電表節電器有用嗎

最近一段時間，一種宣稱能省電30%以上的節電器在網上頗為熱銷，不少人都動了心。家(jia)用(yong)電(dian)表節(jie)電(dian)器真的能節(jie)電(dian)嗎？小(xiao)編特地從網上購(gou)買了(le)一(yi)款58元的家用(yong)節(jie)電(dian)(dian)(dian)(dian)器，請(qing)專業電(dian)(dian)(dian)(dian)工(gong)師傅做了(le)一(yi)個(ge)實驗。電(dian)(dian)(dian)(dian)工(gong)師傅將節(jie)電(dian)(dian)(dian)(dian)器接入一(yi)個(ge)插(cha)線(xian)板，再(zai)將插(cha)線(xian)板與(yu)一(yi)只可以測(ce)量功率、電(dian)(dian)(dian)(dian)流、電(dian)(dian)(dian)(dian)壓的電(dian)(dian)(dian)(dian)源插(cha)座相(xiang)連，然后使用(yong)不同功率的家電(dian)(dian)(dian)(dian)進行測(ce)試。

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電(dian)(dian)(dian)(dian)工師傅先將吹風(feng)(feng)機(ji)(ji)接入(ru)(ru)到電(dian)(dian)(dian)(dian)路中，插入(ru)(ru)節電(dian)(dian)(dian)(dian)器(qi)(qi)時(shi)(shi)，測量(liang)儀(yi)器(qi)(qi)顯示吹風(feng)(feng)機(ji)(ji)的(de)(de)即(ji)(ji)時(shi)(shi)功(gong)率(lv)(lv)為1018瓦(wa)，當拔掉(diao)節電(dian)(dian)(dian)(dian)器(qi)(qi)后(hou)，吹風(feng)(feng)機(ji)(ji)的(de)(de)即(ji)(ji)時(shi)(shi)功(gong)率(lv)(lv)依然是1018瓦(wa)，沒有發(fa)生(sheng)變化。在接入(ru)(ru)的(de)(de)兩分鐘時(shi)(shi)間里，吹風(feng)(feng)機(ji)(ji)的(de)(de)即(ji)(ji)時(shi)(shi)功(gong)率(lv)(lv)一直保持不變。隨后(hou)，又對瓦(wa)數相對較小的(de)(de)換氣(qi)扇和(he)燈泡分別進行(xing)了(le)測量(liang)，結果(guo)顯示，接入(ru)(ru)節電(dian)(dian)(dian)(dian)器(qi)(qi)之前的(de)(de)即(ji)(ji)時(shi)(shi)功(gong)率(lv)(lv)為40.14瓦(wa)，接入(ru)(ru)節電(dian)(dian)(dian)(dian)器(qi)(qi)的(de)(de)即(ji)(ji)時(shi)(shi)功(gong)率(lv)(lv)為39.75瓦(wa)。實驗表(biao)明，節電(dian)(dian)(dian)(dian)器(qi)(qi)影(ying)響(xiang)不到電(dian)(dian)(dian)(dian)器(qi)(qi)的(de)(de)正常消耗。

相關(guan)人士表示(shi)，目(mu)前節(jie)電(dian)器在家用(yong)電(dian)路上的應用(yong)很少，節(jie)電(dian)器最(zui)多的應用(yong)是(shi)在工(gong)業(ye)領域。工(gong)業(ye)領域中(zhong)的節(jie)電(dian)設施構造(zao)比較復雜(za)，一套工(gong)業(ye)節(jie)電(dian)設備的價格在上萬元，節(jie)電(dian)效(xiao)(xiao)果(guo)也只有5%。市場上的家用(yong)節(jie)電(dian)器，號(hao)稱節(jie)電(dian)效(xiao)(xiao)果(guo)能達(da)到20%-50%，肯定(ding)不靠譜。

從(cong)能量(liang)守恒(heng)定律(lv)來(lai)看，網絡上(shang)熱賣(mai)的(de)(de)這種(zhong)節電(dian)器(qi)(qi)(qi)不(bu)僅不(bu)會節電(dian)，反而(er)會產生更多(duo)的(de)(de)耗(hao)電(dian)，這種(zhong)節電(dian)器(qi)(qi)(qi)本身也會發熱，在使(shi)用(yong)過程(cheng)中會造成額(e)外的(de)(de)電(dian)能消(xiao)耗(hao)。想節電(dian)是(shi)好事，但這些節電(dian)器(qi)(qi)(qi)不(bu)少(shao)都是(shi)三無產品，建議(yi)消(xiao)費(fei)者不(bu)要輕信此類產品，以(yi)免上(shang)當受騙。市民們想省電(dian)，可(ke)以(yi)多(duo)選購節能型電(dian)器(qi)(qi)(qi)，使(shi)用(yong)低谷電(dian)，養(yang)成隨手關燈和電(dian)器(qi)(qi)(qi)的(de)(de)習慣(guan)。

另外，電表節電器并不是真正的降低耗能，而是通過非法的手段使電表計量出現偏差從而達到偷電的目的，而按照供用電條例的規定，這屬于私自改裝電表的行為，肯定會受到處罰。節能器其實就是偷電裝置，私改電表，如果涉及偷電金額過大，還將負法律責任，所以想要購買節電器的(de)市(shi)民可(ke)以(yi)醒醒了。