3M高压电缆附件原理及产品方案
高压电缆附件及制作
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二、充油电缆终端头制作基本工艺说明
1.制作准备及检查 （1）现场准备及技术要
求。按高压充油电缆附件 制作技术要求，作好现场 准备及检查工作。 （2）工具器材准备。 （3）终端盒零部件检查
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2.安装电缆及剥切电缆护层
高压充油电缆的重量较大，要搁置在临时支 架上操作。
（2）锯铜带自中心起两侧各为700mm,松开400mm， 揩干净并绕包在铅包上。
（3）揩净铅包，包临时塑料带，套入铜套管不应碰到 护层的沥青时，要注意接地柱的方向应该成对，并套 入绝缘法兰。
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3.剖铅 自中心起两侧各长685mm,中心处锯线。 4.导线压接 插入钢芯衬芯并套上压接管，按工艺技术要
间接式：是指电缆终端顶部与变压器顶端在机 械上是分开的。
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4.复合套管式终端
复合套管式终端，其外绝缘是由一个玻璃 纤维加强的空心环氧树脂管组成，管子外覆盖 耐气候的绝缘硅橡胶雨裙的复合套管，两端由 通过阳极氧化处理的铝合金法兰封住，具有良 好的抗蚀能力，终端套管内填充绝缘硅油。
将预先放置在电缆上的套管拉入接头的内绝缘上，注 意不要碰坏内绝缘，固定好套管的位置后，搪铅。封 铅冷却后，立即恢复加强铜带，并按标准进行真空注 油。
8.安装沥青盒和灌注沥青胶
将两半沥青盒罩在接头上用螺栓连接，同时将制造 厂提供的沥青胶加热熔化，以沥青盒的注入孔徐徐注 入，直到灌满。
9.其他工序
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二、高压电缆中间接头
3M冷缩电缆附件 冷缩电缆头 冷缩中间头
电机电有限公司自2004年成立以来经销批发的电缆终端附件畅销消费者市场，在消费者当中享有较高的地位，公司与多家电气工程公司，零售商，和代理商本着薄利多销互惠互利的原则，建立了长期稳定的合作关系。
经销的电缆终端附件品种齐全、价格合理，公司实力雄厚，重信用、守合同、保证产品质量，承诺价一赔十，赢得了广大客户的信任。
深圳久电机电有限公司作为3M华南最大的3M代理商，主要经销3M（1-110KV）电缆附件，3M绝缘，防水胶带，电缆修复套装，70#，23#，2228,13#胶带，兼营德国KP,耐克森，等进口电缆附件及各种国标配件。
联系方式：183******** QQ：2644648206。
3M中压电缆及附件基本原理
冷缩型
预制型
冷缩式电缆附件有效弥补了热缩式和预制式电缆附件的一些缺陷， 同时兼有两者的一些技术特点，如：热缩电缆附件现场收缩安装、 一种型号产品适用于多种线径电缆的特点；预制式电缆附件多层结 构整体预制，多层结构的安装同时完成，且避免分层和内部气隙。
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Copyright © 3M 2010. All Rights
电气及防水性能好，电气强度高 缺点：
安装耗时费力, 已经基本淘汰,主要 用于中低压挤包型橡塑电缆或油纸绝 缘电缆，目前一般仅作为外护套防水 恢复。
绕包式电缆附件
19
Copyright © 3M 2010. All Rights
Reserved.
结构特征： 利用各种软质带材按工艺要求缠
绕而成，包括：绝缘胶带、半导电 胶带、金属屏蔽带、防水胶带等等。 一般应用于中低压挤包型橡塑电缆， 特殊配置的胶带套装对油纸绝缘电 缆也可适用
绝缘层类型
绝缘类型
PILC（油浸纸） XLPE（交联聚乙烯） EPR （乙丙橡胶） EPR* （耐热乙丙橡胶）
工作温度
80℃ 90℃ 90℃ 105℃
应急温度
95℃ 130℃ 130℃ 140℃
7
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Reserved.
