1、电缆用途
本产品适用于额定电压交流750V或直流1100V铁路信号系统轨道电路、列控自动装置和超速防护系统地面设备、计轴、车站电码化、微机联锁、计算机监测、调度集中、调度监督、大功率电动转辙机等有关信号控制装置和设备之间传输控制信息，监测信息和电能，可做为DMIS底层系统数字信息和业务电话的传输通道。
当用于ZPW—2000、UM71无绝缘轨道电路自动闭塞时，传输距离可达10km。其中内屏蔽铁路数字信号电缆，对传输四线组进行了单独屏蔽（分A型、B型，结构及电缆组序排列见示意图），因而提高了电缆近端串音衰减，有效解决了在同根电缆内传输相同频率的铁路信号信息时，各传输线组之间的干扰防卫问题。达到信号系统及设备之间，同缆同数量级电平的同频信息及最高2Mbit/s数字信息传输。同时可在铁路电气化和非电气化区段使用。
本电缆除基本型外还有阻燃型、防白蚁型、耐寒型、高屏蔽型等用于特殊环境的产品。
在电缆制造工艺方面，电缆主要原材料选用与IEC国际标准规定基本一致。绝缘导电线芯采用具有国际先进水平的皮-泡-皮物理发泡三层共挤技术。

2、电缆使用特性
2.1 电缆导体长期工作温度不超过70℃；  Use of the cable
The product is suitable for signal system track circuit for railway with rated voltage AC 750V or DC 1100V, train controlling automatic equipment and ground equipment of super-speed guarding system, axle counting system, station code, microcomputer interlocking, microcomputer monitoring system, and transmitting controlling information, monitoring information or power between signal equipment and control equipment such as some high-power electro-motive switch. The cable can be served as communication channel for DMIS skeleton information, business telephone or local communication.

The cable is suitable for ZPW-2000 and UM71 non-insulated rail circuit automatic blocking system, can meet the requirement of 10km transmission. Inner screen digital signal cable for railway, make separated shielding for transmit quad group (divided into A and B type, see the cable group's arrange the sketch map in structure), so increased near-end cross-talk attenuation of cable, effectively solved interference and defend problem in transmit line groups while transmit the railway signal information of the same frequency with the one cable. It has the transmit ability of same frequency of same level in one cable and transmit up to 2Mbit/s digital information between signal system and equipment. It can be used in section with electrified

There are flame-retardant, anti-termite, cold-resistant and high screening types cables for special environment
In manufacturing processing of the cable, the exertion of cable main material stipulates with international standards, such as IEC. Insulating core adopt with international state-of –the arts physical foamed skin-foam-skin 3-layer coating co-extruded technology.

Operating characteristics

The long-term working temperature of conductor is not more than 70℃；
 

 
2.2电缆使用环境温度为-40℃～60℃；

2.3电缆敷设时的环境温度应不低于-10℃；

2.4敷设时的弯曲半径：塑料护套、综合护套、铝护套铁路数字信号电缆非铠装电缆应不小于电缆外径的10倍；铠装电缆应不小于电缆外径的15倍；内屏蔽铁路数字信号电缆应不小于电缆外径的20倍；
2.5电缆机械强度高、防腐蚀、耐寒性能好，抗冲击力强；
2.6电缆屏蔽线组具有良好的屏蔽性能，可提高线组间的抗干扰能力。
3. 电缆施工要求
3.1电缆选用原则和敷设防护，建议参考TB 10007-99《铁路信号设计规范》、TB 10206-99
《铁路信号施工规范》；
3.2 内屏蔽铁路数字信号电缆敷设防护，建议参考中国铁路通信信号集团公司信号施工工艺研究所规定的《铁路内屏蔽数字信号电缆施工工艺》。
  The cable can work at the environment temperature -40℃ to +60℃；
During installation, the environment temperature is not less 10 ℃;
The bending radius during installation: For non-armored digital signal cable for railway with plastic sheath, composite sheath and Al sheath, the bending radius is not less than 10 times of outer diameter of cable; For armored cable, the bending radius is not less than 15 times of its outer diameter; For railway inner digital signal cable, the bending radius is not less than 20 times of its outer diameter.

