額定電壓35KV及以下銅、鋁芯交聯(lián)聚乙烯絕緣電力電纜

1、.：.； PAGE 21額定電壓6kV35kV交聯(lián)聚乙烯絕緣電力電纜Cross-linking polyethylene insulated power cables with rated voltages from 6kV up to 35kV 一、產(chǎn)品用途 Products application交聯(lián)聚乙烯絕緣電纜適用于配電網(wǎng)、工業(yè)安裝或其他需求大容量用電領(lǐng)域，用于固定敷設(shè)在交流50Hz、額定電壓6kV35kV的電力輸配電線路上，主要功能是保送電能。交聯(lián)聚乙烯絕緣阻燃電纜具有阻止火勢在電纜電路蔓延的功能，可防止火災(zāi)事故擴展以減少損失，適用于地鐵、遂道、高層建筑等電纜敷設(shè)密集程度較高的場所。

2、交聯(lián)聚乙烯絕緣無鹵低煙阻燃電纜具有優(yōu)良的阻燃性、耐腐蝕性及低煙濃度，是一種環(huán)保型產(chǎn)品，適用于地鐵、商場、學(xué)校等人員密集型場所。上述產(chǎn)品為通常條件下運用的產(chǎn)品，不適用一些特殊條件的場所，如水下、船用、核電站等。XLPE polyethylene insulated power cables, This product is applicable to being fixedly laid on the transmission and distribution line of alternative current rating 50Hz and rated voltage up to 6/35

3、 kV with the use for power transmission, which is applied to the range of distribution network, industrial equipments, high electricity consumption places etc.XLPE polyethylene insulated flame-retardant power cables, The product has good performance on preventing fire burning on the circuit, which c

4、an avoid fire accidents and losses. The products can be used in subway, tunnels and high-rise buildings etc.XLPE polyethylene insulated low-smoke zero-halogen flame-retardant power cables, The environmental product has good performance on flame-retardant, corrosion resistance and low-smoke, which is

5、 suitable to be laid in crowded places, such as subway, shopping mall or schools etc.This product is the normal used cable, not suitable for some special places, such asunder water, ship, nuclear station, etc.二、產(chǎn)品主要技術(shù)特點 Technique features 交聯(lián)聚乙烯絕緣電纜采用過氧化物交聯(lián)的方法，使聚乙烯分子由線型分子構(gòu)造變?yōu)槿S網(wǎng)狀構(gòu)造，由熱塑性資料變成熱固性資料，任務(wù)溫度

6、從70提高到90交聯(lián)聚乙烯絕緣電纜具有優(yōu)越的電氣性能、耐熱性能、耐化學(xué)性能、耐環(huán)境應(yīng)力開裂性能、抗老化性能，具有長期的運用壽命。無鹵低煙阻燃交聯(lián)聚乙烯絕緣電纜具有優(yōu)良的阻燃特性，護套資料不含鹵素，可以保證在熄滅時只釋放少量的毒性和腐蝕性氣體，具有產(chǎn)生煙霧較少等特點，是一種環(huán)保型的新產(chǎn)品，同時具有優(yōu)越的電氣性能、耐熱性能、耐化學(xué)性能、耐環(huán)境應(yīng)力開裂性能、抗老化性能，具有長期的運用壽命。本產(chǎn)品構(gòu)造簡單，制造周期短，易于安裝和維護，敷設(shè)時不受落差限制。XLPE polyethylene insulated power cables, this product is manufactured by p

7、arasitical cross-linking procedure, the straight-chain polyethylene will be changed as network structure by use this method, which transformed thermoplastic material into thermosetting material. The working temperature is up to 90, which can raiseXLPE polyethylene insulated power cables, the product

8、 has good performance on electrical characteristic, heat resistance, chemical resistance, environmental stress cracking resistance and aging resistance, all which make the cable has a long useful life.XLPE polyethylene insulated low-smoke zero-halogen flame-retardant low-smoke zero-halogen flame-ret

9、ardant power cables; the product is a new environmental protected cable with good flame-retardant performance, which just releases few poisonous and corrosive gases. The product has good performance on electrical characteristic, heat resistance, chemical resistance, environmental stress cracking res

