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style="font-family:'微軟雅黑','sans-serif'">相同的或者更佳的額定功率。</span></p><p>1.3.1.2 <span style="font-family:'微軟雅黑','sans-serif'">只允許合格的工程技術(shù)人員連接（加工中心</span>/<span style="font-family:'微軟雅黑','sans-serif'">鉆攻中心</span>/<span style="font-family:'微軟雅黑','sans-serif'">龍門銑床）的電路。</span></p><p>1.3.1.3 <span style="font-family:'微軟雅黑','sans-serif'">不連接任何可能對(duì)（加工中心</span>/<span style="font-family:'微軟雅黑','sans-serif'">鉆攻中心</span>/<span style="font-family:'微軟雅黑','sans-serif'">龍門銑床）的配電盤產(chǎn)生信號(hào)噪聲的電力電路。</span></p><p>1.3.1.4 <span style="font-family:'微軟雅黑','sans-serif'">不將（加工中心</span>/<span style="font-family:'微軟雅黑','sans-serif'">鉆攻中心</span>/<span style="font-family:'微軟雅黑','sans-serif'">龍門銑床）的電力電線連接到可能引起急劇的電壓降的任何電源或配電盤上。</span></p><p><strong> </strong></p><p><strong>1.3.2 </strong><strong><span style="font-family:'微軟雅黑','sans-serif'">接地</span></strong></p><p><span style="font-family:'微軟雅黑','sans-serif'">接地引線的最小橫斷面面積是</span>14<span style="font-family:'微軟雅黑','sans-serif'">平方毫米。接地線的阻抗小于</span>100<span style="font-family: '微軟雅黑','sans-serif'">歐姆。接地線的尺寸大于美國(guó)線規(guī)</span>5<span style="font-family:'微軟雅黑','sans-serif'">號(hào)和英國(guó)標(biāo)準(zhǔn)線規(guī)</span>6<span style="font-family:'微軟雅黑','sans-serif'">號(hào)。（確保這臺(tái)數(shù)控（加工中心</span>/<span style="font-family: '微軟雅黑','sans-serif'">鉆攻中心</span>/<span style="font-family:'微軟雅黑','sans-serif'">龍門銑床）同單獨(dú)的接地棒接地。）倘若沒有這種安排</span>, <span style="font-family:'微軟雅黑','sans-serif'">則根據(jù)下列說明為這臺(tái)（加工中心</span>/<span style="font-family:'微軟雅黑','sans-serif'">鉆攻中心</span>/<span style="font-family:'微軟雅黑','sans-serif'">龍門銑床）接地：</span></p><p style="margin-left:59px">1.3.2.1 <span style="font-family:'微軟雅黑','sans-serif'">這臺(tái)（加工中心</span>/<span style="font-family:'微軟雅黑','sans-serif'">鉆攻中心</span>/<span style="font-family:'微軟雅黑','sans-serif'">龍門銑床）的接地線單獨(dú)連接到（加工中心</span>/<span style="font-family:'微軟雅黑','sans-serif'">鉆攻中心</span>/<span style="font-family:'微軟雅黑','sans-serif'">龍門銑床）本身的接地端子上。這種安排可以防止外部接地過載電流進(jìn)入這臺(tái)（加工中心</span>/<span style="font-family:'微軟雅黑','sans-serif'">鉆攻中心</span>/<span style="font-family:'微軟雅黑','sans-serif'">龍門銑床）。這種過載電流可能使（加工中心</span>/<span style="font-family:'微軟雅黑','sans-serif'">鉆攻中心</span>/<span style="font-family:'微軟雅黑','sans-serif'">龍門銑床）嚴(yán)重受損，因此加以禁止。</span></p><p style="margin-left:59px">1.3.2.2 <span style="font-family:'微軟雅黑','sans-serif'">鋼筋混凝土棒用作接地端子</span>, <span style="font-family: '微軟雅黑','sans-serif'">因?yàn)樗慕拥仉娮韬艿停ㄐ∮?/span>100<span style="font-family:'微軟雅黑','sans-serif'">歐姆）。如果照此辦理</span>, <span style="font-family:'微軟雅黑','sans-serif'">則按照下列說明進(jìn)行連接。將接地線連接到其它類型的接地端子時(shí)</span>, <span style="font-family:'微軟雅黑','sans-serif'">下列說明也仍然有效。</span></p><p>1.3.2.3 <span style="font-family:'微軟雅黑','sans-serif'">不要同其它設(shè)備</span>, <span style="font-family:'微軟雅黑','sans-serif'">例如電焊機(jī)和高頻感應(yīng)機(jī)器分享這臺(tái)（加工中心</span>/<span style="font-family:'微軟雅黑','sans-serif'">鉆攻中心</span>/<span style="font-family:'微軟雅黑','sans-serif'">龍門銑床）的接地端子。</span> </p><p>1.3.2.4 <span style="font-family:'微軟雅黑','sans-serif'">確保接地端子的額定功率同這臺(tái)（加工中心</span>/<span style="font-family:'微軟雅黑','sans-serif'">鉆攻中心</span>/<span style="font-family:'微軟雅黑','sans-serif'">龍門銑床）的額定功率兼容。</span></p><p>1.3.2.5 <span style="font-family:'微軟雅黑','sans-serif'">總是應(yīng)用具有起碼長(zhǎng)度的絕緣的接地線。</span></p><p>1.3.2.6 <span style="font-family:'微軟雅黑','sans-serif'">如果僅僅連接一臺(tái)設(shè)備</span>, <span style="font-family:'微軟雅黑','sans-serif'">則需測(cè)量接地設(shè)備的接地阻抗。