The cable has property of strong mechanical strength, anti-corrosion, cold-resistant and anti-impulse.

It has good screen performance between screen groups of cable, so the performance of anti-interference will be proved.
Cable construction requiring

The choosing principle and laying guard of the cable, please refer to TB 10007-99 “Designing Specification of Railway Signal Cable” and TB 10206-99 “Construction Specification of Railway Signal Cable”.
The laying guard of railway inner screen digital signal cable, please refer to “Construction Craft of Railway Inner Screen Digital Signal Cable” which stipulated by The Signal Construction Craft Research Institute of China Railway Communication & Signal Company.
 

                       -2-
4、电缆型号、名称及敷设范围 Type, Name and Range of application
4.1基本型的电缆型号、名称及适用范围 Type, name and range application for ordinary cable
 
型  号
Type 名        称
Name 适 用 范 围
Range of application   
SPTYW03 铜芯皮泡皮物理发泡聚烯烃绝缘聚乙烯外护套铁路数字信号电缆
Digital signal cable for railway with copper core, skin-foam-skin physical foamed polyolefin insulation and PE outer sheath 适用于非电气化铁路。敷设在室内电缆架或室外电缆槽、管中。
The cable is applicable for non-electrified railway and suitable for being laid cable support indoors or cable trough, duct outdoors.   
SPTYW23 铜芯皮泡皮物理发泡聚烯烃绝缘双钢带铠装聚乙烯外护套铁路数字信号电缆
Digital signal cable for railway with copper core, skin-foam-skin physical foamed polyolefin insulation, double steel tape armor and PE outer sheath 适用于非电气化铁路。敷设在土壤、电缆槽、管中，能承受较大的机械外力。
The cable is applicable for non-electrified railway and suitable for being laid in soil, cable trough, duct, capable of withstanding external mechanical force.   
SPTYWA23 铜芯皮泡皮物理发泡聚烯烃绝缘综合护层双钢带铠装聚乙烯外护套铁路数字信号电缆
Digital signal cable for railway with copper core, skin-foam-skin physical foamed polyolefin insulation, composite shielding, double steel tape armor and PE outer sheath 适用于一般电场干扰的电气化铁路。敷设在土壤、电缆槽、管中，能承受较大的机械外力。
The cable is applicable for electrified railway with disturbance of electric field, and suitable for being laid in soil, cable trough, duct, capable of withstanding external mechanical force.   
SPTYWL23 铜芯皮泡皮物理发泡聚烯烃绝缘铝护套双钢带铠装聚乙烯外护套铁路数字信号电缆
Digital signal cable for railway with copper core, skin-foam-skin physical foamed polyolefin insulation, double steel tape armor and PE outer sheath 适用于有强电场干扰的电气化铁路。敷设在土壤、电缆槽、管中，能承受较大的机械外力。
The cable is applicable for electrified railway with disturbance of heavy electric field, and suitable for being laid in soil, cable trough, duct, capable of withstanding external mechanical force.   
SPTYWP03 铜芯皮泡皮物理发泡聚烯烃绝缘聚乙烯外护套内屏蔽铁路数字信号电缆
Inner screen digital signal cable for railway with copper core, skin-foam-skin physical foamed polyolefin insulation and PE outer sheath 适用于铁路敷设在电缆槽、管中或没有重压力的土壤中。
    
