When the electrical circuit works normally, heat-sensitive resistance temperatures are close to room temperature and the electrical resistance is very small, and the chain does not prevent the passing of electricity through the circuit; and when the electrical circuit passes through a malfunction, heat-sensitive resistance increases the temperature due to increased heat power, and when the temperature exceeds the temperature of the switch (ts, see figure 1), the electrical resistance increases dramatically, and the currents in the circuit rapidly decrease to safety values. The heat-sensitive electrical resistance was followed by a significant reduction in electrical currents in the circuit, with the t-time of the heat-sensitive electrical resistance. Because high molecular ptc thermal sensitivity resistance is well designed, its sensitivity to temperature can be regulated by changing its own switch temperature (ts) and thus can function both as temperature protection and overflow protection, such as kt16-1700dl specification thermal sensitivity resistance, which, because of low action temperatures, applies to the overflow and overtight of lithium ion and nickel hydrogen batteries. The effect of ambient temperature on high molecular ptc heat-sensitive electrical resistance the high molecular ptc heat-sensitive electrical resistance is a straight-heat, step-to-step heat-sensitive electrical resistance that is associated with its own heat and dissipation, thus maintaining electric currents (ihold), movement currents (itrip) and movement time subject to ambient temperature. When ambient temperatures and currents are in zone a, heat-sensitive electrical heat-retardation power is greater than dispersive power, and when ambient temperature and currents are in zone b, heat-retardation power is less than dissipation power, and high-molec ptc heat-sensitive electrical resistance can be repeated as resistance is restored. Figure 6 illustrates the time-sensitive pattern of electrical resistance during recovery following heat-sensitive electrical resistance actions. In general, resistance can be restored to levels about 1. 6 times the initial value in 10 to dozens of seconds, at which point the maintenance of heat-sensitive resistance has been restored to a rated level and can be used again. The recovery of heat-sensitive resistance is relatively rapid in size and thickness; it is relatively rapid in size and thickness。
