小區家用電動汽車充電樁的用電安全問題

新能源(yuan)電(dian)(dian)動(dong)汽車充電(dian)(dian)樁(zhuang)的安裝及安全使用，首先要看購買車型(xing)配套充電(dian)(dian)樁(zhuang)的技(ji)術參(can)數，主要看充電(dian)(dian)樁(zhuang)的工作電(dian)(dian)壓(ya)和功率。

1、電(dian)壓：家用的(de)充電(dian)樁都是(shi)交流220V的(de)；

2、功(gong)率：220V的交(jiao)流充(chong)電(dian)樁(zhuang)常(chang)見(jian)功(gong)率是(shi)(shi)3.3KW（16A）、7KW（32A），便攜充(chong)電(dian)槍一(yi)般(ban)是(shi)(shi)≤1.7KW（8A）的。一(yi)般(ban)配(pei)備3.3KW的是(shi)(shi)插(cha)電(dian)式混合動(dong)力車(che)，7KW的是(shi)(shi)純電(dian)動(dong)車(che)的標準配(pei)置。正常(chang)超過7KW功(gong)率的純電(dian)動(dong)車(che)充(chong)電(dian)樁(zhuang)就要用到380V電(dian)壓，需要申請三(san)相(xiang)專(zhuan)用線路才能使用。
一般家庭只有220V 10KW進戶容量，所以大于功率7KW的充電(dian)樁4S店也不(bu)可能(neng)給您安裝的，其電(dian)壓(ya)和功率都不(bu)能(neng)匹配的。
需(xu)要說明一下，電壓X電流=功率，220VX32A=7040W約等于7KW，（1000W=1KW）。
充(chong)電(dian)(dian)樁給(gei)新能源車充(chong)電(dian)(dian)功(gong)(gong)率(lv)大、充(chong)電(dian)(dian)時(shi)間(jian)長，多少會影(ying)響(xiang)您(nin)家里其他的(de)用(yong)(yong)電(dian)(dian)設施(shi)的(de)使(shi)(shi)用(yong)(yong)。剛才也說了，一般家庭的(de)進戶容量是10KW。家里其他大功(gong)(gong)率(lv)電(dian)(dian)器如果同時(shi)使(shi)(shi)用(yong)(yong)會影(ying)響(xiang)到使(shi)(shi)用(yong)(yong)的(de)安全(quan)性：

如(ru)果您家(jia)里是(shi)(shi)使用即(ji)熱(re)式熱(re)水器(qi)（功(gong)率7KW），那么不管(guan)您的充電(dian)樁(zhuang)是(shi)(shi)3.3KW還是(shi)(shi)7KW的，就(jiu)可以(yi)告別一邊洗(xi)澡一邊充電(dian)了。 因此就(jiu)要避免大功(gong)率電(dian)器(qi)同時使用就(jiu)能(neng)避免過(guo)載的情況。（附常見家(jia)用電(dian)器(qi)額定功(gong)率：即(ji)熱(re)(re)式熱(re)(re)水(shui)器(qi)(qi)7KW，儲(chu)水(shui)式熱(re)(re)水(shui)器(qi)(qi)2.3KW,2匹空(kong)(kong)調制(zhi)冷(leng)1.5KW，2匹空(kong)(kong)調制(zhi)熱(re)(re)2.5KW，浴(yu)霸2.1KW，1.5匹空(kong)(kong)調制(zhi)冷(leng)1.1KW，1.5匹空(kong)(kong)調制(zhi)熱(re)(re)2.2KW，電(dian)(dian)(dian)吹風(feng)機2KW，電(dian)(dian)(dian)暖氣(qi)2KW，電(dian)(dian)(dian)磁(ci)爐(lu)2KW，電(dian)(dian)(dian)水(shui)壺1.5KW，微波爐(lu)1KW以上電(dian)(dian)(dian)器(qi)(qi)功(gong)率(lv)(lv)僅供參考具體功(gong)率(lv)(lv)要看家里安(an)裝的電器(qi)功(gong)率(lv)(lv)）

電(dian)(dian)(dian)纜(lan)(lan)的(de)敷設規范：從家里拉電(dian)(dian)(dian)的(de)話，電(dian)(dian)(dian)纜(lan)(lan)敷設要符合規范，走墻(qiang)壁的(de)要用阻燃的(de)線(xian)管或者(zhe)線(xian)槽可靠固定。過道(dao)的(de)建(jian)議(yi)穿管掩埋。避免飛線(xian)，不規范的(de)電(dian)(dian)(dian)纜(lan)(lan)布置可能存(cun)在電(dian)(dian)(dian)線(xian)墜落、纏繞(rao)、火(huo)災(zai)、觸電(dian)(dian)(dian)等風險。