SPTYWP23 铜芯皮泡皮物理发泡聚烯烃绝缘钢带铠装聚乙烯外护套内屏蔽铁路数字信号电缆
Inner screen digital signal cable for railway with copper core, skin-foam-skin physical foamed polyolefin insulation, steel tape armor and PE outer sheath     
SPTYWPA23 铜芯皮泡皮物理发泡聚烯烃绝缘综合护层钢带铠装聚乙烯外护套内屏蔽铁路数字信号电缆
Inner screen digital signal cable for railway with copper core, skin-foam-skin physical foamed polyolefin insulation, composite shielding, steel tape armor and PE outer sheath 适用于一般电场干扰的电气化铁路。敷设在土壤、电缆槽、管中，能承受较大的机械外力。
The cable is applicable for electrified railway with disturbance of electric field, and suitable for being laid in soil, cable trough, duct, capable of withstanding external mechanical force.   
SPTYWPL23 铜芯皮泡皮物理发泡聚烯烃绝缘铝护套钢带铠装聚乙烯外护套内屏蔽铁路数字信号电缆
Inner screen digital signal cable for railway with copper core, skin-foam-skin physical foamed polyolefin insulation, Al sheath, steel tape armor and PE outer sheath 适用于有强电场干扰的电气化铁路。敷设在土壤、电缆槽、管中，能承受较大
的机械外力。
The cable is applicable for electrified railway with strong disturbance of electric field, and suitable for being laid in soil, cable trough, duct, capable of withstanding external mechanical force. 
4.2用于特殊环境的电缆型号、名称及特点、适用范围
Type, name, characteristic and application for special environment
 
型   号
Type 名     称
Name 特点、适用范围
Characteristic and application   
DW-SPTYWL23
DW-SPTYWA23 低烟无卤阻燃型铁路数字信号电缆
Digital signal cable for railway with low smoke halogen free flame retardant  低烟无卤、环保无公害型。信号控制室内、地铁、轻轨
Low smoke halogen free, environmental protection type cable without public hazards, which is suitable for signal control indoors, subway or light rail.   
FBY -SPTYWL23
FBY -SPTYWA23 防白蚁型铁路数字信号电缆
Digital signal calbe for railway with anti-termite 环保型无毒害防白蚁，热带或湿热带等蚁害地区
Environmental protection, poison free, anti-termite type cable, suitable for tropics or hot and humid area where subject to ant damage   
H-SPTYWL23
H-SPTYWA23 耐寒型铁路数字信号电缆
Digital signal cable for railway with cold-resistant 严寒地区
Chilliness area   
GP-SPTYWL23 高屏蔽型铁路数字信号电缆
Digital signal cable for railway with high-screen type 屏蔽系数0.1以下防止强电干扰的电气集中、轨道电路等信号系统
Shielding coefficient under 0.1,suitable for signal systems, such as electric concentration, track circuit that the strong electricity interfere 
                    -4-
5、 电缆型号组成及代号的含义Cable type composition and meaning of the code
5.1 型号由以下部分组成，各部分用代号表示，见图1。
The type is made up of following part, and each part is expressed with code. See figure 1.

5.2 代号的含义 Meaning of code

 
代 号
Code 含   义
Meaning 代 号
Code 含   义
Meaning   
SPT 铁路数字信号电缆
Digital signal cable for railway 23 双钢带铠装聚乙烯外护套
Double steel tape armor PE outer sheath   
YW 皮-泡-皮物理发泡聚烯烃绝缘
Skin-foam-skin physical foamed polyolefin insulation H— 耐寒型 Cold-retardant type   
P 内屏蔽  Inner screen DW— 低烟无卤阻燃 Low smoke halogen free flame retardant   
L 铝护套 Al sheath FBY— 防白蚁型 Anti-termite   
A 综合护套 Composite sheath GP— 高屏蔽型 High-screen type   
03 非铠装聚乙烯外护套
Non-armor PE outer sheath   

