一，低溫試驗方法

1，非散熱試驗樣品溫度漸變(bian)的低溫試驗：將試(shi)(shi)驗(yan)(yan)樣品(pin)放(fang)入溫(wen)(wen)(wen)度(du)(du)為試(shi)(shi)驗(yan)(yan)室溫(wen)(wen)(wen)度(du)(du)的(de)(de)試(shi)(shi)驗(yan)(yan)箱中，然(ran)后(hou)將溫(wen)(wen)(wen)度(du)(du)調節到符合(he)相(xiang)關規(gui)(gui)范規(gui)(gui)定(ding)(ding)(ding)(ding)的(de)(de)嚴酷等級溫(wen)(wen)(wen)度(du)(du)。當試(shi)(shi)驗(yan)(yan)樣品(pin)溫(wen)(wen)(wen)度(du)(du)達(da)到穩定(ding)(ding)(ding)(ding)后(hou)，在該(gai)條件下(xia)暴露到規(gui)(gui)定(ding)(ding)(ding)(ding)的(de)(de)持(chi)續時間。對于試(shi)(shi)驗(yan)(yan)時需(xu)要(yao)通(tong)電(dian)運(yun)行(xing)的(de)(de)試(shi)(shi)驗(yan)(yan)樣品(pin)，應(ying)在試(shi)(shi)驗(yan)(yan)樣品(pin)溫(wen)(wen)(wen)度(du)(du)達(da)到穩定(ding)(ding)(ding)(ding)后(hou)通(tong)電(dian)，根據需(xu)要(yao)進行(xing)功能檢測。這種情況(kuang)下(xia)，可能還需(xu)要(yao)一段(duan)時間達(da)到溫(wen)(wen)(wen)度(du)(du)穩定(ding)(ding)(ding)(ding)，然(ran)后(hou)試(shi)(shi)驗(yan)(yan)樣品(pin)在該(gai)低溫(wen)(wen)(wen)條件下(xia)暴露到相(xiang)關規(gui)(gui)范規(gui)(gui)定(ding)(ding)(ding)(ding)的(de)(de)持(chi)續時間。試(shi)(shi)驗(yan)(yan)樣品(pin)通(tong)常(chang)在非(fei)工作狀(zhuang)態下(xia)進行(xing)試(shi)(shi)驗(yan)(yan)。本試(shi)(shi)驗(yan)(yan)通(tong)常(chang)采用高氣(qi)流循(xun)環。

2，散熱試(shi)驗樣品溫(wen)(wen)度(du)漸變的低溫(wen)(wen)試(shi)驗——試(shi)驗樣品在(zai)溫(wen)(wen)度(du)開始穩定后(hou)通電：如(ru)果(guo)需要(yao)，可通(tong)(tong)過試驗(yan)(yan)(yan)確(que)定(ding)(ding)試驗(yan)(yan)(yan)箱能(neng)否滿足低氣(qi)流(liu)速度(du)(du)的(de)要(yao)求。將(jiang)試驗(yan)(yan)(yan)樣(yang)品(pin)(pin)放入(ru)溫(wen)(wen)(wen)(wen)度(du)(du)為試驗(yan)(yan)(yan)室溫(wen)(wen)(wen)(wen)度(du)(du)等等試驗(yan)(yan)(yan)箱中，然后將(jiang)溫(wen)(wen)(wen)(wen)度(du)(du)調節到(dao)符合(he)相(xiang)關規(gui)(gui)范規(gui)(gui)定(ding)(ding)的(de)嚴酷等級(ji)溫(wen)(wen)(wen)(wen)度(du)(du)。給試驗(yan)(yan)(yan)樣(yang)品(pin)(pin)通(tong)(tong)電(dian)或(huo)加電(dian)負(fu)載，檢查試驗(yan)(yan)(yan)樣(yang)品(pin)(pin)以確(que)定(ding)(ding)其(qi)功能(neng)是否符合(he)相(xiang)關規(gui)(gui)范要(yao)求。試驗(yan)(yan)(yan)樣(yang)品(pin)(pin)應按(an)照相(xiang)關規(gui)(gui)范規(gui)(gui)定(ding)(ding)的(de)工作(zuo)循環和負(fu)載條(tiao)(tiao)件處于運(yun)行狀態。當(dang)試驗(yan)(yan)(yan)樣(yang)品(pin)(pin)的(de)溫(wen)(wen)(wen)(wen)度(du)(du)達到(dao)穩定(ding)(ding)后，在該條(tiao)(tiao)件下暴露到(dao)相(xiang)關規(gui)(gui)范規(gui)(gui)定(ding)(ding)的(de)持續(xu)時間。本試驗(yan)(yan)(yan)通(tong)(tong)常采用低氣(qi)流(liu)速度(du)(du)循環。

3，散(san)熱(re)試(shi)驗樣品溫(wen)度(du)漸變的低溫(wen)試(shi)驗——試(shi)驗樣品在整個試(shi)驗過程通電(dian)：如果需要(yao)，可(ke)通過試驗確定(ding)試驗箱能否(fou)滿足(zu)低(di)氣(qi)流(liu)(liu)速度的(de)要(yao)求。將(jiang)試驗樣品放入溫(wen)度為(wei)試驗室溫(wen)度等(deng)等(deng)試驗箱中。給試驗樣品通電(dian)并根據需要(yao)進行(xing)功能檢測。然后將(jiang)溫(wen)度調節到符合(he)相關規(gui)范(fan)規(gui)定(ding)的(de)嚴酷等(deng)級溫(wen)度。當(dang)試驗樣品的(de)溫(wen)度達到穩(wen)定(ding)后，在該(gai)條件下暴露到規(gui)定(ding)的(de)持續時間。本試驗通常采用(yong)低(di)氣(qi)流(liu)(liu)速度循(xun)環。

