【振(zhen)動(dong)電機(ji)】振(zhen)動(dong)電機(ji)種(zhong)類有哪些 振(zhen)動(dong)電機(ji)如(ru)何安(an)裝

振動電機種類有哪些

按照使用場合，可分為普通振動電機和防爆振動電機(explosion proof vibration motor)。

按照安裝結構，可分為臥式振(zhen)動電(dian)機和(he)立式振(zhen)動電(dian)機。

1、YLJ、YLJO、YLJF、YLJD、YLJT、YLEJC、YLEJF系(xi)列(lie)三(san)相異步力矩(ju)電(dian)機。

2、XJD、YZS、JZO、YZVP系(xi)列三相異步振動電機(ji)。

3、YEJ、YDEJ系列三相異(yi)步電(dian)磁制動電(dian)機。

4、YVP、YZPBF、YZPBEJ系列(lie)變頻調速(su)電動機及起重(zhong)冶金專用(yong)變頻調速(su)電機。

5、YD、YDT、YZD、YZTD系列多速及塔吊專(zhuan)用電動機。

6、YZO、YZUL、WTZD、YZS、WVB系列振動電機

7、 XC-L XC-B 系列(lie)振動(dong)電機

YZO系列振動電機的應用:

YZO系列振(zhen)(zhen)(zhen)動電(dian)機廣泛應(ying)用于(yu)水電(dian)建(jian)設、火力發電(dian)、建(jian)筑、建(jian)材、化(hua)工、采(cai)礦、煤炭、冶金、輕工等(deng)工業(ye)部門(men)。振(zhen)(zhen)(zhen)動電(dian)機除了(le)可以(yi)應(ying)用與一(yi)般振(zhen)(zhen)(zhen)動機械外(wai)，還可以(yi)組合多種振(zhen)(zhen)(zhen)動形式。如：平(ping)旋型(xing)(xing)(xing)(xing)，渦旋型(xing)(xing)(xing)(xing)，搖動振(zhen)(zhen)(zhen)動型(xing)(xing)(xing)(xing)，組合直線型(xing)(xing)(xing)(xing)，組合長(chang)橢圓型(xing)(xing)(xing)(xing)，復合雙頻型(xing)(xing)(xing)(xing)，復合雙幅型(xing)(xing)(xing)(xing)等(deng)。由這些(xie)振(zhen)(zhen)(zhen)動形式可以(yi)產一(yi)些(xie)過去所(suo)沒有(you)的新(xin)型(xing)(xing)(xing)(xing)振(zhen)(zhen)(zhen)動機械。

YZO系列振動電機的特點:

1、維護保養(yang)簡(jian)便。

2、機體強度大，噪(zao)音低。

3、激振力與出力配(pei)合適(shi)當，激振力大。

4、可按照(zhao)不(bu)同的(de)用途選擇振動頻率和振幅。

5、規格齊全(quan)，能滿足各類振動機械的工作需要。

6、可根據振(zhen)動電機的安(an)裝方(fang)式改變(bian)激振(zhen)力的方(fang)向。

7、只須調整(zheng)偏心塊(kuai)的夾角(jiao)，就可無(wu)級調整(zheng)激振力。

8、全封閉結構(gou)，可(ke)在任何無防爆要求的粉塵條件下工作。

YZO系列振動電機技術參數表:　

YZU系列振動電機使用條件：

環(huan)境溫(wen)度：-20℃~+40℃

海拔：<1000 m

電壓：380 V

接法：Y/△

絕緣(yuan)等級(ji)(ji)(ji)：B級(ji)(ji)(ji)或F級(ji)(ji)(ji)

電源頻率(lv)：50 Hz

工作方式：連續

安裝方式：任意(yi)方向

振動加速度(du)： 不超過20G(G為重力加速度(du)）；

環境溫度：-20℃--40℃(超過40℃應降低功率(lv)使用）；

主(zhu)機激振功率：不超過銘牌的規定(ding)，（否則應降低激振力(li)使用）；

地理位置：海拔不超過(guo)1000米(mi)，（如超過(guo)1000米(mi)，但不超過(guo)4000米(mi)時，每增加(jia)100米(mi)，額(e)定溫度限(xian)值應降低0.5℃）。