10、istance and aging resistance, all which makes the cable has a long useful life.The product characteristic is simple structure, short production period, easy installation and maintained, especially there is no limit of head drop during the cable laying.三、產(chǎn)品執(zhí)行規(guī)范 StandardsIEC 60502-2:1997 額定電壓1 kV(Um=1

11、.2 kV)到30 kV(Um=36 kV)擠包絕緣電力電纜及附件第2部分：額定電壓 6 kV(Um=7.2 kV)到30 kV(Um=36 kV)電纜Power cables with extruded insulation and their for rated voltages from 1kV(Um=1.2kV) up to 30 kV(Um=36 kV) Part2:Cables for ratedvoltages of 6kV(Um=7.2kV)up to 30 kVUm=36 kVGB/T 12706.2-2002 額定電壓1 kV(Um=1.2 kV)到35 kV(Um=40.

12、5 kV)擠包絕緣電力電纜及附件第2部分：額定電壓 6 kV(Um=7.2 kV)到30 kV(Um=36 kV)電纜Power cables with extruded insulation and their for rated voltages from 1kV(Um=1.2kV) up to 35kV(Um=40.5kV) Part2:Cables for ratedvoltages of 6kV(Um=7.2kV)up to 30 kVUm=36 kVGB/T 12706.3-2002 額定電壓1 kV(Um=1.2 kV)到35 kV(Um=40.5 kV)擠包絕緣電力電纜及附件第

13、3部分：額定電壓 35 kV(Um=40.5 kV)電纜Power cables with extruded insulation and their for rated voltages from 1kV(Um=1.2kV) up to 35kV(Um=40.5kV) Part3:Cables for ratedvoltages of 35kV(Um=40.5kV)GB/T 19666-2005 阻燃和耐火電線電纜通那么General Rules of flame-retarding and fireproof cablesGB/T 3956-1997 電纜的導(dǎo)體 Conductor of

14、Cables四、運用特性 Operating characteristics額定電壓 Rated Voltage電纜額定電壓U0/U(Um)表示方法如下：Rated Voltage of cable U0/U(Um)，as follow：U0/U(Um)3.6/6(7.2)6/6(7.2)6/10(12)8.7/10(12)8.7/15(17.5)12/20(24)18/30(36)21/35(40.5)26/35(40.5)kV。其中：U0：電纜設(shè)計用的導(dǎo)體對地或金屬屏蔽之間的額定工頻電壓；U：電纜設(shè)計用的導(dǎo)體間的額定工頻電壓；Um：設(shè)備可接受的“最高系統(tǒng)電壓的最大值。電纜的額定電壓應(yīng)適宜電

15、纜所在系統(tǒng)的運轉(zhuǎn)條件。為了便于選擇電纜，將系統(tǒng)劃分為以下三類：A類：任一相導(dǎo)體與地或接地導(dǎo)體接觸時，能在1min內(nèi)與系統(tǒng)隔離。B類：可在單相接地缺點時作短時運轉(zhuǎn)，但任何情況下不宜超越8h，每年接地缺點總繼續(xù)時間不宜超越125h。C類：包括不屬于A類和B類的系統(tǒng)。注：在系統(tǒng)接地缺點不能立刻自動解除時，缺點期間加在電纜絕緣上過高的電場強度，會在一定程度上縮短電纜壽命。如系統(tǒng)預(yù)期會經(jīng)常地運轉(zhuǎn)在耐久的接地缺點形狀下，該系統(tǒng)應(yīng)劃為C類。Notes：U0：Rated A.C. Voltage between conductor and ground/metal screen;U：Rated A.C. Vo

16、ltage between conductorsUm：The maximum system voltage which the equipments can be beared。The rated voltage of cable shall be applicable to system operation condition where the cable lain in. According to cable selecting, the system will be described as 3 types as follow: System category A This categ

17、ory comprises those systems in which any phase conductor that comes in contact with earth or an earth conductor. is disconnected from the system within 1 min.System category B This category comprises those system which, under fault conditions ,are operated ,are operated for shortage with one phase e