电缆截面
8
Copyright © 3M 2010. All Rights
充油电缆充油电缆充油电缆充油电缆充油电缆充油电缆充油电缆充油电缆聚氯乙烯电缆聚氯乙烯电缆聚氯乙烯电缆聚氯乙烯电缆聚氯乙烯电缆聚氯乙烯电缆聚氯乙烯电缆聚氯乙烯电缆交联交联交联交联交联交联交联交联聚乙烯电缆聚乙烯电缆聚乙烯电缆聚乙烯电缆聚乙烯电缆聚乙烯电缆聚乙烯电缆聚乙烯电缆中压电缆附件的发展历史新型电缆附件预制推入式预制推入式预制推入式预制推入式预制推入式预制推入式预制推入式预制推入式冷缩式冷缩式冷缩式冷缩式冷缩式冷缩式冷缩式冷缩式适用于塑料绝缘电缆中压电缆附件的技术进步其实是跟随着电缆技术的进步逐步发展的电缆附件的技术进步其实是跟随着电缆技术的进步逐步发展的电缆附件的技术进步其实是跟随着电缆技术的进步逐步发展的电缆附件的技术进步其实是跟随着电缆技术的进步逐步发展的缩式电缆附件是目前技术最为先进的中压电缆附件缩式电缆附件是目前技术最为先进的中压电缆附件缩式电缆附件是目前技术最为先进的中压电缆附件缩式电缆附件是目前技术最为先进的中压电缆附件
3M产品规格
5624PST-G2 15KV 3×185mm2-3×300mm2套
5625PST-G 15KV 3×300mm2-3×500mm2套
冷缩三芯户外终端（普通型）
5601PST-G1 15KV 3×35mm2 -3×50mm2套
5601PST-G 15KV 3×35mm2 -3×70mm2套
7695K 15KV 1×500mm2 -1×630mm2套
7684K 35KV 1×50mm2 -1×95mm2套
7685K 35KV 1×120mm2 -1×185mm2套
7686K 35KV 1×240mm2 -1×630mm2套
冷缩三芯户内终端
7622PST-G1 15KV 3×35mm2 -3×50mm2套
HST-1/4（3+1）A-L1 1KV4×10mm2 -4×16mm2 L1=600mm套
HST-1/4（3+1）B-L1 1KV4×25mm2 -4×50mm2 L1=600mm套
HST-1/4（3+1）C-L1 1KV4×70mm2 -4×120mm2 L1=600mm套
HST-1/4（3+1）D-L1 1KV4×150mm2-4×240mm2 L1=600mm套
冷缩终端第二代产品
品名规格单位
冷缩单芯户内终端（每套含三相终端组件）
5623K 15KV 1×25mm2 -1×50mm2套
5624K 15KV 1×70mm2 -1×240mm2套
5625K 15KV 1×300mm2-1×630mm2套
冷缩单芯户内终端（每套含三相终端组件）
5633K 15KV 1×35mm2 -1×70mm2套
3M高压电缆产品选型表
3M高压电缆产品选型表110KV电缆TD123全干式电缆终端（户外）产品型号导体截面mm2TD123-B 240TD123-C 300TD123-D 400TD123-E 500TD123-F 600TD123-G 800TD123-H 1000110KV电缆TS123合成绝缘电缆终端（户外）产品型号导体截面mm2TS123-B 240TS123-C 300TS123-D 400TS123-E 500TS123-F 600TS123-G 800TS123-H 1000TS123-I 1200110KV电缆TP123瓷套式电缆终端（户外）产品型号导体截面mm2TP123-B 240TP123-C 300TP123-D 400TP123-E 500TP123-F 600TP123-G 800TP123-I 1200110KV电缆TG123 D/L全干式六氟化硫开关终端（长型）产品型号导体截面mm2TG123D/L-B 240TG123D/L-C 300TG123D/L-D 400TG123D/L-E 500TG123D/L-F 600TG123D/L-G 800TG123D/L-H 1000TG123D/L-I 1200110KV电缆TG123 D/S全干式六氟化硫开关终端（短型）产品型号导体截面mm2TG123D/S-B 240TG123D/S-C 300TG123D/S-D 400TG123D/S-E 500TG123D/S-F 600TG123D/S-G 800TG123D/S-H 1000TG123D/S-I 1200110KV电缆TG123W充油式六氟化硫开关终端产品型号导体截面mm2TG123W-B 240TG123W-C 300TG123W-D 400TG123W-E 500TG123W-F 