 二，高溫試驗方法

1，非散熱試驗樣品(pin)溫(wen)度漸變的高溫(wen)溫(wen)試驗：將(jiang)試(shi)(shi)驗(yan)(yan)(yan)樣(yang)品(pin)(pin)放入溫(wen)(wen)(wen)(wen)度(du)(du)(du)為試(shi)(shi)驗(yan)(yan)(yan)室溫(wen)(wen)(wen)(wen)度(du)(du)(du)的試(shi)(shi)驗(yan)(yan)(yan)箱中，然后將(jiang)溫(wen)(wen)(wen)(wen)度(du)(du)(du)調節到符合相(xiang)關規(gui)范規(gui)定(ding)(ding)(ding)的嚴(yan)酷等級溫(wen)(wen)(wen)(wen)度(du)(du)(du)。當試(shi)(shi)驗(yan)(yan)(yan)樣(yang)品(pin)(pin)溫(wen)(wen)(wen)(wen)度(du)(du)(du)達(da)到穩(wen)定(ding)(ding)(ding)后，在(zai)該(gai)條(tiao)件下(xia)(xia)暴(bao)露到規(gui)定(ding)(ding)(ding)的持續(xu)時間。對(dui)于試(shi)(shi)驗(yan)(yan)(yan)時需(xu)要(yao)通電運行的試(shi)(shi)驗(yan)(yan)(yan)樣(yang)品(pin)(pin)，應在(zai)試(shi)(shi)驗(yan)(yan)(yan)樣(yang)品(pin)(pin)溫(wen)(wen)(wen)(wen)度(du)(du)(du)達(da)到穩(wen)定(ding)(ding)(ding)后通電，根據需(xu)要(yao)進行功能檢測。這種情(qing)況下(xia)(xia)，可能還需(xu)要(yao)一段時間達(da)到溫(wen)(wen)(wen)(wen)度(du)(du)(du)穩(wen)定(ding)(ding)(ding)，然后試(shi)(shi)驗(yan)(yan)(yan)樣(yang)品(pin)(pin)在(zai)該(gai)高溫(wen)(wen)(wen)(wen)條(tiao)件下(xia)(xia)暴(bao)露到相(xiang)關規(gui)范規(gui)定(ding)(ding)(ding)的持續(xu)時間。試(shi)(shi)驗(yan)(yan)(yan)樣(yang)品(pin)(pin)通常在(zai)非(fei)工作狀態下(xia)(xia)進行試(shi)(shi)驗(yan)(yan)(yan)。本(ben)試(shi)(shi)驗(yan)(yan)(yan)通常采用高氣流循環。

2，散熱(re)試(shi)(shi)驗樣品溫(wen)(wen)度漸(jian)變的高溫(wen)(wen)試(shi)(shi)驗——試(shi)(shi)驗樣品在(zai)升溫(wen)(wen)調節期不通電：如(ru)果需要(yao)，可通過(guo)試(shi)驗(yan)(yan)確(que)定(ding)試(shi)驗(yan)(yan)箱能否滿足(zu)低(di)氣(qi)流(liu)速(su)度(du)(du)(du)的要(yao)求。將試(shi)驗(yan)(yan)樣(yang)品(pin)放(fang)入溫(wen)(wen)度(du)(du)(du)為試(shi)驗(yan)(yan)室溫(wen)(wen)度(du)(du)(du)等等試(shi)驗(yan)(yan)箱中，然后將溫(wen)(wen)度(du)(du)(du)調節到(dao)符合相關規(gui)范(fan)規(gui)定(ding)的嚴酷(ku)等級溫(wen)(wen)度(du)(du)(du)。給試(shi)驗(yan)(yan)樣(yang)品(pin)通電(dian)。當(dang)試(shi)驗(yan)(yan)樣(yang)品(pin)的溫(wen)(wen)度(du)(du)(du)達到(dao)穩定(ding)后，在該條(tiao)件(jian)下暴露(lu)到(dao)相關規(gui)范(fan)規(gui)定(ding)的持續(xu)時(shi)間。本(ben)試(shi)驗(yan)(yan)通常采用低(di)氣(qi)流(liu)速(su)度(du)(du)(du)循環。

3，散熱試(shi)(shi)(shi)驗(yan)(yan)(yan)樣品溫度漸變(bian)的高(gao)溫試(shi)(shi)(shi)驗(yan)(yan)(yan)——試(shi)(shi)(shi)驗(yan)(yan)(yan)樣品在(zai)整個試(shi)(shi)(shi)驗(yan)(yan)(yan)過程(cheng)通電：如(ru)果(guo)需(xu)要(yao)，可(ke)通過試(shi)驗確定(ding)試(shi)驗箱(xiang)能否滿足(zu)低氣流(liu)速度(du)的(de)(de)要(yao)求。將試(shi)驗樣品放入(ru)溫(wen)度(du)為試(shi)驗室(shi)溫(wen)度(du)等等試(shi)驗箱(xiang)中。給試(shi)驗樣品通電并根據需(xu)要(yao)進行功能檢測。然后將溫(wen)度(du)調節到(dao)符合相關規范(fan)規定(ding)的(de)(de)嚴酷等級溫(wen)度(du)。當試(shi)驗樣品的(de)(de)溫(wen)度(du)達到(dao)穩定(ding)后，在該條件下(xia)暴露(lu)到(dao)規定(ding)的(de)(de)持續時間。本試(shi)驗通常(chang)采用低氣流(liu)速度(du)循環(huan)。