6、电缆主要技术指标 Main technical index of cable
 
序号
Ser. No 项       目
Item 指  标
Index 试验方法
Test method 换算公式
Conversion formula   
1 直流电阻     20℃                 Ω/km
DC resistant
每根导体直流电阻
DC resistant for each conductor
工作对导体直流电阻不平衡①       %
Resistance unbalance of conductor working pair 22.5±1.0
 ≤1 GB/T3048.4 L/1000   
2 绝缘电阻   DC 500V　20℃      MΩ·km
Insulation resistant
每根绝缘线芯对其它绝缘线芯接屏蔽及金属套
Each insulated wire versus other insulated wire connecting to screen and metal sheath    ≥10000  GB/T3048.6 1000/L   
3 绝缘介质强度   　50Hz  2min        V
Insulated dielectric strength
线芯间
Between wires
所有线芯连在一起（或每根线芯）对屏蔽与金属套
All wires connected together(or each wire) versus screen and metal sheath ≥1000
 ≥2000 GB/T3048.8 -------   
4 电容   0.8KHz～1.0kHz  　　      nF/km
Capacitance
非屏蔽四线组 Non-screen quad
屏蔽四线组 Screen quad
对线组 Pair
每根绝缘线芯对连接到地的其它绝缘线芯间电容
Capacitance between each insulated wire and other insulated wire connecting to ground 28±3
28±2
35±4
≤70 GB5441.2 L/1000   
5 电容耦合系数  0.8KHz～1.0kHz     pF/km
Capacitance coupling coefficient
  K1        　    平均值 Average value
最大值 Maximum value
  K9～K12   　    平均值 Average value
最大值 Maximum value
四芯电缆K1值指标为最大值
For 4-core cable, k1 is the maximum value ≤81
≤330
   ≤119
   ≤230 GB5441.3 
 
L/1000
   
L/1000
   
6 对地电容不平衡系数0.8KHz～1.0KHz pF/km
Capacitance unbalance to earth
  ea1、ea2    　   平均值 Average value
           　   最大值 Maximum value
四芯电缆ea1、ea2指标为最大值
For 4-core cable, e1、e2 are the maximum
value
允许有10%盘数的ea1、ea2≤1294  pF/km
e1、e2 of 10% drums≤1294 pF/km is permissible 

≤330
≤800 GB5441.3 L/1000   
  回路间近端串音衰减             dB/1000m
Near-end cross-talk attenuation between  circuit
150kHz        组内 inner group
组间 between groups 
   ≥51[51]
   ≥55[65]   （）    
  回路间近端串音衰减②         300m及以上
Near-end cross-talk attenuation between  circuit
1000kHz         组内 inner group
组间 between groups  
  
   ≥37[37]
   ≥42[54]       

8

 回路间远端串音防卫度    dB/1000m
Far-end cross-talk ratio between circuit
150 kHz        组内  inner group
组间  between groups
1000kHz        组内  inner group
组间  between groups   
   ≥52[52]
≥62[72]
≥39[39]
≥49[59] GB5441.6 -10Lg（L/1000） 
                     -6-
                                     续表                                   cont’d
 
序号
Ser.No 项       目
Item 指  标
Index 试验方法
Test method 换算公式
Conversion formula   
9 特性阻抗③   20℃            Ω
Characteristic impedance
0.55kHz
0.85kHz
1.7kHz
2.0kHz
2.3kHz
2.6kHz
150kHz
1000kHz 

675±68[±54]
550±33[±22]
396±24[±16]
367±22[±15]
343±21[±14]
325±20[±13]
163±17[±17]
155±16[±16] GB/T 5441.7 —   
10 线对衰减④  20℃           dB/km
Attenuation of pair
0.55kHz
0.85kHz
1.7kHz
2.0kHz
2.3kHz
2.6kHz
150kHz
1000kHz 

