TPM設(she)備(bei)(bei)(bei)(bei)管理(li)(li)中的(de)關鍵(jian)績效指(zhi)標(biao)。設(she)備(bei)(bei)(bei)(bei)管理(li)(li)要(yao)進步,其水平也需要(yao)度(du)量(liang)(liang)。在(zai)企業里用(yong)(yong)(yong)(yong)于度(du)量(liang)(liang)設(she)備(bei)(bei)(bei)(bei)管理(li)(li)好壞的(de)指(zhi)標(biao)很多,例如設(she)備(bei)(bei)(bei)(bei)的(de)可(ke)利用(yong)(yong)(yong)(yong)率(lv)(lv)、設(she)備(bei)(bei)(bei)(bei)綜合效率(lv)(lv)、設(she)備(bei)(bei)(bei)(bei)故(gu)障率(lv)(lv)、平均(jun)故(gu)障間(jian)(jian)隔期、平均(jun)修理(li)(li)時(shi)(shi)間(jian)(jian)、設(she)備(bei)(bei)(bei)(bei)備(bei)(bei)(bei)(bei)件(jian)庫存(cun)周轉率(lv)(lv)等等。不(bu)同的(de)指(zhi)標(biao)用(yong)(yong)(yong)(yong)于度(du)量(liang)(liang)不(bu)同的(de)管理(li)(li)方(fang)(fang)向(xiang),設(she)備(bei)(bei)(bei)(bei)的(de)可(ke)用(yong)(yong)(yong)(yong)率(lv)(lv)在(zai)西方(fang)(fang)采用(yong)(yong)(yong)(yong)較多。而在(zai)我國,有計劃時(shi)(shi)間(jian)(jian)利用(yong)(yong)(yong)(yong)率(lv)(lv)和日(ri)歷(li)時(shi)(shi)間(jian)(jian)利用(yong)(yong)(yong)(yong)率(lv)(lv)兩種不(bu)同的(de)提法。按照定義,西方(fang)(fang)定義的(de)可(ke)以用(yong)(yong)(yong)(yong)率(lv)(lv)實際上是日(ri)歷(li)時(shi)(shi)間(jian)(jian)利用(yong)(yong)(yong)(yong)率(lv)(lv)。
日歷(li)時(shi)(shi)間(jian)利(li)(li)用(yong)率(lv)等(deng)于實際工(gong)作時(shi)(shi)間(jian)除(chu)以日歷(li)時(shi)(shi)間(jian),計(ji)(ji)劃時(shi)(shi)間(jian)利(li)(li)用(yong)率(lv)等(deng)于十(shi)次(ci),工(gong)作時(shi)(shi)間(jian)除(chu)以計(ji)(ji)劃工(gong)作時(shi)(shi)間(jian)。前者反映了設(she)(she)備(bei)(bei)的完全利(li)(li)用(yong)狀態(tai)。也(ye)就(jiu)是(shi)即(ji)使(shi)是(shi)單班運(yun)行的設(she)(she)備(bei)(bei),我們也(ye)要按(an)照24小時(shi)(shi)計(ji)(ji)算日歷(li)時(shi)(shi)間(jian)。因為無論工(gong)廠是(shi)否(fou)使(shi)用(yong)這臺(tai)設(she)(she)備(bei)(bei),都以折舊形式消耗著(zhu)企業的資(zi)產,后者反映了設(she)(she)備(bei)(bei)的計(ji)(ji)劃利(li)(li)用(yong)狀況,如果是(shi)單班運(yun)行,其計(ji)(ji)劃時(shi)(shi)間(jian)就(jiu)是(shi)8小時(shi)(shi),而設(she)(she)備(bei)(bei)的平均故障間(jian)隔期也(ye)做平均無故障時(shi)(shi)間(jian)。它與故障停機率(lv)互(hu)補(bu),也(ye)反映了故障頻次(ci),也(ye)就(jiu)是(shi)設(she)(she)備(bei)(bei)的健康狀態(tai)。
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