GB 18384-2020《電(dian)(dian)(dian)動(dong)汽車(che)安全(quan)要求》和(he)GB 38032-2020《電(dian)(dian)(dian)動(dong)客車(che)安全(quan)要求》以及GB 38031-2020《電(dian)(dian)(dian)動(dong)汽車(che)用動(dong)力蓄電(dian)(dian)(dian)池安全(quan)要求》是我國電(dian)(dian)(dian)動(dong)汽車(che)領(ling)域首批強(qiang)(qiang)制(zhi)(zhi)性國家標準(zhun)(zhun)，將于2021年1月(yue)1日起開(kai)始實施(shi)。經國家工業和(he)信息(xi)化部同意(yi)在標準(zhun)(zhun)實施(shi)日期(qi)2021年1月(yue)1日之前(qian)，允(yun)許企業根據自身情(qing)況(kuang)提前(qian)執行(xing)以上(shang)強(qiang)(qiang)制(zhi)(zhi)性國家標準(zhun)(zhun)，在申請產品準(zhun)(zhun)入時，可依據強(qiang)(qiang)制(zhi)(zhi)性標準(zhun)(zhun)進行(xing)檢驗(yan)(yan)檢測，相(xiang)關(guan)檢驗(yan)(yan)檢測報(bao)告作為(wei)準(zhun)(zhun)入的依據。

新標準(zhun)GB38031-2020是由(you)2個(ge)推薦性標準(zhun)GB/T31485-2015《電動(dong)(dong)汽(qi)車用(yong)動(dong)(dong)力(li)蓄電池安全(quan)(quan)要求(qiu)及試(shi)驗方法》和GB/T31467-2015《電動(dong)(dong)汽(qi)車用(yong)鋰(li)離(li)子動(dong)(dong)力(li)蓄電池包和系統 第(di)3部分：安全(quan)(quan)性要求(qiu)與測(ce)試(shi)方法》融合(he)而來的，與我國(guo)牽頭(tou)制定的聯合(he)國(guo)電動(dong)(dong)汽(qi)車安全(quan)(quan)技術法規UN GTR 20全(quan)(quan)面接(jie)軌(gui),進一(yi)步提高(gao)和優化了對(dui)電動(dong)(dong)汽(qi)車整車和動(dong)(dong)力(li)電池產品的安全(quan)(quan)性技術要求(qiu)。

GB38031-2020中對單體(ti)電(dian)(dian)池(chi)沒有振(zhen)(zhen)動(dong)(dong)(dong)試驗(yan)要(yao)求，而對電(dian)(dian)池(chi)包和電(dian)(dian)池(chi)系統卻有相應(ying)的(de)(de)振(zhen)(zhen)動(dong)(dong)(dong)試驗(yan)的(de)(de)要(yao)求，其(qi)振(zhen)(zhen)動(dong)(dong)(dong)試驗(yan)條件與GB/T 31467.3-2015相比(bi)顯得更加細致和嚴格，這(zhe)也呈現了新標準重點強(qiang)化了電(dian)(dian)池(chi)產品(pin)整(zheng)體(ti)結構抗振(zhen)(zhen)能(neng)(neng)力對安全性(xing)保(bao)障的(de)(de)重要(yao)性(xing)，也意味著動(dong)(dong)(dong)力電(dian)(dian)池(chi)企業在產品(pin)結構設(she)計(ji)不能(neng)(neng)忽視以(yi)剛度乃至剛質(zhi)比(bi)等結構參數為主的(de)(de)機(ji)械強(qiang)度指(zhi)標，以(yi)保(bao)證自己的(de)(de)動(dong)(dong)(dong)力電(dian)(dian)池(chi)產品(pin)順(shun)利進軍新能(neng)(neng)源(yuan)汽車產品(pin)的(de)(de)大市場。

