之前網上(shang)有報道(dao)，使用正在充電的手機打電話(hua)，結果不(bu)幸觸電身亡，為什么會出現這種情況，難道(dao)不安全嗎？還是充電時打電話不安全呢？專家分析有(you)這幾種(zhong)可能(neng)

可能(neng)1：充(chong)電器超負荷短路(lu)

手機市場雖魚龍(long)混雜(za)，但正規廠家的產品基(ji)本是經過安(an)全認證的，不會出現(xian)意外。出現(xian)上(shang)述(shu)悲劇的最大可能性(xing)是，電(dian)(dian)源適配(pei)器超負荷供電(dian)(dian)時短(duan)路引發偶然事(shi)故，充(chong)電(dian)(dian)端(duan)口輸(shu)出高電(dian)(dian)壓導(dao)致(zhi)人體觸(chu)電(dian)(dian)。

據了解，手(shou)(shou)機充(chong)(chong)電(dian)(dian)器結構包括高(gao)壓線圈(quan)（220V交流）、鐵芯、低(di)壓線圈(quan)和整流電(dian)(dian)路（輸出5V直流）。而與手(shou)(shou)機連(lian)接的(de)是低(di)壓（5V）充(chong)(chong)電(dian)(dian)接口，平時充(chong)(chong)電(dian)(dian)時，電(dian)(dian)流比較小，也比較均(jun)衡(heng)，但(dan)如果在充(chong)(chong)電(dian)(dian)時使(shi)用手(shou)(shou)機，會加大手(shou)(shou)機充(chong)(chong)電(dian)(dian)的(de)電(dian)(dian)流，且供(gong)電(dian)(dian)不穩定(ding)，因為手(shou)(shou)機客戶(hu)端各(ge)軟件(jian)硬件(jian)工(gong)作(zuo)功(gong)率也可(ke)(ke)能在不斷變化，很可(ke)(ke)能引(yin)起電(dian)(dian)源適配器的(de)偶然性故障。另(ling)外，手(shou)(shou)機充(chong)(chong)電(dian)(dian)器的(de)電(dian)(dian)壓參數雖然一樣，但(dan)功(gong)率卻(que)有(you)大有(you)小，貨真價(jia)實的(de)充(chong)(chong)電(dian)(dian)器個頭不可(ke)(ke)能太小，重量不可(ke)(ke)能太輕，其供(gong)電(dian)(dian)功(gong)率大、穩定(ding)性好。

“很多人認為手(shou)(shou)機外殼絕(jue)(jue)緣應該不會觸電(dian)。”其實日常用電(dian)屬于交流(liu)(liu)電(dian)，交流(liu)(liu)電(dian)是(shi)可(ke)以穿越絕(jue)(jue)緣體(ti)(ti)發生(sheng)導電(dian)的(de)。他進一步分析，手(shou)(shou)機充(chong)電(dian)端與人體(ti)(ti)都(dou)是(shi)導體(ti)(ti)，之(zhi)間(jian)夾著手(shou)(shou)機的(de)絕(jue)(jue)緣外殼，這在(zai)(zai)物理上(shang)稱(cheng)做一個(ge)“電(dian)容器”，交流(liu)(liu)電(dian)可(ke)在(zai)(zai)之(zhi)間(jian)導通。只是(shi)平時正(zheng)常充(chong)電(dian)的(de)電(dian)流(liu)(liu)電(dian)壓均(jun)很小，不會對(dui)人體(ti)(ti)造成(cheng)傷害。“與手(shou)(shou)指神經末梢相比(bi)，發生(sheng)觸電(dian)事(shi)故時，腦部神經觸電(dian)肯定更(geng)敏感且更(geng)致命。”

質量不好(hao)的山寨電源適(shi)配(pei)器，沒(mei)有(you)(you)保護電路，產品設計往往也有(you)(you)缺陷，如果保護層(ceng)沒(mei)有(you)(you)做好(hao)，導致線體外(wai)露，就(jiu)可(ke)能會(hui)發生充電時觸(chu)電的情況。