reduce or ignite flammable liquids.