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450/750V控制電纜KVV按GB9330《塑料絕緣控制電纜》、IEC60227《額定電壓450/750V及以下聚氯乙烯絕緣電纜》以及IEC60502《額定電壓1-30KV擠包絕緣電力電纜及附件》等標(biāo)準(zhǔn)制造。
線纜結(jié)構(gòu)：導(dǎo)體：采用多股細(xì)絞和精絞成束細(xì)一級(jí)無氧銅絲作導(dǎo)體，符合DINVDE0295等級(jí)6絕緣：優(yōu)質(zhì)聚氯乙烯混合體顏色：彩色線芯或編碼線芯≥3芯加黃綠芯線護(hù)套：優(yōu)質(zhì)聚氯乙烯混合體顏色：黑色、灰色、橙色電氣特性：額定電壓：U0/U＜0.5mm2300/300V≥O.5mm2300/500V測(cè)試電壓:U。
KYJVP銅芯聚氯乙烯絕緣聚氯乙烯護(hù)套控銅線編織屏蔽控制電纜。KYJVRP銅芯聚氯乙烯絕緣聚氯乙烯護(hù)套控銅線編織屏蔽控制軟電纜。KYJVP2銅芯聚氯乙烯絕緣聚氯乙烯護(hù)套銅帶屏蔽控制電纜。KYJVRP2銅芯聚氯乙烯絕緣聚氯乙烯護(hù)套銅帶屏蔽控制軟電纜。
In order to improve the of the cable, we choose highelectrical insulation materials production, such as special cable1.8/3 kv frequency conversion motor, with 10 kv crosslinkedinsulating materials, special cable adopts frequency conversionmotor of 6/10 kv, 35 kv crosslinking insulation materials,conductive shielding, insulation shield and insulation adopts theimported materials. In the process of production, we put specialemphasis on the purification of raw materials, shielding closelywith extruded insulation materials, control the uniformity of theinsulation eccentricity and insulation outside diameter, which canreduce the interface effect, improve the electrical cableproperties.
五：代號(hào)名稱和含義表2項(xiàng)目代號(hào)說明阻燃特性ZR分A、B、C級(jí)阻燃系列代號(hào)K控制電纜絕緣材料F聚全氟乙丙烯(F46)Zui高工作溫度200℃可溶性聚四氟乙烯(PFA)Zui高為260℃(型號(hào)前加ZR192)護(hù)套材料F聚全氟乙丙烯(F46)Zui高工作溫度200℃可溶性聚四氟乙烯(PFA。
例發(fā)動(dòng)機(jī)組控制系統(tǒng)設(shè)計(jì)——使用多重背景設(shè)某發(fā)動(dòng)機(jī)組由1臺(tái)汽油發(fā)動(dòng)機(jī)和1臺(tái)柴油發(fā)動(dòng)機(jī)組成，現(xiàn)要求用plc控制發(fā)動(dòng)機(jī)組，使各臺(tái)發(fā)動(dòng)機(jī)的轉(zhuǎn)速穩(wěn)定在設(shè)定的速度上，并控制散熱風(fēng)扇的啟動(dòng)和延時(shí)關(guān)閉。每臺(tái)發(fā)動(dòng)機(jī)均設(shè)置一個(gè)啟動(dòng)按鈕和一個(gè)停止按鈕。項(xiàng)目的編程步驟如下：創(chuàng)建S7項(xiàng)目。使用菜單“文件”à“新建工程”向?qū)?chuàng)建發(fā)動(dòng)機(jī)組控制系統(tǒng)的S7項(xiàng)目，并命名為“多重背景”。CPU選擇CPU315-2DP，項(xiàng)目包含組織塊OB1。
1. Rated voltage U0/U: 0.6/1kv. 2. The long-term allowabletemperature of the cable conductor is +90 degrees, and theshort-circuit temperature is +250 degrees. 3. Installation andlaying temperature: greater than or equal to 0 degrees, and thefixed dressing temperature is lower than -10 degrees. 4. Allowablebending radius of cable: greater than or equal to 15D(d-cable outerdiameter).
