Generally speaking, the failure rate of resistors is relatively low compared with other components, so people generally assess the service life of resistors is relatively short. However, the failure rate will increase under high pressure and high temperature conditions, so in some cases, people must carefully evaluate the service life of the resistor.

500kw load bank
 

Elements harmful to the service life of resistors:

(1) Temperature, high temperature can quickly damage it.

(2) the pH ph of the natural environment, the immediate erosion resistance caused by its destruction.

(3) The action of external force, beyond a certain degree of force, resistance will break immediately.

Therefore, to increase the service life of the resistance, heat pipe heat dissipation, avoid damage, the natural environment to dry, no air pollutants, to prevent external forces. High resistance value of the resistance, the relative life will be born. The resistance value of M ω level is very high. When applied in the bottom pressure, because the output power consumption is less, the environmental harm in the work is minimal, and the service life is generally long, so there is no need to pay attention to it (relativity, such as film capacitance and other components). Problems are most often caused in high-pressure jobs. When working at high pressure, the production and manufacturing process of resistance and the application of materials are often very specific. To take into account the application of output power will usually use larger will (the safety output power value of the resistance is two times the output power of the specific work, some design products are not good, usually the application of output power and the maximum power value of the resistance is too close to), so the temperature tolerance of the ability to work is the most basic provisions. A single pulse operating voltage and surge current can also cause a fatal blow to the resistance.