動力電池振動試驗目的

GB38031-2020中(zhong)的(de)(de)振(zhen)動(dong)試(shi)驗(yan)(yan)是圍繞安全(quan)(quan)指標來考核動(dong)力(li)電(dian)(dian)池的(de)(de)能(neng)力(li)，在(zai)該(gai)標準的(de)(de)第5章，所有的(de)(de)安全(quan)(quan)指標都一一呈現。其(qi)中(zhong)振(zhen)動(dong)試(shi)驗(yan)(yan)的(de)(de)安全(quan)(quan)指標包(bao)括：夠絕(jue)緣、無(wu)銳(rui)變、不(bu)燃(ran)、不(bu)爆、不(bu)漏、不(bu)裂等，這些指標與電(dian)(dian)池單體(ti)的(de)(de)一致(zhi)(zhi)性密切相關(guan)，可(ke)以說(shuo)振(zhen)動(dong)試(shi)驗(yan)(yan)也(ye)間接地考核了電(dian)(dian)池單體(ti)性能(neng)一致(zhi)(zhi)性，新標準體(ti)現的(de)(de)最基本(ben)的(de)(de)安全(quan)(quan)要(yao)求，也(ye)是動(dong)力(li)電(dian)(dian)池的(de)(de)市(shi)場準入最起碼(ma)要(yao)求。例(li)如(ru)，電(dian)(dian)池包(bao)在(zai)振(zhen)動(dong)試(shi)驗(yan)(yan)期間和試(shi)驗(yan)(yan)后(hou)，最起碼(ma)不(bu)會出(chu)現熱失控(kong)的(de)(de)起火或(huo)爆炸，不(bu)允許(xu)有電(dian)(dian)壓的(de)(de)銳(rui)變等，不(bu)能(neng)出(chu)現殼體(ti)結構(gou)破裂乃至(zhi)化學(xue)液(ye)體(ti)泄漏，絕(jue)緣結構(gou)應該(gai)完好(hao)無(wu)損。

與普通燃(ran)油汽車 DC12V蓄(xu)電(dian)池(chi)比較(jiao)，電(dian)動汽車動力電(dian)池(chi)的絕緣電(dian)阻技術要求有很大(da)的差別(bie)，電(dian)動汽車的電(dian)壓(ya)和電(dian)流(liu)等級都較(jiao)高，車載(zai)電(dian)池(chi)包(bao)電(dian)壓(ya)一(yi)般在幾百伏，超(chao)出(chu)特(te)低電(dian)壓(ya)的限(xian)值，防觸電(dian)的要求就突出(chu)了。

根據國家標準GB3805《特低(di)電(dian)(dian)(dian)壓(ya)（ELV）限(xian)值》可(ke)知(zhi)在(zai)(zai)一定電(dian)(dian)(dian)壓(ya)作(zuo)用下，對有(you)觸(chu)電(dian)(dian)(dian)保(bao)(bao)護裝置的(de)情況(kuang)，人(ren)體(ti)允許通過的(de)電(dian)(dian)(dian)流(liu)為(wei)(wei)30mA。一般(ban)在(zai)(zai)干燥、正常情況(kuang)下人(ren)體(ti)的(de)電(dian)(dian)(dian)阻約為(wei)(wei)2000Ω左右(you)，可(ke)以推測直流(liu)電(dian)(dian)(dian)壓(ya)大于(yu)60V會(hui)對人(ren)體(ti)有(you)電(dian)(dian)(dian)擊的(de)傷(shang)害，由(you)于(yu)電(dian)(dian)(dian)動汽車(che)電(dian)(dian)(dian)池系(xi)統是一種(zhong)超過100V的(de)高壓(ya)，并且是一種(zhong)高能(neng)量(liang)存儲裝置，因此(ci)在(zai)(zai)無任(ren)何防觸(chu)電(dian)(dian)(dian)保(bao)(bao)護情況(kuang)下，人(ren)員觸(chu)及將極其危險(xian)。所以GB38031標準對振動試驗(yan)的(de)安全(quan)驗(yan)證(zheng)(zheng)明確提出了絕(jue)緣(yuan)電(dian)(dian)(dian)阻不小于(yu)100Ω/V的(de)要(yao)求。因此(ci)，在(zai)(zai)電(dian)(dian)(dian)動汽車(che)及配套(tao)主件的(de)開發中，要(yao)注意高壓(ya)電(dian)(dian)(dian)氣系(xi)統的(de)絕(jue)緣(yuan)設計，嚴格控制(zhi)絕(jue)緣(yuan)電(dian)(dian)(dian)阻值，保(bao)(bao)證(zheng)(zheng)泄漏電(dian)(dian)(dian)流(liu)在(zai)(zai)安全(quan)的(de)范圍內。