電阻小于</span>100<span style="font-family:'微軟雅黑','sans-serif'">歐姆。</span></p><p style="margin-left:59px">1.3.2.7 <span style="font-family:'微軟雅黑','sans-serif'">倘為單獨(dú)的接地布置</span>, <span style="font-family: '微軟雅黑','sans-serif'">則參看插圖</span>1<span style="font-family:'微軟雅黑','sans-serif'">。這種連接方式的接地阻抗小于</span>100<span style="font-family:'微軟雅黑','sans-serif'">歐姆。倘為并行的接地布置</span>, <span style="font-family: '微軟雅黑','sans-serif'">則參看插圖</span>2<span style="font-family:'微軟雅黑','sans-serif'">。采用這種接地方式</span>, <span style="font-family:'微軟雅黑','sans-serif'">接地電阻等于或小于</span>100<span style="font-family: '微軟雅黑','sans-serif'">歐姆。</span></p><p> </p><p><sup><span style="font-family:'微軟雅黑','sans-serif'">★★</span></sup><sup> </sup><strong><span style="font-family:宋體"> </span></strong><strong><span style="font-family:'微軟雅黑','sans-serif'">禁止采用插圖</span></strong><strong><span style="font-family:宋體">3</span></strong><strong><span style="font-family:'微軟雅黑','sans-serif'">示出的串連接地布置。</span></strong></p><p></p><p><strong><img src="/upload/images/201711/15110616329866.jpeg" title="15110616329866.jpeg" alt="image2.jpeg"/></strong></p><p><strong>1.3.3 </strong><strong><span style="font-family: '微軟雅黑','sans-serif'">環(huán)境條件</span></strong></p><p><span style="font-family:'微軟雅黑','sans-serif'">建議的安裝這臺(tái)（加工中心</span>/<span style="font-family:'微軟雅黑','sans-serif'">鉆攻中心</span>/<span style="font-family:'微軟雅黑','sans-serif'">龍門銑床）的操作條件和環(huán)境條件如下。盡管如此</span>, <span style="font-family:'微軟雅黑','sans-serif'">這些條件隨著時(shí)間和季節(jié)的變化而有所不同。</span></p><p>1.3.3.1 <span style="font-family:'微軟雅黑','sans-serif'">電源電壓</span> – <span style="font-family:'微軟雅黑','sans-serif'">額定電壓的</span>85% <span style="font-family:'微軟雅黑','sans-serif'">至</span>110%<span style="font-family:'微軟雅黑','sans-serif'">。</span></p><p>1.3.3.2 <span style="font-family:'微軟雅黑','sans-serif'">電源頻率</span> – <span style="font-family:'微軟雅黑','sans-serif'">（額定頻率</span><span style="font-family:'微軟雅黑','sans-serif'">±</span><span style="font-family:宋體">2</span><span style="font-family:'微軟雅黑','sans-serif'">）</span>Hz</p><p>1.3.3.3 <span style="font-family:'微軟雅黑','sans-serif'">環(huán)境溫度</span> – 0<span style="font-family:'微軟雅黑','sans-serif'">℃</span> <span style="font-family:'微軟雅黑','sans-serif'">至</span><span style="font-family:宋體">45</span><span style="font-family:'微軟雅黑','sans-serif'">℃（</span><span style="font-family:宋體"> 32 </span><span style="font-family:'微軟雅黑','sans-serif'">℉</span> <span style="font-family:'微軟雅黑','sans-serif'">至</span><span style="font-family:宋體">113</span><span style="font-family:'微軟雅黑','sans-serif'">℉）。</span></p><p style="margin-left:59px">1.3.3.4 <span style="font-family:'微軟雅黑','sans-serif'">相對(duì)濕度</span> – <span style="font-family:'微軟雅黑','sans-serif'">小于</span>90%<span style="font-family:'微軟雅黑','sans-serif'">。水汽由于溫度交替變換而凝結(jié)成水滴</span>, <span style="font-family:'微軟雅黑','sans-serif'">這種現(xiàn)象是不能接受的。</span></p><p>1.3.3.5 <span style="font-family:'微軟雅黑','sans-serif'">使（加工中心</span>/<span style="font-family:'微軟雅黑','sans-serif'">鉆攻中心</span>/<span style="font-family:'微軟雅黑','sans-serif'">龍門銑床）遠(yuǎn)離過量的灰塵和腐蝕物質(zhì)。</span></p><p style="margin-left:59px">1.3.3.6 <span style="font-family:'微軟雅黑','sans-serif'">不要讓（加工中心</span>/<span style="font-family:'微軟雅黑','sans-serif'">鉆攻中心</span>/<span style="font-family:'微軟雅黑','sans-serif'">龍門銑床）直接暴露在太陽光或熱源下。太陽光或熱源會(huì)導(dǎo)致環(huán)境溫度發(fā)生明顯變化。</span></p><p>1.3.3.7 <span 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