額(e)定溫(wen)升：65℃

額定電壓：380V

額定頻率：50HZ　

絕緣等級：B

相數：3　

接法：Y/△　

工(gong)作方式(shi)：連續（S1）　

安裝(zhuang)方式：任意方向防(fang)護等級：IP55 具體資(zi)料

振動電機型號（型號說明）

電機的產品型號由產品代號、規格代號、特殊環境代號以及補充代號等四個部分組成，并按以下順序排列：振動電機產品代號振動電機產品代號又由電機類型代號、電機特點代號、設計序號和勵磁方式代號等四個小節按順序組成。我國的振動電機類型代號采用漢語拼音來表示各種不同類型的電機，振動電機是各類振動機械的通用激振源，可廣泛應用于礦山、冶金、煤炭、電力、建筑材料、化工、鑄造、輕工食品、醫藥、糧食、水泥、港口、鐵路、除塵、涂裝、PCB電(dian)(dian)(dian)鍍(du)等(deng)行(xing)業。為各(ge)類振(zhen)動(dong)篩、振(zhen)動(dong)給料機(ji)、振(zhen)動(dong)光飾處理機(ji)、振(zhen)實(shi)臺和(he)(he)料倉破拱、防(fang)(fang)閉塞(sai)裝置等(deng)振(zhen)動(dong)機(ji)械作(zuo)振(zhen)動(dong)源。具(ju)有重量輕、體積小(xiao)激(ji)振(zhen)力調整方便(bian)，絕(jue)緣等(deng)級和(he)(he)防(fang)(fang)護等(deng)級高(gao)，多臺共用同(tong)步效果好等(deng)特(te)(te)點(dian)。致力于(yu)振(zhen)動(dong)電(dian)(dian)(dian)機(ji)、力矩(ju)電(dian)(dian)(dian)機(ji)、調速電(dian)(dian)(dian)機(ji)等(deng)特(te)(te)種電(dian)(dian)(dian)機(ji)的研發(fa)和(he)(he)生產。特(te)(te)殊(shu)設計系列還(huan)能(neng)滿足防(fang)(fang)水(shui)、防(fang)(fang)腐蝕耐酸(suan)堿等(deng)要(yao)求。電(dian)(dian)(dian)機(ji)特(te)(te)點(dian)代(dai)(dai)號(hao)表示電(dian)(dian)(dian)機(ji)的性能(neng)、結構或用途等(deng)，采用漢語拼音字母標(biao)注。對于(yu)防(fang)(fang)爆電(dian)(dian)(dian)機(ji)，代(dai)(dai)表肪烴類型(xing)的字母A(增安型(xing))、B(隔(ge)爆型(xing))和(he)(he)ZY(正壓(ya)型(xing))應標(biao)于(yu)電(dian)(dian)(dian)機(ji)的特(te)(te)點(dian)代(dai)(dai)號(hao)首位，即緊接在電(dian)(dian)(dian)機(ji)類型(xing)代(dai)(dai)號(hao)后面(mian)標(biao)注。

設(she)(she)計(ji)(ji)(ji)(ji)序號是指電機產品設(she)(she)計(ji)(ji)(ji)(ji)的(de)(de)順序，用阿拉(la)伯數字(zi)(zi)表示。對于(yu)第(di)一次(ci)設(she)(she)計(ji)(ji)(ji)(ji)的(de)(de)產品不(bu)標(biao)注(zhu)設(she)(she)計(ji)(ji)(ji)(ji)序號，派(pai)生系列設(she)(she)計(ji)(ji)(ji)(ji)序號按基本系列標(biao)注(zhu)，專用系列按本身設(she)(she)計(ji)(ji)(ji)(ji)的(de)(de)順序標(biao)注(zhu)。勵(li)磁(ci)方式(shi)(shi)代(dai)號用漢語(yu)拼音字(zi)(zi)母標(biao)注(zhu)，其中s表示三次(ci)諧(xie)波勵(li)磁(ci)、J表示晶閘管勵(li)磁(ci)、x表示相復(fu)勵(li)勵(li)磁(ci)，并(bing)應標(biao)注(zhu)于(yu)設(she)(she)計(ji)(ji)(ji)(ji)序號之后。當不(bu)必標(biao)注(zhu)設(she)(she)計(ji)(ji)(ji)(ji)序號時，則(ze)標(biao)于(yu)特點代(dai)號之后，并(bing)用短(duan)線分開。振動(dong)機械設(she)(she)備(bei)利用振動(dong)電機作為簡單可(ke)靠而有(you)效(xiao)的(de)(de)動(dong)力。振動(dong)電機在振動(dong)體上(shang)按照不(bu)同(tong)的(de)(de)安(an)裝組(zu)合形式(shi)(shi)，可(ke)產生不(bu)同(tong)的(de)(de)振動(dong)軌(gui)跡，從而有(you)效(xiao)完成各種(zhong)作業。振動(dong)電機主要有(you)以(yi)下運(yun)行軌(gui)跡：