600TG123W-H 1000TG123W-I 1200110KV电缆TT123 D/L全干式变压器终端（长型）产品型号导体截面mm2TT123D/L-B 240TT123D/L-C 300TT123D/L-D 400TT123D/L-E 500TT123D/L-F 600TT123D/L-G 800TT123D/L-H 1000TT123D/L-I 1200110KV电缆TT123 D/L全干式变压器终端（短型）产品型号导体截面mm2TT123D/S-B 240TT123D/S-C 300TT123D/S-D 400TT123D/S-E 500TT123D/S-F 600TT123D/S-G 800TT123D/S-H 1000TT123D/S-I 1200110KV电缆预制绝缘中间接头（豪华型）产品型号导体截面mm2SC123P-B 240SC123P -C 300SC123P -D 400SC123P -E 500SC123P -G 800SC123P -H 1000SC123P -I 1200110KV电缆预制绝缘中间接头（增强型）产品型号导体截面mm2SC123Q-B 240SC123Q-C 300SC123Q -D 400SC123Q -E 500SC123Q -F 600SC123Q -G 800SC123Q -H 1000SC123Q -I 1200110KV电缆预制推入式直通接头（豪华型）产品型号导体截面mm2SS123P-B 240SS123P-C 300SS123P -D 400SS123P-E 500SS123P-F 600SS123P -G 800SS123P -H 1000SS123P -I 1200110KV电缆预制推入式直通接头（增强型）产品型号导体截面mm2SS123Q-B 240SS123Q-C 300SS123Q -D 400SS123Q -F 600SS123Q -G 800SS123Q -H 1000SS123Q -I 12003M选型：15KV第二代单芯橡塑绝缘电力电缆冷缩终端（户内）型号：5623K 导体面积（mm2）：25-505624k 导体面积（mm2）：70-2405625k 导体面积（mm2）：300-63015KV第二代单芯橡塑绝缘电力电缆冷缩终端（户外）型号：5633K 导体面积（mm2）：35-705635k 导体面积（mm2）：95-2405636k 导体面积（mm2）：300-5005637k 导体面积（mm2）：500-800注：电缆绝缘外径为选型的最终决定因素，导体截面仅作参考。
3M冷缩中间接头产品(重要)
绕包式91绕包式91-A型中间接头 91
接头的结构： 接头的结构：
13#半导电胶带 13#半导电胶带
23#绝缘自融胶带 23#绝缘自融胶带
2220#应力控制带 2220#应力控制带
安装过程： 安装过程：
（1）开剥电缆，主绝缘端部按要求削铅笔头；（2）压接金属接管并打磨；（3）打磨清洗电缆 主绝缘；（4）在接管及电缆内半导电层上，绕包13#半导电胶带，恢复内屏蔽；（5）在铜屏蔽/ 外半导电端口处绕包13#半导电胶带及2220#应力控制带；（6）按要求绕包23#绝缘胶带，恢复 主绝缘层；（7）外部整体绕包13#半导电胶带恢复外半导电层。完成一相接头的安装。
绕包型 预制型 灌胶型
热缩型
冷缩型
3 Copyright © 3M 2008. All Rights Reserved.
各种中间接头的特点
灌胶式： 灌胶式：
优点： 优点： 防水性能好，适用性广，电气 强度高 缺点： 缺点： 安装不方便，耗时长，如内部 掺有气泡，容易发生开裂，一般仅 作为外护套防水恢复
6-20kV 等级
35kV等级 35kV等级
绕包式
矿用式 8096系列 8096系列
冷缩式
绕包式 9494-A系列 QSIII
冷缩式
QS3000
91-A 91系列
油交对接 系列
QS1000
QS2000QS2000-G
QS2000
在中国，目前应用于10kV系统的产品主要有：绕包式91-A系列、冷缩QS1000型、冷缩 绕包式91- 系列、冷缩QS1000型 绕包式91 QS1000 QS2000型 冷缩QSIII 冷缩QS3000 QS2000型；目前应用于35kV系统的产品主要是冷缩QSIII型，冷缩QS3000型是新开发的 冷缩QSIII型 冷缩QS3000型 35kV产品，将取代QSIII型中间接头。后面将重点介绍这几款常见中间接头的结M 2008. All Rights Reserved.