≤0.45
≤0.55
≤0.70
≤0.75
≤0.80
≤0.83
≤3.5
≤9.0 GB/T 5441.7 L/1000   
11 相角                            °
Phase angle
0.55kHz
0.85kHz
1.7kHz
2.0kHz
2.3kHz
2.6kHz 
-43±4.3[±1.3]
-42±4.2[±1.3]
-39±3.9[±1.2]
-38±3.8[±1.1]
-37±3.7[±1.1]
-36±3.6[±1.1] GB/T 5441.7 —   
12 近端串音衰减      2.6kHz,   ≥300m
Near-end cross-talk attenuation
(近端阻抗55Ω，远端阻抗325Ω) dB
(Near-end impedance 55Ω,far-end impedance 325Ω)db
两屏蔽四线组内，各有一线对的一线芯接地，此两线对间的近端串音衰减
In two shielding quad, each working pair has a core connecting to ground ≥89 TB/T3100.5—2004附录A
(Appendix A)    
13 屏蔽铜带与泄流线间直流电阻  20℃  Ω
DC resistance between screen copper tape and drain wire ≤0.01 GB/T 3048.4 —  
注： ①导体电阻不平衡，即工作线对两根导体的电阻之差与其电阻之和的比值。
       Resistance unbalance of conductor, namely the difference of the resistance to two conductors of working pair and its ratio of the sum of the resistance
②当长度小于300m时，近端串音换算公式为-10lg{〔1-10-(α×L/5)〕/ 〔1-10-(α×0.3/5)〕}。式中：α为
线对衰减， db/ km。  
When the length is not more than 300m, conversion formula of near-end cross-talk is: -10lg{〔1-10-(α×L/5)〕/ 〔1-10-(α×0.3/5)〕},where: αis attenuation of pair, dB/km
③20℃时的特性阻抗温度系数在0.55kHz～2.6kHz时为0.002    1/℃。
In 0.55kHz～2.6kHz, characteristic impedance temperature coefficient at 20℃ is 0.002 1/℃.
④20℃时的衰减温度系数为0.002    1/℃。
Attenuation temperature coefficient at 20℃ is 0.002.
⑤表中第7、8、9、11条的[]数据为电缆的屏蔽四线组的指标或公差范围。
 The [] data in clause 7, 8, 9, 11 which is in the table is the index or tolerance range of shielding quad of cable.
7、电缆的缆芯结构、参考外径及参考重量
Core construction, reference outer diameter and weight of cable
7.1塑料护套、综合护套、铝护套铁路数字信号电缆
Digital signal cable for railway with plastic sheath, composite sheath and Al sheath
 
规格
（芯数）

  缆 芯 结 构
Core construction 塑料护套
Plastic sheath 综合护套
Composite sheath 铝护套
Al sheath   
  （四线组＋对线组＋绝缘线芯）×
＋＋×  非铠装
Non-armor
SPTYW03 铠装
Armor
SPTYW23 铠装
Armor
SPTYWA23 铠装
Armor
SPTYWL23   
    外径
O.D
mm 重量
Weight
kg/km 外径
O.D
mm 重量
Weight
kg/km 外径
O.D
mm 重量
Weight
kg/km 外径
O.D
mm 重量
Weight
kg/km   
4 (1×4)×1.0 9.3 80 12.3 164 15.5 269 20.9 505   
6 (3×2)×1.0 12.2 116 15.4 245 16.9 294 23.1 731   
8 (2×4)×1.0 13.8 143 17.0 289 18.5 351 24.1 792   
9 (2×4＋1)×1.0 13.8 152 17.0 298 18.5 360 24.1 800   
12 (3×4)×1.0 14.5 182 17.7 336 19.2 398 25.6 884   
14 (3×4+2)×1.0 14.5 200 17.7 353 19.2 415 25.6 901   
16 (4×4)×1.0 16.3 228 19.5 400 21.4 474 27.3 990   
19 (4×4＋3)×1.0 16.3 254 19.5 426 21.4 499 27.3 1015   
21 (5×4＋1)×1.0 17.3 277 20.5 459 22.4 537 27.3 1037   
24 (6×4)×1.0 17.8 306 21.0 494 22.9 572 29.3 1129   
28 (7×4)×1.0 19.3 351 22.5 553 24.2 634 30.5 1216   
30 (7×4＋2)×1.0 19.3 368 22.5 571 24.2 651 30.5 1233   
33 (7×4＋5)×1.0 20.3 400 23.5 613 24.9 689 31.5 1300   
37 (7×4＋3×2＋3)×1.0 21.8 444 25.0 672 27.1 773 32.7 1387   
42 (7×4＋4×2＋6)×1.0 22.8 494 26.0 732 28.1 834 33.7 1471   
44 (7×4＋4×2＋8)×1.0 22.8 511 26.0 749 28.1 851 33.7 1489   
48 (12×4)×1.0 25.1 561 28.5 832 31.5 1216 36.7 1645   
52 (12×4＋4)×1.0 25.1 595 28.5 866 31.5 1251 36.7 1679   
56 (14×4)×1.0 26.3 638 30.9 1198 33.0 1335 37.9 1768   
61 (14×4＋5)×1.0 26.3 681 30.9 1241 33.0 1378 37.9 1811 
                        -8-
7.2塑料护套、综合护套、铝护套铁路数字信号电缆结构截面图
  Structure sectional picture of digital signal cable for railway with plastic sheath, composite sheath and Al sheath