18、arthed. This period should not exceed 1 h. .Foray longer period, not exceeding 8h on any occasion, can be tolerated. The total duration of earth faults in any year should not exceed 125h.System category C This category comprises all systems which do not fall into A and B。When the system earth fault

19、cant be removed automatically, the life of cable will be shortened in some degree because of the over-high electric stress bewared by cable insulation.用于三項系統(tǒng)的電纜，U0的引薦值見表1。The recommended figure of U0 see the table 1, which are suitable for the three systems.:表1 額定電壓U0引薦值Table1 the recommended figure

20、 of U0 系統(tǒng)最高電壓Um/ kV Maximum system voltage/ kV額定電壓/ kVRated Voltage/ kVA類、B類System categories A and BC類C 類系統(tǒng) Systems categories C7.23.66.012.06.08.717.58.712.024.012.018.036.018.040.52126導(dǎo)體額定任務(wù)溫度電纜導(dǎo)體的最高額定任務(wù)溫度為90短路時最長繼續(xù)時間不超越5s電纜導(dǎo)體的最高溫度不超越250The rated temperature of conductorThe maximum assigned tempe

21、rature of the cable conductor is 90During having a short circuit, lasting less than 5 seconds, the maximum temperature of the cable conductor shall not be above 250敷設(shè)環(huán)境溫度 電纜敷設(shè)時的環(huán)境溫度應(yīng)不低于0Ambient temperature for layingThe ambient temperature for laying shall be above 0安裝彎曲半徑The bend radius安裝時電纜最小彎曲半徑見

22、表2。The minimum bend radius of the cable see the table 2表2 電纜安裝時最小彎曲半徑 Table2 The minimum bend radius of the cable工程Item單芯電纜Single -core 三芯電纜Three -core 無鎧裝Unarmored有鎧裝Armored無鎧裝Unarmored有鎧裝Armored安裝時的電纜最小彎曲半徑Minimum bend radius of the cable in course of installation.20D15D15D12D接近銜接盒和終端的電纜的最小彎曲半徑The

23、 minimum bend radius of the cable close to the junction box and terminal15D12D12D10D注：D為電纜外徑mm。Note: D is outer diameter of the cable敷設(shè)方式 Laying電纜沒有敷設(shè)落差限制。電纜允許敷設(shè)在室內(nèi)、室外、空氣中和土壤中，允許部分有積水。電纜敷設(shè)方式可以是隧道、管道、電纜溝、橋架、排管，鎧裝電纜允許直埋地下，鋼絲鎧裝電纜允許垂直敷設(shè)。單芯電纜不允許敷設(shè)在磁性金屬管內(nèi)。電纜敷設(shè)環(huán)境應(yīng)有良好的散熱條件。There is no limit of head drop dur

24、ing the cable laying.The cable may be laid in indoor, outdoor, air and soil. The cable may be immersed in water locally. The cable may be laid in tunnel, pipe, trench, conduit and on cable bridge. The armored cable can be laid underground, and the wire- armored cable can be laid vertically.The singl

25、e core cable mustnt be laid in the magnetic metal pipes.The environment of cable laying shall be in good heat dissipation condition.電纜敷設(shè)時導(dǎo)體最大允許牽引力和電纜最大允許側(cè)壓力The maximum allowed haul-off force and lateral pressure of cable導(dǎo)體最大允許牽引力計算方法：The calculating method of the maximum allowed haul-off force :銅導(dǎo)體(

26、Cu)：F=70SN/mm2。鋁導(dǎo)體(Al)：F=40SN/mm2。側(cè)壓力計算方法：The calculating method of the maximum allowed lateral pressure：P=FRN/m，最大允許側(cè)壓力不超越3000N/m。P=FRN/m，The maximum allowed lateral pressure3000N/m式中：F牽引力，N； FLateral pressure，N；S導(dǎo)體截面，mm2； SConductor section，mm2；P側(cè)壓力，N/m； Plateral pressure，N/m；R電纜彎曲半徑，m。 RBend radi

