簡(jian)要(yao)描述：產品(pin)中由于故障(zhang)條件(jian)(jian)(jian)，如流過泄漏路(lu)徑(jing)的(de)(de)(de)故障(zhang)電(dian)流，組(zu)件(jian)(jian)(jian)或(huo)零件(jian)(jian)(jian)的(de)(de)(de)過熱，不良接觸等情況下均可(ke)(ke)能(neng)引(yin)起火(huo)焰(yan)，它可(ke)(ke)能(neng)又射到附近的(de)(de)(de)零件(jian)(jian)(jian)上，針(zhen)焰(yan)試(shi)(shi)驗(yan)機(ji)是(shi)模擬產品(pin)內部在故障(zhang)條件(jian)(jian)(jian)下所(suo)產生的(de)(de)(de)小火(huo)焰(yan)，用(yong)模擬技術(shu)評定著火(huo)危險性。對于小零件(jian)(jian)(jian)(或(huo)組(zu)件(jian)(jian)(jian))灼熱絲試(shi)(shi)驗(yan)或(huo)水(shui)平－垂直燃(ran)(ran)(ran)燒(shao)試(shi)(shi)驗(yan)方法不適(shi)合時，可(ke)(ke)引(yin)用(yong)針(zhen)焰(yan)試(shi)(shi)驗(yan)方法。如果試(shi)(shi)驗(yan)樣品(pin)在進行灼熱絲試(shi)(shi)驗(yan)時起燃(ran)(ran)(ran)，則所(suo)產生的(de)(de)(de)燃(ran)(ran)(ran)燒(shao)危險情況還需用(yong)針(zhen)焰(yan)試(shi)(shi)驗(yan)。針(zhen)焰(yan)試(shi)(shi)驗(yan)儀適(shi)用(yong)于對電(dian)工電(dian)子產品(pin)、家用(yong)電(dian)器的(de)(de)(de)