3M中压电缆附件结构及其他优势
安装屏蔽铜罩后：
安装中间接头后：
• 每个铜罩与对应截面电 缆的主绝缘外径相等，并 完整覆盖住接管，有效均 匀内部电场。
Copyright © 3M 2008. All Rights Reserved.
修正后，模拟计 算最高电场仅为 3.8kV/mm
9
电缆附件对防水的要求
• 为什么电缆附件必须具有优异的防水密封性能？
例子1：
外屏蔽半导电冷缩管
例子2：
• 整体模制外屏蔽层结构，无任 何分层，电气性能更稳定； • 无需分开安装，更简便并降低 因安装导致故障的可能性。
例1：通过一层独立的半导电冷缩管来恢复外屏蔽，容 易在绝缘层与外屏蔽之间残留气隙，发生局部放电； 例2：通过在接头外表面喷涂半导电漆的方法恢复外半 导电层，容易脱落，电阻率不均匀，屏蔽效果较差。
11 Copyright © 3M 2008. All Rights Reserved.
防水胶带保气试验结果
3M 2228#防水胶带 部分竞争对手的防水胶带
例子1：
例子2：
例子3：
• 无任何漏气想象，密封性能 良好。 例1 & 例2：大量漏气，防水胶带的密封性能非常差；
例3：小量漏气，性能优于例1及例2，但实际工况下， 一个小漏水点与多个大漏水点同样会导致进水，因此， 其防水性能也未能达到要求。
(High-K)折射法
即：高介电常数折射控制法
在电缆外屏蔽处设置高介电常数的 材料, 利用其与主绝缘的介电常数 的差异，使电力线在相邻的界面产 生折射现象，由此来降低屏蔽口的 电场强度。
3 Copyright © 3M 2008. All Rights Reserved.
外半导电断口处是电应力最集中点，最 容易发生击穿事故，需要对此处电应力进 行控制。 控制后 的电场
3M 中高压电缆接线、终端和接口设备说明书
3M™ Electrical Products Medium voltage joints, terminations and cable accessories.344677810 234Ever since the installation of the first 3M ™ Cold Shrink termination in 1972, we have developed products that deliver market leading efficiencies and reliability to our customers.3M ™ Cold Shrink technology ensures that a constant radial pressure is applied to the cable. This combined with acomprehensive factory testing programme and a simple installation process makes Cold Shrink the preferred termination solution for public and private networks operators across the world.34Prepare the cable as normal and clean with 3M ™ Cable Wipes.Place the 3M ™ Cold Shrink termination body over the cable and position at the correct point on the cable.Begin to remove the inner core, allowing the termination to shrink down onto the cable.Once the inner core has been fully removed, the termination installation is complete.123M ™ Plug-In EPDM Separable ConnectorsOur easy to install range of plug-in separable connectors are moulded using high quality EPDM and meet the requirements of EN 50180 and EN 50181.FeaturesŔStraight, elbow and symmetrical and assymetrical T-plug ŔAvailable for outer cone bushings type A, B, C andC1 (250 A, 400 A, 630 A and 1250 A) ŔSimple and safe installation on a wide range of cable sizes ŔMaintenance-freeŔOne piece design, with built in capacitive test point ŔFully screened, moisture-proof connectionŔFully type tested to Cenelec HD 629.1 and IEC60502-4ŔAvailable for voltage classes 6.6/11(12)kV, 20/22(24)kV, and 19/33(36)kV53M ™ Cold Shrink Fully Integrated Quick Termination III (QTIII)This fully integrated premium cable termination offers the greatest simplicity and flexibility in our range. Our premium termination covers a wide range of cable sizes and types. This termination has a shorter adjustable tail to enable it to fit into a wide range of boxes and with fewer installation steps it means there is less room for jointer error.3M ™ Cold ShrinkPart Integrated Quick Terminations (QTII)Although this part integrated Cold Shrink termination requires additional installation steps to our Premium QTIII range it still offers additional benefits over heat shrink cable terminations, which have many more parts to install, QTIIIQTIIMoisture Blocking Mastic Integrated into termination Applied separately using Scotch ® 70 Silicone Tape Outer Insulator Very good track resistance Good track resistance Stress Control Tube Integrated into termination Integrated into termination Silicone Grease providing Stress ReliefNo – integrated mastic is enough Yes – applied separately Stress Control MasticIntegrated into terminationNo – requires silicone greaseAll 3M™ Cold Shrink cable joints include built in componentsto ensure sound insulation, stress control and adequateearth potential over the screens. The 3M™ Cold