復合振動

振(zhen)(zhen)動(dong)體的(de)(de)(de)振(zhen)(zhen)動(dong)是(shi)由兩(liang)組激振(zhen)(zhen)系統產(chan)生的(de)(de)(de)，其振(zhen)(zhen)動(dong)形式稱為復合型(xing)(xing)振(zhen)(zhen)動(dong)。一般有雙頻(pin)復合型(xing)(xing)及(ji)雙幅(fu)復合型(xing)(xing)兩(liang)種形式。某些特殊(shu)性能的(de)(de)(de)振(zhen)(zhen)動(dong)篩(shai)分(fen)(fen)設備，使用(yong)兩(liang)臺不(bu)同(tong)型(xing)(xing)號不(bu)同(tong)轉速的(de)(de)(de)振(zhen)(zhen)動(dong)電(dian)機，分(fen)(fen)裝于篩(shai)分(fen)(fen)機械(xie)的(de)(de)(de)進(jin)料(liao)(liao)端和出料(liao)(liao)端，使進(jin)料(liao)(liao)端呈現大振(zhen)(zhen)幅(fu)低頻(pin)率的(de)(de)(de)振(zhen)(zhen)動(dong)，同(tong)時出料(liao)(liao)端呈現小振(zhen)(zhen)幅(fu)高(gao)頻(pin)率振(zhen)(zhen)動(dong)，篩(shai)分(fen)(fen)機械(xie)的(de)(de)(de)中部重(zhong)疊兩(liang)種振(zhen)(zhen)動(dong)，使篩(shai)分(fen)(fen)機械(xie)起到(dao)更有效的(de)(de)(de)篩(shai)分(fen)(fen)作用(yong)。

旋振動

振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)體(ti)(ti)(ti)的(de)(de)(de)振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)軌跡(ji)在水(shui)平(ping)面(mian)(mian)上(shang)(shang)的(de)(de)(de)投(tou)(tou)(tou)影(ying)是一(yi)圓或(huo)(huo)橢圓者，其(qi)振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)形(xing)式(shi)(shi)稱為(wei)(wei)旋(xuan)(xuan)振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)。旋(xuan)(xuan)振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)又可分為(wei)(wei)平(ping)旋(xuan)(xuan)型(xing)(xing)振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)、渦旋(xuan)(xuan)型(xing)(xing)振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)、復旋(xuan)(xuan)型(xing)(xing)振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)三種(zhong)形(xing)式(shi)(shi)。當振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)體(ti)(ti)(ti)的(de)(de)(de)振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)軌跡(ji)在垂(chui)(chui)直面(mian)(mian)上(shang)(shang)的(de)(de)(de)投(tou)(tou)(tou)影(ying)為(wei)(wei)一(yi)水(shui)平(ping)直線者，其(qi)振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)形(xing)式(shi)(shi)稱為(wei)(wei)平(ping)旋(xuan)(xuan)型(xing)(xing)振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)；當振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)體(ti)(ti)(ti)的(de)(de)(de)振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)軌跡(ji)在垂(chui)(chui)直面(mian)(mian)上(shang)(shang)的(de)(de)(de)投(tou)(tou)(tou)影(ying)為(wei)(wei)一(yi)斜直線者，其(qi)振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)形(xing)式(shi)(shi)稱為(wei)(wei)渦旋(xuan)(xuan)型(xing)(xing)振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)；當振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)體(ti)(ti)(ti)的(de)(de)(de)振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)軌跡(ji)在垂(chui)(chui)直面(mian)(mian)上(shang)(shang)的(de)(de)(de)投(tou)(tou)(tou)影(ying)為(wei)(wei)一(yi)圓或(huo)(huo)橢圓者，其(qi)振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)形(xing)式(shi)(shi)稱為(wei)(wei)復旋(xuan)(xuan)型(xing)(xing)振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)。通常由(you)立(li)式(shi)(shi)振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)電(dian)機(ji)激振(zhen)(zhen)(zhen)的(de)(de)(de)振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)械產生(sheng)旋(xuan)(xuan)振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)，其(qi)振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)形(xing)式(shi)(shi)則看立(li)式(shi)(shi)振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)電(dian)機(ji)兩(liang)(liang)端激振(zhen)(zhen)(zhen)塊的(de)(de)(de)夾角而定。也可將兩(liang)(liang)臺(tai)臥式(shi)(shi)振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)電(dian)機(ji)安裝在振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)設備兩(liang)(liang)側(ce)，使(shi)其(qi)轉軸呈(cheng)一(yi)設定的(de)(de)(de)角度，則振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)械也將產生(sheng)旋(xuan)(xuan)振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)。

