What is the reason for the hot data line?

Generally, hot charging wire is caused by current and resistance. 2, hot charging line can be caused by a variety of reasons, caused by the following examples: charging line resistance is bigger, according to the formula of fever heat conductive body is equal to the current square multiplied by time multiplied by resistance, in guarantee under the condition of charging current consistent resistance, the greater the calorific value, the greater the charging line of copper mass transfer resistance is bigger, smaller cause fever larger cross section. 3, the use of fast charging, the current increase calorific value also increases, such as the 1A current charging calorific value compared to 1, 2A charging calorific value is four times that of 1A. 4, the charger heating leads to heat conduction to the wire, the charger in the charging time is there is a certain conversion rate, the general conversion rate is about 80%, the rest of the energy in the form of heat divergence, and the copper wire in the charging line is a good conductor of heat leading to the charging line heating. 5. In view of the above situation, it is recommended to buy brand data cables with good materials to reduce wire resistance and use mobile phone chargers with high conversion efficiency and fast heat dissipation.