7.3内屏蔽铁路数字信号电缆  Inner screen digital signal cable for railway

 
规格
芯数

  缆 芯 结 构
Core construction 塑料护套
Plastic sheath 综合护套
Composite sheath 铝护套
Al sheath   
  （屏蔽四线组＋四线组＋绝缘线芯）×
＋＋×  非铠装
Non-armor
SPTYWP03 铠装
Armor
SPTYWP23 铠装
Armor
SPTYWPA23 铠装
Armor
SPTYWPL23   
    外径
O.D
mm 重量
Weight
kg/km 外径
O.D
mm 重量
Weight
kg/km 外径
O.D
mm 重量
Weight
kg/km 外径
O.D
mm 重量
Weight
kg/km   
8B (2×4P)×1.0 21.84 397 24.4 534 25.04 623 30.0 1080   
12A (2×4P+1×4)×1.0 21.84 441 24.4 568 25.04 667 30.0 1114   
12B (3×4P)×1.0 22.84 500 25.4 629 26.04 737 31.0 1196   
14A (2×4P+1×4+2)×1.0 21.84 469 24.4 583 25.04 695 30.0 1129   
14B (3×4P+2)×1.0 22.84 544 25.4 644 26.04 781 31.0 1211   
16A (2×4P+2×4)×1.0 21.84 485 24.4 601 25.04 712 30.0 1148   
16B (4×4P)×1.0 26.84 650 29.6 787 31.64 1226 35.4 1449   
19A (3×4P+1×4+3)×1.0 24.34 609 26.9 714 27.74 869 32.7 1320   
19B (4×4P+3)×1.0 26.84 717 29.6 809 31.64 1293 35.4 1472   
21A (3×4P+2×4+1)×1.0 25.84 664 28.6 766 29.24 940 34.4 1408   
21B (5×4P+1)×1.0 28.04 813 32.0 1182 32.64 1403 36.6 1586   
24A (4×4P+2×4)×1.0 28.04 782 32.0 1166 32.64 1371 36.6 1569   
24B (6×4P)×1.0 30.74 985 34.7 1336 35.34 1627 39.8 1786   
28A (4×4P+3×4)×1.0 28.04 842 32.0 1199 32.64 1431 36.6 1603   
28B (7×4P)×1.0 30.74 1070 34.7 1412 35.34 1712 39.8 1862   
30A (4×4P+3×4+2)×1.0 29.04 875 32.5 1228 33.64 1485 37.8 1669   
30B (7×4P+2)×1.0 30.74 1114 34.7 1427 35.34 1756 39.8 1877   
33A (4×4P+4×4+1)×1.0 30.04 927 34.2 1310 34.84 1567 38.8 1735   
37A (4×4P+5×4+1)×1.0 30.04 986 34.2 1344 34.84 1626 38.8 1769   
42A (5×4P+5×4+2)×1.0 32.24 1149 36.2 1485 36.84 1822 40.8 1958   
44A (6×4P+5×4)×1.0 35.44 1292 39.4 1648 40.04 2029 44.0 2156   
48A (6×4P+6×4)1.0 35.44 1336 39.4 1681 40.04 2072 44.0 2189 

