Flammability
■Considering fire and possible fire hazard, the design engineer should know that.UL detail specification concerning DC Aluminium Electrotytic Capacitors doesn't exist
■UL specifications cover fire hazard and test on not flammable material.
■The test that can be used to control outside material used in Aluminium Electrolytic Capacitors European is covered by the specifications [IEC 60695-2-2]
■The tests done on finished capacitors are to be considered useful only for comparison as it strongly depend on material dimensions and also by other materials that can be in contact: external material itself are UL approved as VO or HB rated
■Under standard applications [when soldering heat is not in excess, if the beading is not damaged, if an abnormous use conditions are not applied, if there has been an incorrect polarity application etc.) there is no leakage of the liquid that impregnates the rolled section ("the capacitor's body"): if tliat happens and if there is a possible fire source around the unit the ignition of the rolled section can start and will continue until the fire(or the flame op whatsoever is the possible ignition reason)stays in contact with the inside part of the capacitor.
■As soon as the fire source is removed the rolled section stops to burn generally in less than 15 seconds.
It is of great importance to underline that the fire stops as soon as the source is removed ; if source of fire is newly applied the fire can restart.
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Test Report |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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2014/7/4 |
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142 KB |
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