Shrinktechnology ensures constant radial pressure is exertedover the cable for the duration of the cable joint’s life.34Place the 3M™ Cold Shrink splice body onto the prepared cable, connect the cores and clean thoroughly.Thoroughly grease theconnector cable in preparationfor the splice body.Once in position, beginto remove the inner coilfrom the splice body.For extra peace of mind,the splice body positionis easily checked usingthe marked centre point.1278Place the earth copper screen stocking over the splice body. Secure with3M™ Constant Force Springs.Insulate the constant forcesprings with Scotch® 23Rubber Splicing Tape andthen overlay with Scotch®Rubber Mastic Tape 2228.Position the pre-parked3M™ Cold Shrink OuterProtection Tube over thestocking and begin to removethe inner supporting core.Continue to removethe inner core until theouter tube is fully shrunk,completing the cable joint.56 FeaturesŔPrefabricated one-piece Cold Shrink splice body with integrated semi-conductive electrode forms a faraday cage over the connector and eliminates the use oftapes or additional moulded or metallic electrodesŔFast and easy installation at temperaturesranging from -20°C to +50°C ŔSuitable for a broad range of c able type and sizes ŔPermanent radial contact pressureŔSimple assembly by pulling out the spiral coreŔMeets and exceeds the requirements of European Standard CENELEC HD 629.1 and IEC 60502-4.QS1000QS2000QSIII QS200Splice Body Type Moulded Moulded Moulded ExtrudedRange Coverage 50mm² to 400mm²50mm² to 400mm²300mm² to 630mm²50mm² to 1000mm²Voltage Class 6.6/11(12)kV20/22(24)kV to19/33(36)kV 19/33(36)kV 6.6/11(12) kV to19/33(36)kV100% Factory TestedSplice BodyYes Yes Yes No67Our EPDM elastomer caps environmentally seal and protect exposed cables ends against dirt, moisture and mechanical deterioration.FeaturesŔEasy and quick to install ŔNo tools required for installation ŔCovers a wide range of cross sections ŔHigh mechanical strengthŔWaterproof, meets the requirements of ANSI C119.1 ŔResistant to various chemicals and ozone ŔApplication temperature up to 90°COur 3M ™ Cold Shrink Abandonment Kit CSCAK Series is a temporary or permanent solution for cable abandonment. The kits consist of 3M ™ Cold Shrink End Caps, 3M ™ Cold ShrinkPre-Stretched Tube, Scotch ® 23 Self Amalgamating Insulation Tape and earth connection components.FeaturesŔQuick, simple and reliable installationŔ A temporary or permanent solution for cable abandonment ŔEnvironmental sealing and mechanical protection ŔEnsures a permanent, waterproof seal and insulation ŔAvailable for single core, copper wire screened,medium voltage cables up to 33kV ŔWaterproof, meets the requirements of ANSI C119.1 ŔResistant to various chemicals and ozone ŔApplication temperature up to 90°C8Scotch ® Super 33+ Vinyl Electrical TapeA premium grade, 0.178mm thickness, highly conformable, PVC insulating tape with aggressive adhesive and elastic backing ensures easy, moisture tight electrical and mechanical protection. Excellent electrical insulating properties to provide primary electrical insulation for joints up to 600V.FeaturesŔExcellent cold weather handlingŔResistant to UV rays, abrasion, moisture, acids, and alkalis ŔFlame retardant, to UL510 ŔTemperature range -18ºC to 105ºCScotch ® Super 88 Electrical TapePremium grade, 0.2mm thick, all weather PVC insulating tape, designed to perform continuously in very low temperatures, and is conformable for installation at -18ºC. Aggressive adhesive ensures moisture tight electrical and mechanical protection.FeaturesŔTemperature range -40ºC to 105ºC ŔExcellent abrasion and puncture resistance