RVV電纜檢驗(yàn)要求RVV是指多股銅芯軟線,外觀看線上的標(biāo)識(shí),皮層和線芯的比擬厚度.皮層一般是聚氯材料.銅芯是19股絞合.規(guī)格一般有1,1.5,2.5平方毫米.在看線的長(zhǎng)度(一圈為100米),國(guó)標(biāo)線95-100米,非標(biāo)線90米左右。
DJYP2V(R)P2聚乙烯絕緣銅帶繞包分屏總屏聚氯乙烯護(hù)套計(jì)算機(jī)用屏蔽(軟)電纜。DJYV(R)P3聚乙烯絕緣鋁塑復(fù)合帶繞包總屏聚氯乙烯護(hù)套計(jì)算機(jī)用屏蔽(軟)電纜。DJYP3V(R)聚乙烯絕緣鋁塑復(fù)合帶繞包分屏聚氯乙烯護(hù)套計(jì)算機(jī)用屏蔽(軟)電纜。
KVV22KVV23聚氯乙烯絕緣聚氯乙烯聚乙烯護(hù)套鋼帶鎧裝控制電纜敷設(shè)在室內(nèi)、電纜溝、管道內(nèi)及地下，電纜能承受機(jī)械外力作用。KVVPKVVP2KVVRP聚氯乙烯絕緣聚氯乙烯護(hù)套銅帶銅絲編織屏蔽控制電纜敷設(shè)在室內(nèi)、電纜溝、管道內(nèi)及地下，電纜具有防干擾能力。
|MHYV mine cable |MHYVR mine cable |MHYVP mine shielded cable|MHY32 mine cable |MHYVRP mine shielded cable | mine monitoringcable? Mining cables, suitable for transmission in mines, can beused or fixed. ? Fire retardant cable for mine (now referred to asfire retardant communication cable for coal mine)? 1. Productadoption: mt818-1999? MHYVR (PUYVR)? (1 x 2? 1 x 4? 2 x 2? 3 x 2? 4x 2? 5 x 2? 6 x 2? 8 x 2? 10 x 2?) Polyurethane polyurethanesheathed mine cable for general transmission in mine. ? MHY32(puyv39-1)? (1 x 2? 1 x 4? 2 x 2? 3 x 2? 4 x 2? 5 x 2? 6 x 2? 8 x2? 10 * 2) 1/1.0, 1/1.38 poly-insulated steel wire armoredpoly-chloride sheath coal mine cables are used for transmission inroadway or shaft or inclined shaft. MHYV (PUYV) (1 times 2? 1 x 4?2 x 2? 3 x 2? 4 x 2? 5 x 2? 6 x 2? 8 x 2? 10 * 2) 1/1.0, 1/1.38polyurethane polyurethane sheath coal mine cables are used forgeneral transmission in mines and are suitable for fixedinstallation. MHYVRP? 7/0.30, 7/0.37, 7/0.43, 7/0.52 (1 ~ 10 pairs,1 x 4) polyinsulated copper wire braided shielding PVC sheathedcoal mine cables, used for transmission in places with largeelectric fields. ? MHYVP? (1 x 2? 1 x 4? 2 x 2? 3 x 2? 4 x 2? 5 x2? 6 x 2? 8 x 2? 10 x 2?) * 7/0.30, 7/0.37, 7/0.43, 7/0.52poly-insulated PVC sheathed coal mine cables, used for transmissionin places with large electric fields and for fixed laying. ?
在四線組外扎一標(biāo)識(shí)扎帶，扎帶顏色：紅、綠、白。填充材料填充式電纜應(yīng)在纜芯的間隙及纜芯與包帶的間隙均勻而連續(xù)地填滿符合規(guī)定的填充復(fù)合物。纜芯包帶纜芯包帶用具有足夠的隔熱性能和機(jī)械強(qiáng)度的絕緣帶重疊繞包。以防導(dǎo)體絕緣在加屏幕和擠出擠套過程中粘接、變形和損傷。
交流接觸器是一種應(yīng)用于交流電源環(huán)境中的通斷開關(guān)，在目前各種控制線路中應(yīng)用Zui為廣泛。具有欠電壓保護(hù)、零電壓釋放保護(hù)、工作可靠、性能穩(wěn)定、操作頻率高、維護(hù)方便等特點(diǎn)。在實(shí)際應(yīng)用中，交流接觸器主要作為交流供電電路中的通斷開關(guān)，實(shí)現(xiàn)遠(yuǎn)距離接通與分?jǐn)嚯娐饭δ堋Ｔ趯?shí)際控制線路中，接觸器一般利用主觸頭接通或分?jǐn)嘀麟娐芳捌溥B接負(fù)載。用輔助觸頭執(zhí)行控制指令。在水泵的起、?？刂凭€路中，控制線路中的交流接觸器KM主要是由線圈、一組動(dòng)合主觸頭KM-兩組動(dòng)合輔助觸頭和一組動(dòng)斷輔助觸頭構(gòu)成的。
礦用電纜防火性能分析防火機(jī)理分析阻燃機(jī)理在燃燒反應(yīng)的熱作用下，位于凝聚相的阻燃劑分解吸熱，使凝聚相內(nèi)溫度上升減慢，延緩了材料的熱分解速度；阻燃劑受熱分解后，釋放出連鎖反應(yīng)自由基阻斷劑，使火焰、連鎖反應(yīng)的分支中斷，減緩了氣相反應(yīng)速度；催化凝聚相熱分解固相產(chǎn)物，焦化層或泡沫層的形成加強(qiáng)了這些層狀硬殼阻礙。
敷設(shè)時(shí)電纜的溫度應(yīng)不低于0℃，敷設(shè)時(shí)彎曲半徑應(yīng)不小于電纜外徑的10倍。有鎧裝層或銅帶屏蔽結(jié)構(gòu)的電纜，應(yīng)不小于電纜外徑的12倍。適用于交流額定電壓U0/U=0.6/1KV供電回路中。電纜導(dǎo)體的Zui高工作溫度為70℃短路時(shí)：電纜導(dǎo)體Zui高溫度不超過160℃（持續(xù)時(shí)間不大于5S）電纜允許彎曲半徑不小于15D注：D為電纜外徑mm。
