(,610072):,,:;;:TU85:B:1009-0029(2002)04-0040-01,,,,(),,1,PEPEN,,(PE),:1.1,(PE),,,(),1.2,,,,(PE),,1.3,PE,,,1.4,22.1:(1),,;(2);(3),:(1),,,,,;(2),,,;(3),,,,;(4),,,,;(5),,,;(44)04200274©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.[2002]004,,,AB85C,,,;(),,UnsafePotentialityoftheSafeProductMAOYi2ping(QualityandSupervisionandTestingCenterforFireE2quipment,Shanghai201100,China)Abstract:Theauthorinvestigatedon2the2spotandbylettera2mongtheprovincesusingalargeamountof1211fireextin2guishers.Andbasedontheverifyingtestoftheextinguisherscollectedfromtheabove2mentionedprovinces,thepaperpointsoutthepotentialhazardof1211fireextinguishersatpresentinChinathroughavastamountoffactsandexprimentdata.Keywords:halonfireextinguisher;investigation;potentialhaz2ard:(1960-),,,,,,,,391,201100:02125495986626301:2002-03-05(40)(6),,2.2,,3(1)TN,(PEN),;(2)TN-C-S,();(3),(PEN);(4)TT,();(5),,,;(6),,,DiscussionontheImportantFunctionofElectricalProtectiveWiresinPreventingtheFireduetoGroundConnectionMalfunctionZHANGXue2kai(SichuanFireGeneralBrigade,Chengdu610072,China)Abstract:Thepaperdiscussestheimportantfunctionofelectri2calprotectivewiresinpreventingthefireduetogroundcon2nectionmalfunction,analyzesquestionsofinstallinganduse,indicatesthemainrequirementsofelectricalprotectivewiresinpreventingelectricalfire.Keywords:electricalprotectivewires;groundconnectionmal2function;electricalfire:(1957-),,,,,,,2,610072:028-86303772:2002-03-0544200274©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.