額定電壓6kV～35kV交聯聚乙烯絕緣電力電纜

Cross-linking polyethylene insulated power cables

with rated voltages from 6kV up to 35kV

一、產品用途 Products application

交聯聚乙烯絕緣電纜適用于配電網、工業裝置或其他需要大容量用電領域，用于固定敷設在交流50Hz、額定電壓6kV～35kV的電力輸配電線路上，主要功能是輸送電能。

交聯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，可避免火災事故擴大以減少損失，適用于地鐵、遂道、高層建筑等電纜敷設密集程度較高的場所。

交聯聚乙烯絕緣無鹵低煙阻燃電纜具有優良的阻燃性、耐腐蝕性及低煙濃度，是一種環保型產品，適用于地鐵、商場、學校等人員密集型場所。

上述產品為通常條件下使用的產品，不適用一些特殊條件的場合，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 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 can 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 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、產品主要技術特點 Technique features

交聯聚乙烯絕緣電纜采用過氧化物交聯的方法，使聚乙烯分子由線型分子結構變為三維網狀結構，由熱塑性材料變成熱固性材料，工作溫度從70℃提高到90℃，顯著提高電纜的載流能力。

交聯聚乙烯絕緣電纜具有優越的電氣性能、耐熱性能、耐化學性能、耐環境應力開裂性能、抗老化性能，具有長期的使用壽命。

無鹵低煙阻燃交聯聚乙烯絕緣電纜具有優良的阻燃特性，護套材料不含鹵素，能夠保證在燃燒時只釋放少量的毒性和腐蝕性氣體，具有產生煙霧較少等特點，是一種環保型的新產品，同時具有優越的電氣性能、耐熱性能、耐化學性能、耐環境應力開裂性能、抗老化性能，具有長期的使用壽命。

本產品結構簡單，制造周期短，易于安裝和維護，敷設時不受落差限制。

XLPE polyethylene insulated power cables, this product is manufactured by parasitical 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 raise the cable current capacity highly.

XLPE polyethylene insulated power cables, the product 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-retardant 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 resistance 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、產品執行標準 Standards

IEC 60502-2:1997   額定電壓1 kV(Um=1.2 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)  Part 2:Cables for rated voltages  of 6kV(Um=7.2kV)up to 30 kV（Um=36 kV）

GB/T 12706.2-2002  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)  Part 2:Cables for rated voltages  of 6kV(Um=7.2kV)up to 30 kV（Um=36 kV）

GB/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)  Part 3:Cables for rated voltages  of 35kV(Um=40.5kV)

GB/T 19666-2005    阻燃和耐火電線電纜通則

General Rules of flame-retarding and fireproof cables

GB/T 3956-1997     電纜的導體

     Conductor of Cables

四、使用特性 Operating characteristics

1、  額定電壓 Rated Voltage

電纜額定電壓U₀/U(U_m)表示方法如下：

Rated Voltage of cable U₀/U(U_m)，as follow：

U₀/U(U_m)＝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：電纜設計用的導體對地或金屬屏蔽之間的額定工頻電壓；

U：電纜設計用的導體間的額定工頻電壓；

U_m：設備可承受的“Z高系統電壓”的Z大值。

電纜的額定電壓應適合電纜所在系統的運行條件。為了便于選擇電纜，將系統劃分為下列三類：

——A類：任一相導體與地或接地導體接觸時，能在1min內與系統隔離。

——B類：可在單相接地故障時作短時運行，但任何情況下不宜超過8h，每年接地故障總持續時間不宜超過125h。

——C類：包括不屬于A類和B類的系統。

注：在系統接地故障不能立即自動解除時，故障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。如系統預期會經常地運行在持久的接地故障狀態下，該系統應劃為C類。

Notes：

U₀：Rated A.C. Voltage between conductor and ground/metal screen;

U：Rated A.C. Voltage between conductors

U_m：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 category 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 earthed. 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 can't be removed automatically, the life of cable will be shortened in some degree because of the over-high electric stress bewared by cable insulation.