振(zhen)動(dong)(dong)能(neng)(neng)量(liang)的(de)(de)傳播往往會(hui)對動(dong)(dong)力(li)電(dian)池(chi)的(de)(de)絕緣(yuan)結構(gou)產生(sheng)一定的(de)(de)破壞作(zuo)用，作(zuo)為產品(pin)結構(gou)設(she)計師必須考慮絕緣(yuan)結構(gou)能(neng)(neng)否耐(nai)受電(dian)動(dong)(dong)汽(qi)車路況的(de)(de)多種振(zhen)動(dong)(dong)，保(bao)障安全指(zhi)標不(bu)會(hui)降低，因此，電(dian)池(chi)單體(ti)、模組、電(dian)池(chi)包以(yi)及電(dian)氣連(lian)接需要(yao)設(she)計足夠的(de)(de)電(dian)氣間隙和爬電(dian)距離，不(bu)僅要(yao)保(bao)證電(dian)池(chi)系統絕緣(yuan)材料(liao)結構(gou)在(zai)振(zhen)動(dong)(dong)環(huan)境下的(de)(de)機(ji)械穩(wen)定性(xing)，即使其在(zai)長期使用出現一定結構(gou)變化后，仍能(neng)(neng)確保(bao)不(bu)會(hui)絕緣(yuan)失效。

新標(biao)(biao)準(zhun)GB38031中(zhong)的(de)振動(dong)(dong)(dong)試驗的(de)要求(qiu)只涉及安全(quan)(quan)，不涉及性(xing)能特性(xing)和功能特性(xing)等與可靠(kao)(kao)性(xing)相關的(de)指(zhi)標(biao)(biao)，固不能將新標(biao)(biao)準(zhun)中(zhong)的(de)振動(dong)(dong)(dong)試驗完全(quan)(quan)取(qu)代與動(dong)(dong)(dong)力電池可靠(kao)(kao)性(xing)考核(he)所涉及的(de)全(quan)(quan)部振動(dong)(dong)(dong)試驗。 

送樣要求和試驗對象

電(dian)(dian)池包(bao)的振(zhen)動(dong)試驗(yan)(yan)不是單純將(jiang)樣品安裝在振(zhen)動(dong)臺(tai)臺(tai)面上的裸機(ji)振(zhen)動(dong)試驗(yan)(yan)，試驗(yan)(yan)過程需要(yao)狀態監測，離不開(kai)電(dian)(dian)池包(bao)配套附設件(jian)的連(lian)接和調試等流程，正如標準(zhun)GB38031的第(di)6.1條所(suo)述，電(dian)(dian)池廠(chang)商在委托(tuo)第(di)三(san)方機(ji)構檢測送樣時(shi)需要(yao)提供電(dian)(dian)池包(bao)或(huo)電(dian)(dian)池系統交付需要(yao)包(bao)括必要(yao)的操作文件(jian)以及和測試設備相連(lian)所(suo)需的接口部件(jian)，如電(dian)(dian)插(cha)器、插(cha)頭、冷卻系統接口，以及產(chan)品結構示意(yi)圖等，明確試驗(yan)(yan)所(suo)需的重要(yao)參數如安全工作限值、充放電(dian)(dian)截止條件(jian)和電(dian)(dian)壓銳變(bian)閾值等，確保預處理(li)和振(zhen)動(dong)試驗(yan)(yan)時(shi)樣品能正常運作。

標準GB38031的第8.2.1.1條(tiao)明確(que)規(gui)定，振動試驗的對象(xiang)是(shi)電(dian)池(chi)包或(huo)電(dian)池(chi)系(xi)統，不是(shi)電(dian)池(chi)單體。

振動試驗前樣品的預處理要求

在(zai)振動(dong)試驗前(qian)，電池(chi)包或系統樣(yang)(yang)品(pin)需要先進行預(yu)處(chu)(chu)理(li)循環，以確保在(zai)振動(dong)試驗時樣(yang)(yang)品(pin)的(de)性能處(chu)(chu)于(yu)激活或穩(wen)定的(de)狀(zhuang)態，在(zai)此(ci)提出，預(yu)處(chu)(chu)理(li)失敗（如電池(chi)容量達不到要求）的(de)樣(yang)(yang)品(pin)是不能做振動(dong)試驗的(de)，作為不合格樣(yang)(yang)品(pin)返還電池(chi)制造(zao)商。