27、us，m。電纜運輸和保管要求 ： 電纜盤不允許平放。運輸中嚴(yán)禁從高處扔下裝有電纜的電纜盤，嚴(yán)禁機械損傷電纜。電纜假設(shè)需求分段運用，電纜分段后必需用防水封帽將電纜頭密封，防止進水。The requirements on transportation and storage:The cable reels shall not be delivered and stored in flat state.It is strictly forbidden to push the cable reel from the high level in order to prevent the cable fr

28、om damagesIf the cable should be used sectionally, the head of the cable must be sealed in order to prevent water intake.五、產(chǎn)品表示方法 Expressed method of product1、代號Code系列代號Series code 阻燃系列 Flame-retardant series 阻燃A類 Flame-retardant class AZA 阻燃B類Flame-retardant class BZB 阻燃C類Flame-retardant class CZC

29、阻燃D類Flame-retardant class DZD無鹵低煙阻燃系列Low-smoke zero-halogen flame-retardant series 無鹵低煙阻燃A類Llow-smoke zero-halogen flame-retardant class AWDZA 無鹵低煙阻燃B類Low-smoke zero-halogen flame-retardant class BWDZB 無鹵低煙阻燃C類Low-smoke zero-halogen flame-retardant class CWDZC 無鹵低煙阻燃D類Low-smoke zero-halogen flame-re

30、tardant class DWDZD導(dǎo)體代號Conductor code銅導(dǎo)體省略Copper conductor ( omitted )T鋁導(dǎo)體Aluminum conductorL絕緣代號Insulation code交聯(lián)聚乙烯絕緣 Cross-linking polyethylene(XLPE) insulatedYJ 護套代號1Sheath code聚氯乙烯護套 Polyvinyl chloride and sheathV聚乙烯護套 Polyethylene sheathY 鎧裝代號Amour code雙鋼帶鎧裝steel tape armoured 2細(xì)圓鋼絲鎧裝thin stee

31、l-wire armoured 3粗圓鋼絲鎧裝thick steel-wire armoured 4雙非磁性金屬帶2鎧裝 Double non-magnetic metal tape armoured6非磁性金屬絲3鎧裝Non-magnetic metal-wire armoured7外護套代號Outer sheath code聚氯乙烯外護套 polyvinyl chloride outer sheath 2聚乙烯外護套 polyethylene outer sheath 3注：包括擠包的內(nèi)襯層和隔離套等。非磁性金屬帶包括不銹鋼帶、鋁帶等，假設(shè)訂貨時未注明，采用何種資料由制造方確定。非磁性金屬

32、絲包括不銹鋼絲、銅絲、鋁絲等，假設(shè)訂貨時未注明，采用何種資料由制造方確定。Note: 1) Including the extruding inner covering and separating tape. 2) Non-magnetic metal tapes are including stainless steel tape, aluminium tape, etc. The materials will determined by the manufacturer, if the buyer not mentioned. 3) Non-magnetic metal wires ar

33、e including stainless steel tape, aluminium tape, etc. The materials will determined by the manufacturer, if the buyer not mentioned.2、產(chǎn)品表示方法Expressed method of product產(chǎn)品用型號型號中有數(shù)字代號的電纜外護層，數(shù)字前的文字代號表示內(nèi)護套、規(guī)格額定電壓、芯數(shù)、標(biāo)稱截面和規(guī)范編號表示。The product is described as type (figure code of cable outer sheath, the wor

34、d code in front of the figure means inner sheath), specification(rated voltage, cores numbers, sectional area ) and standards code. 3、產(chǎn)品型號組成The consistent of specifications產(chǎn)品型號的組成和陳列順序如下：The consistent of specification, as follow:注：非阻燃型電力電纜型號組成中絕緣通常作為系列代號。Note：The insulation in the cable specificati

35、ons are the series code.4、產(chǎn)品表示方法 Expressed method of product 例如：1銅芯交聯(lián)聚乙烯絕緣聚乙烯內(nèi)護套鋼帶鎧裝聚氯乙烯護套電力電纜，額定電壓8.7/15kV，三芯，標(biāo)稱截面240mm2YJY22-8.7/15 3*240 GB/T 12706.2-20022銅芯交聯(lián)聚乙烯絕緣聚乙烯內(nèi)護套鋼帶鎧裝聚氯乙烯護套阻燃C類電力電纜，額定電壓8.7/15kV，三芯，標(biāo)稱截面150mm2ZC-YJY22-8.7/15 3*150 GB/T19666-2005/ GB/T 12706.2-20023銅芯交聯(lián)聚乙烯絕緣聚乙烯內(nèi)護套鋼帶鎧裝聚烯烴護套無鹵