ŔHigh tensile and mechanical strength ŔFlame retardant, to UL510Scotch ® 23 Rubber Splicing TapeA highly conformable, self-amalgamating EPR (Ethylene Propylene Rubber) tape, ideal for insulation and moisture sealing in many applications such as bus bar connections, re-jacketing, and primary insulation up to 69kV.FeaturesŔSpecial polyester liner that willnot stick when unwinding ŔStretch up to 100% for void-free,moisture-resistant insulation ŔNon-vulcanising and shelf-stable ŔOperating temperature up to 90ºCScotch ® ElectricalSemi-Conducting Tape 13A highly conformable, semi-conducting, EPR (Ethylene Propylene Rubber) tape. Conforms easily to irregular shapes and retains itsconductivity when stretched. This tape is used for high voltage connections and provides cable shield continuation and is compatible with all solid dielectric cable insulations.FeaturesŔSemi Conducting (low resistivity) ŔWithstands temperatures up to 90°C ŔPrevents partial discharge ŔExcellent resistance to solvents,UV and moisture9Scotch ® 70 Silicone Rubber Electrical TapeHigh temperature arc and track resistant tape composed of self-fusing, inorganic silicone rubber, 0.3mm thickness. This tape provides moisture sealing on outdoor systems, transformers and terminations up to 69kV. Extremely conformable, even at very low temperatures.FeaturesŔExcellent track and arc resistance ŔHigh dielectric strength 34kV/mmŔExcellent instantaneous fusion; does not needto be held down ŔClass H material (180ºC continuous operation)Scotch ®2228 Rubber Mastic TapeA conformable self-amalgamating rubber electrical insulating and sealing tape with an EPR (Ethylene Propylene Rubber) backing coated with a strong, temperature-stable mastic adhesive. This tape is 1.65mm thick and used to insulate, pad, and seal bus bar and connections up to 1000V.FeaturesŔGood adaptability to uneven surfaces ŔHigh material thickness for quickassembly of insulations and seals ŔTemperature resistance up to 90°CŔOutstanding weather and moisture resistanceScotch ® Cable Jacket Repair Tape 2234Professional grade mastic tape designed for cablejacket repair. This tape is flexible and self-amalgamating with good moisture resistance. It has a tough,abrasion-resistant backing and is quick and easy to apply. FeaturesŔFlexible and resistant to ageingŔResistance to weathering, oil, ozone and UV ŔMoisture-resistant, flame–retardant adhesive ŔTemperature range of -30 to 90°C3M ™ Scotchfil ™Electrical Insulation PuttyA soft, pliable putty which can be wrapped, stretched or moulded around irregular shapes for quick smooth insulation build-up. Use for joint insulation for electrical conductors at temperatures up to 80°C and over-wrap with Super 33+™ or Super 88 Vinyl Electrical Tape. Also suitable for some cable repair applications.FeaturesŔSoft and pliable – simply mould with your fingers ŔPermanently elastic and age-resistant ŔSelf-amalgamatingŔTemperature range of 0ºC to 80°C10Product family Joint type Application91-AH Heat Shrink Un-armoured power cables, standard buried application 91-AHA Heat Shrink Armoured power cables, standard buried application 92-NBA ResinUn-armoured power cables, standard buried application 92-NBA-GS Resin (CMR Free)Un-armoured power cables, standard buried application 92-NA-U Resin Un-armoured power cables, hazardous area application LVI-2Resin Armoured power cables, standard buried applicationLVI-2-PTU Resin Armoured Pilot and Telecom cables, standard buried application LVI-3Resin Armoured power cables, hazardous area applicationLVI-3-IC Resin Armoured Pilot and Telecom cables, hazardous area buried application 91-AC