Precautions for installation of power cables: keep 2m distance whenthe cable is installed in parallel with the thermal pipe, and 0.5mshould be maintained when crossing. The cable shall be installed ata distance of 0.5m in parallel or across other pipelines. When thecable is directly buried and installed, the buried depth of 1-35kvcable is not less than 0.7m. When 10KV and below cables areinstalled in parallel, the net distance between them shall not beless than 0.1m and 10-35kv shall not be less than 0.25m. Thedistance of cross installation is not less than 0.5m. Cable layingtemperature is not lower than 0 ℃, bending radius: multi-core cableor 15 (D + D), a single cable 20 or more (D + D), (D for cablediameter, D) for the conductor diameter. 6 kv and above cablejoint: (1) installing a cable terminal head, must be strippedsemiconductor electric shielding layer, operation shall not damagethe insulation, should avoid mark uneven situation, when necessaryuse sand paper to grind; The shield end should be flat and thegraphite layer (carbon particles) should be cleaned. (2) plasticcable end copper tape screened and armor must be good grounding,the short circuit also follow this principle, avoid unbalancedthree-phase run ShiGang armoured end produce inductiveelectromotive force, and even "lighter" and accidents such asburning sheath. It is required to use my tinplate to braid copperwire for grounding lead. When connecting with the cable copperbelt, it should be welded with chromium-iron tin. The shield ofthree-phase copper tape should be connected with ground wirerespectively. Note that the shielded ground wire and steel armorground wire should be separately drawn out and insulated from eachother. The position of the welded ground wire should be as low aspossible. Basic re for cable terminals and intermediatejoints: a. good conductor connection; B. The insulation isreliable, and it is recommended to use irradiated cross-linkedheat-shrinkable silicone rubber insulation materials; C. goodsealing; D. sufficient mechanical strength to meet variousoperating conditions. The end of the cable must be used to preventerosion of water and other corrosive materials, so as to preventbreakdown due to the aging of the insulation layer caused by watertrees. Crane or forklift should be used for the loading andunloading of cables. It is forbidden to run flat or lay flat. Forinstallation of large cables, cable laying cart should be used toavoid external damage or abrasion caused by manual dragging. If thecable cannot be laid in time for some reason, it should be storedin a dry place to prevent sunlight from exploding and waterentering the end of the cable. Note: the installation of wire andcable should be done by the installation personnel or full-timetechnical personnel familiar with the performance of wire andcable. If there are still unclear matters, please consult therelevant technical department or the technical department of ourfactory.
其結(jié)構(gòu)特點(diǎn)是從一個(gè)導(dǎo)體到另一個(gè)導(dǎo)體可以不通過介質(zhì)層?？諝饨^緣電纜具有很低的衰減，是超高頻下常用的結(jié)構(gòu)型式。（3）半空氣絕緣電纜這種結(jié)構(gòu)型式是介于上述兩種之間的一種絕緣型式，其絕緣也是由空氣和固體介質(zhì)組合而成，但從一個(gè)導(dǎo)體到另一個(gè)導(dǎo)體需要通過固體介質(zhì)層。