36、低煙阻燃C類電力電纜，額定電壓8.7/15kV，三芯，標(biāo)稱截面185mm2WDZC-YJY23-8.7/15 3*185 GB/T19666-2005/ GB/T 12706.2-20024鋁芯交聯(lián)聚乙烯絕緣聚乙烯內(nèi)護套鋼帶鎧裝聚烯烴護套無鹵低煙阻燃A類電力電纜，額定電壓26/35kV，三芯，標(biāo)稱截面185mm2表示為： WDZA-YJLY23-26/35 3*185 GB/T19666-2005/ GB/T 12706.2-2002 Example:1Copper conductor ,XLPE insulated, (PE inner sheath) steel tape armoured

37、 and PVC sheathed power cables, rated Voltages 8.7/15kV, three cores, Nominal cross area 240mm2, see the following:YJY22-8.7/15 3*240 GB/T 12706.2-20022Copper conductor ,XLPE insulated, (PE inner sheath) steel tape armoured and PVC sheathed class C flame-retardant power cables, rated Voltages 8.7/15

38、kV, three cores, Nominal cross area 150mm2, see the following:ZC-YJY22-8.7/15 3*150 GB/T19666-2005/ GB/T 12706.2-20023Copper core XLPE insulated (PE inner sheath)steel tape amoured polyolefin sheath low-smoke zero-halogen class c flame-retardant power cables with rated voltage 8.7/15kV, three cores,

39、 nominal sectional area 185mm2, see the followingWDZC-YJY23-8.7/15 3*185 GB/T19666-2005/ GB/T 12706.2-20024Aluminium core XLPE insulated (PE inner sheath)steel tape armoured polyolefin sheath low-smoke zero-halogen class c flame-retardant power cables with rated voltage 26/35kV, three cores, nominal

40、 sectional area 185mm2, WDZA-YJLY23-26/35 3*185 GB/T19666-2005/ GB/T 12706.2-2002六、產(chǎn)品型號、規(guī)格Types and specifications of products1、產(chǎn)品型號 Type of product產(chǎn)品常用型號見表35。 For the common product types , please see the table 35表3額定電壓6-35kV交聯(lián)聚乙烯絕緣電力電纜產(chǎn)品型號Table 3 XLPE insulated power cables with rated voltages fro

41、m 6kV up to 35kV Type of product型號 Type產(chǎn) 品 名 稱Name of product適用范圍及環(huán)境Applicability and surroundings銅 芯Copper core鋁 芯 coreYJVYJLVYJYYJLYYJV22YJY22YJLV22YJLY22。YJV23YJY23YJLV23YJLY23YJV62YJY62YJLV62YJLY62double non-magnetic metal tape armoured PVC sheath power cableYJV63YJY63YJLV63YJLY63double non-magn

42、etic metal tape armoured PE sheath power cableYJV32YJY32YJLV32YJLY32YJV33YJY33YJLV33YJLY33YJV42 YJY42YJLV42 YJLY42YJV43 YJY43YJLV43 YJLY43YJV72 YJY72YJLV72 YJLY72 non-magnetic metal wire armoured PVC sheath power cableYJV73 YJY73YJLV73 YJLY73交聯(lián)聚乙烯絕緣非磁性金屬絲鎧裝聚乙烯護套電力電纜 non-magnetic metal wire armoured

43、PE sheath power cable 表4額定電壓6-35kV交聯(lián)聚乙烯絕緣阻燃電力電纜產(chǎn)品型號Table 4 XLPE insulated flame-retardant power cables with rated voltages from 6kV up to 35kV Type of product型號 Type產(chǎn) 品 名 稱Name of product適用范圍及環(huán)境Applicability and surroundings銅 芯Copper core鋁 芯 coreZC-YJVZC-YJLVZC-YJYZC-YJLYZC-YJV22ZC-YJY22ZC-YJLV22ZC-