用于三項系統的電纜，U₀的推薦值見表1。

The recommended figure of U₀ see the table 1, which are suitable for the three systems.:

表1  額定電壓U₀推薦值

Table1 the recommended figure of U₀

2、  導體額定工作溫度

電纜導體的Z高額定工作溫度為90℃。

短路時（Z長持續時間不超過5s）電纜導體的Z高溫度不超過250℃。

The rated temperature of conductor

The maximum assigned temperature of the cable conductor is 90℃.

During having a short circuit, lasting less than 5 seconds, the maximum temperature of the cable conductor shall not be above 250℃.

3、  敷設環境溫度

    電纜敷設時的環境溫度應不低于0℃，否則需要事先預熱。

Ambient temperature for laying

The ambient temperature for laying shall be above 0℃, otherwise the cable need be preheated.

4、  安裝彎曲半徑

The bend radius

安裝時電纜Z小彎曲半徑見表2。

The minimum bend radius of the cable see the table 2

表2  電纜安裝時Z小彎曲半徑

Table2 The minimum bend radius of the cable

5、  敷設方式 Laying

電纜沒有敷設落差限制。

電纜允許敷設在室內、室外、空氣中和土壤中，允許局部有積水。

電纜敷設方式可以是隧道、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。

單芯電纜不允許敷設在磁性金屬管內。

電纜敷設環境應有良好的散熱條件。

There is no limit of head drop during 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 single core cable mustn't be laid in the magnetic metal pipes.

The environment of cable laying shall be in good heat dissipation condition.

6、  電纜敷設時導體Z大允許牽引力和電纜Z大允許側壓力

The maximum allowed haul-off force and lateral pressure of cable

導體Z大允許牽引力計算方法：

The calculating method of the maximum allowed haul-off force :

——銅導體(Cu)：F=70×S（N/mm²）。

——鋁導體(Al)：F=40×S（N/mm²）。

側壓力計算方法：The calculating method of the maximum allowed lateral pressure：

P=F÷R（N/m），Z大允許側壓力不超過3000N/m。

P=F÷R（N/m），The maximum allowed lateral pressure≤3000N/m

式中：F－牽引力，N；            F－Lateral pressure，N；

S－導體截面，mm²；        S－Conductor section，mm²；

P－側壓力，N/m；          P－lateral pressure，N/m；

R－電纜彎曲半徑，m。      R－Bend radius，m。

7、  電纜運輸和保管要求 ：

   電纜盤不允許平放。

運輸中嚴禁從高處扔下裝有電纜的電纜盤，嚴禁機械損傷電纜。

電纜如果需要分段使用，電纜分段后必須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 from damages

If the cable should be used sectionally, the head of the cable must be sealed in order to prevent water intake.

五、產品表示方法 Expressed method of product

1、代號Code

系列代號Series code

  阻燃系列 Flame-retardant series

  阻燃A類 Flame-retardant class A…………………………………………………………………………ZA

  阻燃B類Flame-retardant class B………………………………………………………………………ZB

  阻燃C類Flame-retardant class C…………………………………………………………………………ZC

  阻燃D類Flame-retardant class D…………………………………………………………………………ZD

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 A………………………………WDZA

  無鹵低煙阻燃B類Low-smoke zero-halogen flame-retardant class B………………………………WDZB

  無鹵低煙阻燃C類Low-smoke zero-halogen flame-retardant class C………………………………WDZC

  無鹵低煙阻燃D類Low-smoke zero-halogen flame-retardant class D………………………………WDZD

導體代號Conductor code

銅導體（省略）Copper conductor ( omitted )………………………………………………………………T

鋁導體Aluminum conductor…………………………………………………………………………………L

絕緣代號Insulation code

交聯聚乙烯絕緣 Cross-linking polyethylene(XLPE) insulated…………………………………………YJ

    護套代號^1）Sheath code

聚氯乙烯護套 Polyvinyl chloride and sheath………………………………………………………………V

聚乙烯護套 Polyethylene sheath……………………………………………………………………………Y

    鎧裝代號Amour code

雙鋼帶鎧裝steel tape armoured ……………………………………………………………………………2

細圓鋼絲鎧裝thin steel-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 armoured………………………………………6

非磁性金屬絲^3）鎧裝Non-magnetic metal-wire armoured…………………………………………………7

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：

1）   包括擠包的內襯層和隔離套等。

2）   非磁性金屬帶包括不銹鋼帶、鋁帶等，若訂貨時未注明，采用何種材料由制造方確定。

3）   非磁性金屬絲包括不銹鋼絲、銅絲、鋁絲等，若訂貨時未注明，采用何種材料由制造方確定。

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 are including stainless steel tape, aluminium tape, etc. The materials will determined by the manufacturer, if the buyer not mentioned.