按電(dian)(dian)(dian)(dian)(dian)化學原理，動力(li)(li)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)的(de)(de)激活(huo)是指將電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)內(nei)部電(dian)(dian)(dian)(dian)(dian)解(jie)(jie)物質的(de)(de)電(dian)(dian)(dian)(dian)(dian)化學活(huo)性(xing)(xing)“喚醒(xing)”，電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)久而(er)不(bu)用(yong)，其內(nei)部電(dian)(dian)(dian)(dian)(dian)解(jie)(jie)物質活(huo)性(xing)(xing)往往會(hui)暫時性(xing)(xing)降低(di)(di)或(huo)暫時性(xing)(xing)停(ting)止，激活(huo)后(hou)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)又會(hui)處(chu)于正常狀(zhuang)態。在動力(li)(li)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)中，鋰(li)離(li)子(zi)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)占了大(da)部分，鋰(li)離(li)子(zi)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)在長(chang)(chang)時間擱置，長(chang)(chang)期大(da)電(dian)(dian)(dian)(dian)(dian)流充放電(dian)(dian)(dian)(dian)(dian)，或(huo)長(chang)(chang)時間非滿(man)電(dian)(dian)(dian)(dian)(dian)狀(zhuang)態使(shi)用(yong)情(qing)況下，電(dian)(dian)(dian)(dian)(dian)極活(huo)性(xing)(xing)材料在預處(chu)理的(de)(de)首(shou)次滿(man)充滿(man)放中，容(rong)易出現(xian)容(rong)量(liang)較(jiao)(jiao)低(di)(di)的(de)(de)現(xian)象(xiang)。因(yin)此需(xu)要進(jin)(jin)行標(biao)(biao)準充放電(dian)(dian)(dian)(dian)(dian)進(jin)(jin)行激活(huo)。且(qie)由于鋰(li)離(li)子(zi)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)真實荷電(dian)(dian)(dian)(dian)(dian)狀(zhuang)態受多種因(yin)素的(de)(de)影響，如(ru)在較(jiao)(jiao)低(di)(di)溫度(du)下，低(di)(di)溫導致電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)活(huo)性(xing)(xing)降低(di)(di)，動力(li)(li)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)陰極和陽(yang)極電(dian)(dian)(dian)(dian)(dian)極活(huo)性(xing)(xing)材料以及電(dian)(dian)(dian)(dian)(dian)解(jie)(jie)液等離(li)子(zi)擴散阻抗增加(jia)，電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)相對正常溫度(du)下荷電(dian)(dian)(dian)(dian)(dian)狀(zhuang)態會(hui)較(jiao)(jiao)低(di)(di)（同一開路(lu)電(dian)(dian)(dian)(dian)(dian)壓(ya)下）。如(ru)使(shi)用(yong)較(jiao)(jiao)高或(huo)較(jiao)(jiao)低(di)(di)的(de)(de)充放電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流調節電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)荷電(dian)(dian)(dian)(dian)(dian)狀(zhuang)態，也會(hui)因(yin)阻抗分壓(ya)較(jiao)(jiao)大(da)或(huo)過小而(er)導致荷電(dian)(dian)(dian)(dian)(dian)狀(zhuang)態不(bu)準。為了保證電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)樣(yang)品(pin)在測試前(qian)狀(zhuang)態的(de)(de)均一性(xing)(xing)，需(xu)要對動力(li)(li)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)進(jin)(jin)行標(biao)(biao)準化的(de)(de)預處(chu)理，使(shi)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)的(de)(de)狀(zhuang)態穩定(ding)。

振動試驗(yan)的電池樣品預處(chu)理(li)按GB38031標準(zhun)第7.2.2條(tiao)(tiao)(tiao)進行，在室溫條(tiao)(tiao)(tiao)件下(xia)，其中(zhong)的充(chong)(chong)放(fang)電電流都要求小于1/3的充(chong)(chong)放(fang)電倍率(lv)，不充(chong)(chong)不放(fang)的靜止(zhi)時(shi)間(jian)一般是30min，充(chong)(chong)放(fang)電截止(zhi)條(tiao)(tiao)(tiao)件由(you)電池制造商規定(ding)，或者(zhe)靜止(zhi)時(shi)間(jian)也按廠商規定(ding)。樣品預處(chu)理(li)過程中(zhong)，避免任何過充(chong)(chong)過放(fang)的操作(zuo)，以(yi)免影響振動試驗(yan)后的測試參數(shu)對比。