44、YJLY22ZC-YJV23ZC-YJY23ZC-YJLV23ZC-YJLY23ZC-YJV62ZC-YJY62ZC-YJLV62ZC-YJLY62double non-magnetic metal tape armoured PVC sheath class C flame-retardant power cableZC-YJV63ZC-YJY63ZC-YJLV63ZC-YJLY63double non-magnetic metal tape armoured PE sheath class C flame-retardant power cableZC-YJV32ZC-YJY32ZC-YJ

45、LV32ZC-YJLY32ZC-YJV33ZC-YJY33ZC-YJLV33ZC-YJLY33ZC-YJV42 ZC-YJY42ZC-YJLV42 ZC-YJLY42ZC-YJV43 ZC-YJY43ZC-YJLV43 ZC-YJLY43ZC-YJV72 ZC-YJY72ZC-YJLV72 ZC-YJLY72non-magnetic metal WIRE amoured PVC sheath class C flame-retardant power cableZC-YJV73 ZC-YJY73ZC-YJLV73 ZC-YJLY73交聯(lián)聚乙烯絕緣非磁性金屬絲鎧裝聚乙烯護套電力電纜non-mag

46、netic metal wire armoured PE sheath class C flame-retardant power cable注: 阻燃等級分為四類，包含阻燃A類、B類、C類、D類, 上表所示為“C類Note: the flame resistance performances are divided into four grades: class A, class B class C and class D，The class of the above table is C class.表5額定電壓6-35kV交聯(lián)聚乙烯絕緣阻燃電力電纜產(chǎn)品型號Table 5 XLPE ins

47、ulated flame-retardant power cables with rated voltages from 6kV up to 35kV Type of product型號 Type產(chǎn) 品 名 稱Name of product適用范圍及環(huán)境Applicability and surroundings銅 芯Copper core鋁 芯 coreWDZC-YJYWDZC-YJLYWDZC-YJV23WDZC-YJY23WDZC-YJLV23WDZC-YJLY23WDZC-YJV63WDZC-YJY63WDZC-YJLV63WDZC-YJLY63double non-magnetic

48、metal tape amoured polyolefin sheath low-smoke zero-halogen class C flame-retardant power cablesWDZC-YJV33WDZC-YJY33WDZC-YJLV33WDZC-YJLY33WDZC-YJV43 WDZC-YJY43WDZC-YJLV43 WDZC-YJLY43WDZC-YJV73 WDZC-YJY73WDZC-YJLV73 WDZC-YJLY73交聯(lián)聚乙烯絕緣非磁性金屬絲鎧裝聚烯護套電力電纜non-magnetic metal wire amoured polyolefin sheath l

49、ow-smoke zero-halogen class C flame-retardant power cables注: 無鹵低煙阻燃等級分為四類，包含阻燃A類、B類、C類、D類, 上表所示為“C類Note: the flame resistance performances are divided into four grades: class A, class B class C and class D，The class of the above table is C class.2、產(chǎn)品規(guī)格Specification of product產(chǎn)品額定電壓、導(dǎo)體標(biāo)稱截面和芯數(shù)見表6。For

50、product rated voltage, conductor sectional and the numbers of cores, please see the book 6.表6 產(chǎn)品額定電壓、導(dǎo)體標(biāo)稱截面和芯數(shù)Table 6 rated voltage, sectional area of conductor and the numbers of cores導(dǎo)體標(biāo)稱截面/mm2Nominal cross area of conductor/mm2芯數(shù)Number of cores3.6/6 kV6/6、6/10 kV8.7/10、8.7/15 kV12/20 kV18/30 kV21

51、/35 kV26/35 kV101、3161、32525251、3353535351、3505050505050501、3707070707070701、3959595959595951、31201201201201201201201、31501501501501501501501、31851851851851851851851、32402402402402402402401、33003003003003003003001、34004004004004004004001、35005005005005005005001、36306306306306306306301800800800800800