產品分類：

1、YZU系列交流三(san)相異步(bu)振動電機

2、YZUL系(xi)列立(li)式交流三相(xiang)異步振動電機

3、MVE系列交流單(dan)/三相振動電機

4、MVE系列微型(xing)交流(liu)單/三相振動電(dian)機

5、MVE系列(lie)直流振動(dong)電機

6、YLJ系列(lie)交流(liu)三(san)相力矩(ju)電(dian)機

7、YCT系列電(dian)磁調速電(dian)機

圓或橢圓振動

振(zhen)動(dong)體的振(zhen)動(dong)軌跡在(zai)水平(ping)面上(shang)(shang)的投影是一條直線，而(er)在(zai)垂直面上(shang)(shang)的投影為一圓(yuan)或(huo)(huo)橢(tuo)圓(yuan)者，其(qi)振(zhen)動(dong)形(xing)式稱(cheng)為 圓(yuan)或(huo)(huo)橢(tuo)圓(yuan)型振(zhen)動(dong)。通常將(jiang)一臺振(zhen)動(dong)電機安(an)裝在(zai)振(zhen)動(dong)機械機體上(shang)(shang)，既可產生這(zhe)種運(yun)動(dong)。圓(yuan)形(xing)或(huo)(huo)橢(tuo)圓(yuan)形(xing)振(zhen)動(dong)發生在(zai)與(yu)振(zhen)動(dong)電機轉(zhuan)軸相垂直的平(ping)面上(shang)(shang)，其(qi)形(xing)式則(ze)看振(zhen)動(dong)電機與(yu)整(zheng)機重(zhong)心的相對位置而(er)定(ding)。

直線振動

振(zhen)(zhen)(zhen)動(dong)體(ti)的振(zhen)(zhen)(zhen)動(dong)軌跡(ji)在水平面及垂直(zhi)面上的投影都是直(zhi)線者(zhe)，其振(zhen)(zhen)(zhen)動(dong)形(xing)式稱為(wei)直(zhi)線型振(zhen)(zhen)(zhen)動(dong)。將(jiang)兩臺(tai)相(xiang)同型號的振(zhen)(zhen)(zhen)動(dong)電(dian)機(ji)安裝在振(zhen)(zhen)(zhen)動(dong)機(ji)械機(ji)體(ti)上，使兩個轉軸處于(yu)互相(xiang)平行的位置，運行時電(dian)機(ji)轉向相(xiang)反，則兩臺(tai)電(dian)機(ji)運轉必然同步，機(ji)體(ti)產生直(zhi)線形(xing)振(zhen)(zhen)(zhen)動(dong)。