預處理通過的判定：

①樣品連(lian)續2次的(de)放電(dian)容(rong)量變化均不(bu)高于額定容(rong)量的(de)3%，預處理成功(gong)。

②樣品(pin)連續(xu)5次的充放電循(xun)環(huan)都正常，預(yu)處理成功。

整(zheng)個預(yu)處理的步(bu)驟見圖(tu)1樣品預(yu)處理流程示意圖(tu)。

圖1 樣品預處理流程示意圖

振(zhen)動(dong)試(shi)驗(yan)對(dui)電(dian)池(chi)的(de)化學物質的(de)活性(xing)有破(po)壞作用，在驗(yan)證其破(po)壞作用，就必須在振(zhen)動(dong)前先激(ji)活動(dong)力(li)電(dian)池(chi)并確認(ren)振(zhen)動(dong)前電(dian)池(chi)性(xing)能是穩定(ding)，即先做樣品的(de)預處理，以便做試(shi)驗(yan)前后的(de)測試(shi)數(shu)據對(dui)比(bi)，綜合(he)評估電(dian)池(chi)的(de)耐振(zhen)能力(li)。

試驗夾具和樣品固定方式的重要性

電池的(de)振動(dong)試驗涉(she)及到(dao)振動(dong)能量(liang)的(de)傳(chuan)播(bo)，這涉(she)及到(dao)能量(liang)的(de)傳(chuan)播(bo)方(fang)向(xiang)或路徑，試驗樣(yang)品安(an)(an)裝(zhuang)應符合GB/T2423.43的(de)要求(qiu)，如果(guo)樣(yang)品安(an)(an)裝(zhuang)方(fang)式不當(dang)，往(wang)往(wang)會改變振動(dong)能量(liang)的(de)真實(shi)傳(chuan)播(bo)，最(zui)終影響(xiang)到(dao)試驗結果(guo)。電池振動(dong)試驗的(de)能量(liang)傳(chuan)播(bo)方(fang)向(xiang)和路徑見圖(tu)2：振動(dong)能量(liang)傳(chuan)播(bo)示(shi)意圖(tu)。

圖2 振動能量傳播示意圖

 從圖2的傳播(bo)示意(yi)圖可(ke)以看出，試驗夾(jia)具和電池包固定板(支撐腳)對能量傳遞鏈條中起著關鍵的作用。

動力電池(chi)振動能量(liang)傳(chuan)播的(de)第一切入點是電池(chi)包(bao)的(de)固(gu)定板，在(zai)作螺(luo)釘固(gu)定時有(you)必要模(mo)擬(ni)裝車的(de)實況，固(gu)定板在(zai)電池(chi)包(bao)殼(ke)體的(de)布(bu)置狀況見(jian)圖3電池(chi)包(bao)的(de)支撐腳。

圖3 電池包的支撐腳

對(dui)于(yu)試驗夾具(ju)，必(bi)(bi)(bi)須(xu)確保其一階固有(you)頻(pin)(pin)率(lv)必(bi)(bi)(bi)須(xu)遠高(gao)于(yu)試驗頻(pin)(pin)率(lv)的(de)上(shang)限，例如(ru)(ru)GB38031振(zhen)動的(de)頻(pin)(pin)率(lv)上(shang)限是200Hz，那么夾具(ju)在試驗前必(bi)(bi)(bi)須(xu)先做頻(pin)(pin)率(lv)響應(ying)檢查，如(ru)(ru)果其三(san)個(ge)軸向的(de)一階固有(you)頻(pin)(pin)率(lv)均遠高(gao)于(yu)200Hz，試驗夾具(ju)才允許使用。

電(dian)池包固定(ding)板(外殼(ke)支(zhi)撐腳)是(shi)電(dian)池樣品的振(zhen)動應力(li)傳(chuan)輸路徑(jing)的最先導入(ru)點(dian)，試驗(yan)樣品的與振(zhen)動臺面耦合(he)安裝的固定(ding)位(wei)置和固定(ding)點(dian)數(shu)必須符合(he)裝車狀況(kuang)，或試驗(yan)樣品的與夾具耦合(he)安裝的固定(ding)位(wei)置和固定(ding)點(dian)數(shu)必須符合(he)裝車狀況(kuang)。