52、80080011000100010001000100010001000112001200120012001200120012001七、產(chǎn)品構(gòu)造Product structure1、導(dǎo)體 Conductor銅導(dǎo)體采用TR型軟銅線，鋁導(dǎo)體采用LY4型或LY6型硬鋁線，經(jīng)絞合、緊壓而成，其中800mm2及以下導(dǎo)體采用緊壓圓形構(gòu)造，1000mm2及以上導(dǎo)體采用分割導(dǎo)體構(gòu)造。The materials of copper conductor shall be TR soft copper wire which are stranded and extruded. The materials of the

53、 aluminum conductor shall be LY4 OR LY6 hard aluminum wire which are stranded and extruded. The structure of conductors whose sectional area is 800mm2 and below shall be tightened cylinder, and the structure of conductors whose sectional area are 1000mm2 and above shall be segmental.2、導(dǎo)體屏蔽Conductor

54、screen采用交聯(lián)型半導(dǎo)電屏蔽料，標(biāo)稱截面500mm2及以上導(dǎo)體屏蔽由繞包半導(dǎo)電帶和擠包半導(dǎo)電層復(fù)合組成。The materials shall be cross-linked semiconductor screen material. The screen materials of conductors whose sectional area are 500mm2 and above shall be compounded overlapped semi-conductive tape and extruded semi-conductive layer.3、絕緣Insulation采

55、用交聯(lián)聚乙烯XLPE擠包在導(dǎo)體屏蔽上。The insulation shall be the XLPE extruded on the conductor screen.4、絕緣屏蔽Insulation screen采用擠包型可剝離交聯(lián)半導(dǎo)電屏蔽料。The insulation screen shall be the extruding unstrippable semi-conductor screen material.導(dǎo)體屏蔽、絕緣和絕緣屏蔽采用三層共擠一次成型。The conductor screen, insulation and insulation screen are extr

56、uded simultaneously and foamed one step.5、金屬屏蔽 Metal screen采用軟銅帶或銅絲，銅帶為單層重疊繞包，銅絲為多根同心絞合，直接包覆在每根絕緣線芯之外。電壓等級為35kV電纜，標(biāo)稱截面500mm2及以上電纜應(yīng)采用銅絲屏蔽構(gòu)造，其外表運用反向繞包的銅絲或銅帶扎緊。The metal screen shall be soft copper tape whose tapping mode will be single layer overlapping and copper wire whose tapering mode will be mult

57、iple concentric stranding. The two kinds of metal screen will be coated on every insulated cores .The cable with nominal sectional area 500mm2 and above and voltage 35kV shall used copper wire as their screen structures ,whose surface will be tightened by tapered copper tape or copper wire.6、隔離套有鎧裝電

58、纜Inner sheathArmoured cables采用聚氯乙烯PVC或聚乙烯PE擠包在纜芯上。The separated sheath is the extruding PVC or PE on the cable cores.7、鎧裝 Armoured多芯電纜采用鍍鋅鋼帶或鍍鋅鋼絲，用于交流回路的單芯電纜采用非磁性金屬帶或金屬絲見第五條。金屬帶采用雙層間隙繞包，金屬絲采用多根同心絞合。注：大量現(xiàn)實證明，采用某種特殊構(gòu)造鎧裝如添加銅絲的隔磁構(gòu)造的單芯電纜用于交流回路時均出現(xiàn)電纜發(fā)熱導(dǎo)致載流量大為下降的景象，所以不引薦采用。The amour of the multiple cable s

59、hall be zinc-plated steel tape or wire, but the amour of the single cable used in AC circuit shall be non-magnetic metal-tape or metal-wire. The tapering mode of metal tape should adopt double layer open tapering, and the mode of metal wire shall multiple concentric stranding.Note: A large number of

60、 facts show that the single cable with the special structure amour in the AC circuit exists the heating phenomenon, thus causing the reduction of current capacity. The manufacturer dont suggest to adopt this kind cable.8、外護套Outer sheath交聯(lián)聚乙烯絕緣電力電纜采用ST2型聚氯乙烯護套料或ST7型聚乙烯PE護套料擠包在鎧裝、金屬屏蔽或纜芯上。交聯(lián)聚乙烯絕緣阻燃電力電