2、產品表示方法Expressed method of product

產品用型號（型號中有數字代號的電纜外護層，數字前的文字代號表示內護套）、規格（額定電壓、芯數、標稱截面）和標準編號表示。

The product is described as type (figure code of cable outer sheath, the word code in front of the figure means inner sheath), specification(rated voltage, cores numbers, sectional area ) and standards code.

3、產品型號組成The consistent of specifications

產品型號的組成和排列順序如下：

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 specifications are the series code.

4、產品表示方法 Expressed method of product

  示例：

（1）銅芯交聯聚乙烯絕緣（聚乙烯內護套）鋼帶鎧裝聚氯乙烯護套電力電纜，額定電壓8.7/15kV，三芯，標稱截面240mm²，表示為：

YJY22-8.7/15  3*240  GB/T 12706.2-2002

（2）銅芯交聯聚乙烯絕緣（聚乙烯內護套）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，標稱截面150mm²，表示為：

ZC-YJY22-8.7/15  3*150  GB/T19666-2005/ GB/T 12706.2-2002

（3）銅芯交聯聚乙烯絕緣（聚乙烯內護套）鋼帶鎧裝聚烯烴護套無鹵低煙阻燃C類電力電纜，額定電壓8.7/15kV，三芯，標稱截面185mm²，表示為：

WDZC-YJY23-8.7/15  3*185  GB/T19666-2005/ GB/T 12706.2-2002

（4）鋁芯交聯聚乙烯絕緣（聚乙烯內護套）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，標稱截面185mm2表示為：

 WDZA-YJLY23-26/35  3*185  GB/T19666-2005/ GB/T 12706.2-2002

  Example:

（1）Copper conductor ,XLPE insulated, (PE inner sheath) steel tape armoured 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 12706.2-2002

（2）Copper conductor ,XLPE insulated, (PE inner sheath) steel tape armoured and PVC sheathed class C flame-retardant power cables, rated Voltages 8.7/15kV, three cores, Nominal cross area 150mm2, see the following:

ZC-YJY22-8.7/15 3*150  GB/T19666-2005/ GB/T 12706.2-2002

（3）Copper 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, nominal sectional area 185mm^2,, see the following

WDZC-YJY23-8.7/15 3*185  GB/T19666-2005/ GB/T 12706.2-2002

（4）Aluminium 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 sectional area 185mm^2,, see the following

  WDZA-YJLY23-26/35 3*185  GB/T19666-2005/ GB/T 12706.2-2002

六、產品型號、規格Types and specifications of products

1、產品型號 Type of product

產品常用型號見表3～5。

For the common product types , please see the table 3～5

表3額定電壓6-35kV交聯聚乙烯絕緣電力電纜產品型號

Table 3 XLPE insulated power cables with rated voltages from 6kV up to 35kV

  Type of product

表4額定電壓6-35kV交聯聚乙烯絕緣阻燃電力電纜產品型號

Table 4 XLPE insulated flame-retardant power cables with rated voltages from 6kV up to 35kV

Type of product

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交聯聚乙烯絕緣阻燃電力電纜產品型號

Table 5 XLPE insulated flame-retardant power cables with rated voltages from 6kV up to 35kV

Type of product

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、產品規格Specification of product

產品額定電壓、導體標稱截面和芯數見表6。

For product rated voltage, conductor sectional and the numbers of cores, please see the book 6.

表6  產品額定電壓、導體標稱截面和芯數

Table 6 rated voltage, sectional area of conductor and the numbers of cores