振動電機工作原理

振(zhen)(zhen)動(dong)(dong)(dong)電(dian)(dian)機(ji)(ji)(ji)(ji)(ji)是動(dong)(dong)(dong)力(li)源(yuan)(yuan)與(yu)振(zhen)(zhen)動(dong)(dong)(dong)源(yuan)(yuan)結(jie)合為一體(ti)的(de)激(ji)(ji)振(zhen)(zhen)源(yuan)(yuan)，振(zhen)(zhen)動(dong)(dong)(dong)電(dian)(dian)機(ji)(ji)(ji)(ji)(ji)是在轉子(zi)軸兩端(duan)各安裝一組可(ke)調偏心塊，利用(yong)軸及偏心塊高(gao)速旋轉產生的(de)離心力(li)得到激(ji)(ji)振(zhen)(zhen)力(li)。振(zhen)(zhen)動(dong)(dong)(dong)電(dian)(dian)機(ji)(ji)(ji)(ji)(ji)的(de)激(ji)(ji)振(zhen)(zhen)力(li)利用(yong)率(lv)高(gao)、能耗小(xiao)、噪音低、壽命(ming)長。振(zhen)(zhen)動(dong)(dong)(dong)電(dian)(dian)機(ji)(ji)(ji)(ji)(ji)的(de)激(ji)(ji)振(zhen)(zhen)力(li)可(ke)以無級調節，使用(yong)方便，XJD、JZO、YZU、VB，XVM，YZO、 YZS、YZD、TZD ，TZDC 等型號(hao)的(de)振(zhen)(zhen)動(dong)(dong)(dong)電(dian)(dian)機(ji)(ji)(ji)(ji)(ji)為通用(yong)型振(zhen)(zhen)動(dong)(dong)(dong)電(dian)(dian)機(ji)(ji)(ji)(ji)(ji)。可(ke)以應用(yong)于一般振(zhen)(zhen)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)械，如：振(zhen)(zhen)動(dong)(dong)(dong)破碎機(ji)(ji)(ji)(ji)(ji)、振(zhen)(zhen)動(dong)(dong)(dong)篩(shai)分機(ji)(ji)(ji)(ji)(ji)、振(zhen)(zhen)動(dong)(dong)(dong)打包機(ji)(ji)(ji)(ji)(ji)、振(zhen)(zhen)動(dong)(dong)(dong)落砂(sha)機(ji)(ji)(ji)(ji)(ji)、振(zhen)(zhen)動(dong)(dong)(dong)造型機(ji)(ji)(ji)(ji)(ji)、振(zhen)(zhen)動(dong)(dong)(dong)打樁機(ji)(ji)(ji)(ji)(ji)、振(zhen)(zhen)動(dong)(dong)(dong)提(ti)升機(ji)(ji)(ji)(ji)(ji)、振(zhen)(zhen)動(dong)(dong)(dong)充填機(ji)(ji)(ji)(ji)(ji)、料倉的(de)振(zhen)(zhen)動(dong)(dong)(dong)破拱防閉塞裝置等等。廣泛的(de)應用(yong)在水(shui)電(dian)(dian)建設、火力(li)發電(dian)(dian)、建筑、建材、化(hua)工(gong)、采(cai)礦(kuang)、煤炭(tan)、冶金、輕工(gong)等工(gong)業(ye)部門。

振動電機如何安裝（安裝調試）

防爆型振動(dong)電動(dong)機應牢(lao)固低安(an)裝在振動(dong)機械上，不得松動(dong)。在第一(yi)次使用(yong)后，應對地(di)腳螺栓重(zhong)新加固。

防(fang)爆型(xing)振動電(dian)機用(yong)橡膠套(tao)軟電(dian)纜（橡套(tao)外徑15mm）與電(dian)源相接(jie)(jie)，接(jie)(jie)線步驟如下：

a、將接線盒外部擦干凈，剝掉電纜線部分的絕緣。

b、卸下出線壓蓋(gai)、電纜導套、密封圈、接(jie)線盒蓋(gai)。

c、將出線(xian)壓蓋(gai)，電纜(lan)(lan)(lan)導套(tao)，密封圈(quan)套(tao)上電纜(lan)(lan)(lan)，然后(hou)把電纜(lan)(lan)(lan)的電力(li)芯(xin)線(xian)和接(jie)地芯(xin)線(xian)分(fen)別接(jie)到(dao)接(jie)線(xian)柱和接(jie)地螺釘上，并(bing)注意(yi)導線(xian)裸露部分(fen)不要露在弓(gong)型墊圈(quan)外。

d、裝好密封圈、電纜導套(tao)、出線壓板(ban)和(he)接(jie)線盒(he)蓋。

e、拆裝中應(ying)注意保護防(fang)(fang)爆(bao)面不要損(sun)傷，裝配(pei)時應(ying)涂204-1防(fang)(fang)銹油(you)，裝好后防(fang)(fang)爆(bao)面須嚴密貼(tie)合。

電纜在(zai)接(jie)線盒與不振動的(de)固定卡之間須(xu)有(you)一個自然懸垂，即接(jie)線盒至(zhi)不振動的(de)固定卡之間的(de)電纜長度應比其線距(ju)離長400-700mm。