GB38031中(zhong)的(de)(de)振(zhen)動(dong)試(shi)驗(yan)要求都引用了(le)方(fang)法標準GB/T2423.10(正弦)和(he)GB2423.56（隨機），因此我們在(zai)做動(dong)力電(dian)池的(de)(de)振(zhen)動(dong)試(shi)驗(yan)前，先(xian)做頻響檢查，振(zhen)動(dong)試(shi)驗(yan)后(hou)再做頻響檢查，如果前后(hou)對應頻響數(shu)(shu)據(ju)變化較大(da)(da)，就意味著動(dong)力電(dian)池結(jie)構的(de)(de)固有頻率(lv)發生明(ming)顯的(de)(de)向(xiang)下漂(piao)移，這(zhe)說(shuo)明(ming)電(dian)池結(jie)構的(de)(de)剛(gang)度發生了(le)較大(da)(da)幅(fu)度的(de)(de)降低，結(jie)構剛(gang)度也會影響動(dong)力電(dian)池的(de)(de)安全(quan)。或者說(shuo)對頻響數(shu)(shu)據(ju)有可疑之處(chu)，企(qi)業應盡早進行(xing)(xing)摸底和(he)驗(yan)證試(shi)驗(yan)，在(zai)產品設(she)計階(jie)段及(ji)時進行(xing)(xing)調整。

試驗監控儀器的準備

GB38031標(biao)準中的(de)振動(dong)試(shi)驗(yan)過(guo)程，動(dong)力電(dian)(dian)(dian)池(chi)是有(you)一(yi)定荷電(dian)(dian)(dian)狀態SOC，不能(neng)排除電(dian)(dian)(dian)壓（包括電(dian)(dian)(dian)池(chi)單體(ti)）會出現異常(chang)，即(ji)振動(dong)試(shi)驗(yan)期(qi)間發(fa)生電(dian)(dian)(dian)壓銳(rui)變，因此有(you)必(bi)要對(dui)動(dong)力電(dian)(dian)(dian)池(chi)進行電(dian)(dian)(dian)壓實時監控。另外，在(zai)(zai)試(shi)驗(yan)過(guo)程中，不能(neng)排除包括電(dian)(dian)(dian)池(chi)單體(ti)在(zai)(zai)內的(de)出現熱失控，同理，也有(you)必(bi)要對(dui)動(dong)力電(dian)(dian)(dian)池(chi)進行溫度實時監控。振動(dong)試(shi)驗(yan)前就(jiu)應該準備(bei)好電(dian)(dian)(dian)壓和溫度等(deng)監控裝置(zhi)，如發(fa)生廠商(shang)規定量值得電(dian)(dian)(dian)壓銳(rui)變，就(jiu)應停止試(shi)驗(yan)，意味著振動(dong)試(shi)驗(yan)的(de)失敗(bai)。

GB38031的(de)第6.2條對監控測(ce)量儀器提出了準(zhun)(zhun)確(que)度的(de)要求，振動試(shi)驗前應該(gai)確(que)認，電壓(ya)測(ce)量裝置的(de)準(zhun)(zhun)確(que)度不(bu)低(di)于滿篇刻度的(de)±0.5%，溫度測(ce)量裝置的(de)準(zhun)(zhun)確(que)度不(bu)低(di)于±0.5℃。

電池的(de)振(zhen)(zhen)動(dong)(dong)試(shi)驗(yan)有(you)振(zhen)(zhen)動(dong)(dong)能量的(de)傳播，振(zhen)(zhen)動(dong)(dong)試(shi)驗(yan)還(huan)是(shi)破壞性試(shi)驗(yan)，不排除(chu)試(shi)驗(yan)過程出(chu)現熱(re)失控而(er)發生(sheng)火災，因此，振(zhen)(zhen)動(dong)(dong)試(shi)驗(yan)過程有(you)必要在振(zhen)(zhen)動(dong)(dong)試(shi)驗(yan)臺附近配置滅火器具。

振動(dong)試(shi)驗前，監控流程(cheng)布局(ju)要求(qiu)應(ying)按圖(tu)4：振動(dong)試(shi)驗過程(cheng)監控示意圖(tu)。

圖4 振動試驗過程監控示意圖。

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