The research on kindling characteristic testing system of electrical arc discharge in intrinsic safety circuit

Abstract：The former non-explosion assessing method research on kindling characteristic testing system of electrical arc discharge in intrinsic safety circuit mostly aims at the design of intrinsic safety circuit, which circuit parameter of different circuits is adjusted in order to make the circuit reach the stated coefficient.The function of circuit is different and the model of electric arc is distinct.However, whether electric arc make gas start burning or not, it can be determined by the energy of the arc.Non-explosion method of assessing the characteristic of igniting flammable gas by electric arc is to record wave of voltage and current of electric arc.Then calculate energy of the arc and asses the kindling character of circuit by comparing with the minimum igniting energy.The testing system which is made out is quit different from others before, it needn't consider circuit character, circuit parameter and the kindling characteristic of the circuit can be judged through discharge energy.

Keyword：intrinsic safety circuit;non-explosion assessing method testing system;minimum discharge energy;arc energy;