iec60695-2-20 fig 4 hot wire ignition coil tester

Safety wooden box for hot wire ignition tester

Application

The hot wire ignition test requirements for electrical and electronic products, household appliances,fire hazard testing of materials,components or simulation burning like overload resistance heat or ignition source  in a short time caused by thermal-tress

Hot wire ignition performance is expressed as the mean number of seconds needed to either standard specimens without ignition,the specimens are wrapped with resistance wire that dissipates a specified level of electronic energy

Standard

GB4943 - 2001,IEC60950:1999,IEC60695-2-20,UL60950,ASTM D3874 – 1997,

IEC60695-2-20,UL60950,IEC60950-1999,ASTM D3874 – 1997

Specifications

A current: current yielding a linear power density of 0.26w/mm through the heater wire

B Test specimen winding device :provided to wind five turns of the heater wire uniformly on the test specimen with a 6.3mm +/- 0.2mm pitch and a tension of 5.4N+/-0.05N

C.heating wire:0.5mm+/-0.020mm Ni/Cr (80/20) ,and has a nominal cold resistance of approximately 5.25

D.Supply circuit:0.3w/mm power density ,adjusting the power level smoothly and continuously , with an on-off switch for the test power and timers to record the duration of application of the test power
E.Chamber with volume of at least 0.5mm3,black interior

 If you need any other messages we are not show here ,please dont hesitate to contact us below ,we will glad if we can help you ,thanks !