                        -10-
7.4内屏蔽铁路数字信号电缆结构截面图
   Structure sectional picture of inner shielding digital signal cable for railway

8、 电缆的A端线序、组序排列示意图
The arrangement sketch map for “A” end wire order, group order of cable
8.1塑料护套、综合护套、铝护套铁路数字信号电缆四线组A端线序、缆芯A端组序顺时针排列示意图。
    The clockwise arrangement sketch map of quad “A” end wire order and cable core “A” end group order of cable for Railway digital signal cable with plastic sheath, composite sheath and Al sheath.
 

                                            -12-

注（Note）：红—red  绿—green  白—white  蓝—blue  棕—brown  黄—yellow

8.2内屏蔽铁路数字信号电缆四线组A端线序、缆芯A端组序顺时针排列示意图
The clockwise arrangement sketch map of quad “A” end wire order and cable core “A” end group order of cable for Railway inner screen digital signal cable

                    -14-

注（Note）：红—red  绿—green  白—white  蓝—blue  棕—brown  黄—yellow

9、产品交货长度 Delivery length
9.1通常1000m以上长度的电缆不少于交货总数的50%，500m以下长度的电缆不超过交货总数的5%。
Cable with length 1000m and over do not less than 50% of total delivery length, and with length less than 500m not more than 5% of total delivery length.

9.2电缆长度计量误差±0.5%。
Tolerance of metering length do not exceed ±0.5%.
9.3根据双方协议，允许以任意长度交货。
   Cable can be delivered at any length by negotiation.
10、产品标记、出厂包装、运输及贮存说明 Marks, package, transportation and storage
10.1标志 Marks
在电缆外护套上印有如下标记：制造工厂名称或工厂代号；型号、规格、相邻间隔为1m的长度标志。
Each cable is marked with name of manufacturer or code of factory, type and specification on outside cable sheath, distance of length mark is not more than 1m.
在电缆盘上应标明有如下标识：制造厂名称；电缆型号、规格；长度  m；毛重 kg；出厂编号；制造日期 年 月；敷设时电缆盘旋转方向的箭头以及附有产品合格证。
There are following signage clearly marked on cable drum:
Name of manufacturer, type, specification, length m, gross weight kg, ex-work number, manufacture date, arrow showing the correct rotating direction of the cable drum, and attached quality certification.
10.2出厂包装 Package
10.2.1电缆两端头使用带胶热缩套管密封。电缆分层整齐卷绕在电缆交货盘上，外包专用塑料和竹笆。电缆盘符合JB/T 8137规定。
Special sleeves are applied for sealing of both ends of the cable. The cable is wound in good order around the cable drum, the outer package is private plastic and ferula. The cable drums satisfy the requirements as stipulated in JB/T 8137.
10.2.2电缆“A”端一般在卷绕的最外层，当B端在卷绕最外层时，电缆盘上注明“外B”字样。
 “A” end of cable is usually the outside end of package; the “B” end is allowed to be the outside of shipment, while the "outside B" is marked on the drum.
可按供需双方协商的条件另外确定包装形式。
The package form may be made by negotiation.
10.2.3运输、贮存 Transportation and storage
电缆盘应直立摆放，严禁电缆盘平放，严禁电缆受到碰撞或造成机械损伤。必须防止电缆头受潮或进水。
The cable drum should be place erectly, not flatwise, the bump or mechanical damage to the cable should be prevented. The cable should be stored carefully, avoiding the humidity and water infiltration.

                         -16-