Cold Shrink Un-armoured power cables, indoor applicationLC Cold Shrink Armoured power or pilot and telecom cables, indoor application LC-STFFCold ShrinkArmoured power or pilot and telecom cables, indoor application,fire resistant3M supply a range of locating and marking, cable cleaners, wire pulling lubricants andcable marking products to complete your work.Contact us for more details.Low voltage jointingWe have a full portfolio of low voltage inline joints, including heat shrink, cold shrink and resin joints, for a wide range of applications.Sustainability at 3M –expanding our positiveglobal impact.3M will be investing approximately $1billion over the next20 years to accelerate three new environmental goals.ŔWe have committed to being carbon neutral across ourglobal operations by 2050, achieving a 50% reductionby 2030 and 80% by 2040 (from a 2019 baseline)ŔReduce water use by 25% at our facilities by 2030,including 10% by 2022 and 20% by 2025ŔReturn higher quality water to the environmentafter use in manufacturing operationsŔCombined these two goals will reduce 3M’s wateruse by 2.5 billion gallons (approx. 9.5 billion litres)each year1112© 3M 2021. All rights reserved. 3M is a trademark of 3M Company. OMG237173.3M™ EPDM Separable Connectors 11kV EPDM Indoor Plug In - for Single Core Copper Wire Screened Cables20kV EPDM Indoor Plug In - for Single Core Copper Wire Screened Cables33kV EPDM Indoor Plug In - for Single Core Copper Wire Screened Cables3M™ Cold Shrink Termination Products 11kV Indoor Terminations – Single Core11kV Indoor Terminations - Three Core11kV Outdoor Terminations - Three Core20kV Indoor Terminations - Single Core20kV Outdoor Terminations - Single Core20kV Outdoor Terminations -Three Core33kV Indoor Terminations - Single Core33kV Outdoor Terminations - Single Core33kV Indoor / Outdoor Terminations -Three Core3M Termination Accessories Barrier Boot KitsGland Kits & Seals3M™ Cold Shrink Jointing Products 11kV Straight Joints – Single Core11kV Straight Joints – Three Core**Add your choice of outer protection module, cold shrink or resin11kV Polymeric Trifurcating Joints11kV Stop End Joints11kV Branch Joints - Single Core11kV Branch Joints - Three Core20kV Straight Joints - Single Core20kV Branch Joints - Single Core33kV Straight Joints – Single Core33kV Straight Joints - Three Core33kV Transition Trifurcating JointsUK Selection – contact your local region for variationsUnit 7 Lumley CourtDrum Industrial EstateChester-le-StreetDH2 1ANT: 0191 410 4292E:***************************.ukW: 。
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110kV高压电缆附件产品解决方案
¾
3Innovation
3Innovation
3 高压电缆附件产品系列
中间接头
中间接头敞开式(户外)敞开式(户外)封闭式
封闭式电缆终端电缆终端 3 高压电缆附件
3 高压电缆附件瓷套式(TP123)瓷套式(TP123)合成绝缘式(TS123)
合成绝缘式(TS123)GIS 开关终端GIS 开关终端变压器终端变压器终端直通接头(SS123)直通接头(SS123)绝缘接头(SC123)绝缘接头(SC123)全干式(TD123)全干式(TD123)充油式(TG123W)充油式(TG123W)全干式(TG123D)全干式(TG123D)充油式(TT123W)充油式(TT123W)全干式(TT123D)
全干式(TT123D)
高压电缆中间接头的类型
按照安装方式可分为：
¾绕包型
¾组装式
¾预制型
3Innovation
3Innovation 1.绕包型接头
3 I 胶带绕包电缆接头
9应用最早9绝缘带层间不可避免存在气隙和杂质9绕包机对环境和工艺要求较高9可能出现应力锥厚度不同及变形的情况
——现在已经较少采用
高压电缆中间接头的类型
高压电缆中间接头的类型
2.组装型接头
9分为三部分：环氧绝缘筒，应Array力锥和压紧弹簧
9主体绝缘部分在工厂预制
9由于环氧材料和电缆绝缘材料
的膨胀系数相差很大，可能因为
温度变化而出现位移，所以需
加装压紧弹簧
——是向整体预制型过渡的产
品，逐渐将被淘汰
3Innovation
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3.整体预制型接头，如3SC123型
9导体屏蔽、主绝缘及应力锥由
富含弹性的硅橡胶整体预制而成9硅橡胶的过盈配合可保证充足
的界面压力9在负荷及温度变化的情况下可
自动平衡，无需弹簧
——有利于施工安装和质量控制，是高压中间接头附件的发展方向！高压电缆中间接头的类型
3Innovation
SC123 硅橡胶预制推入式电缆中间接头绝缘接头在此断开屏蔽层接交叉互联箱基本设计:
9外屏蔽, 内屏蔽和绝缘一体式设计，在工厂预制而成9金属保护管/PVC 管/热缩管/绝缘密封胶综合外护套恢复方式
9特殊工具推入式安装，保证过盈量
产品特点:9多层外护套恢复方式保证可靠的电气绝缘和密封防水
9硅橡胶主体可根据电缆冷热变化自动平衡，无需弹簧9预制式内电极形成法拉第笼屏蔽，防止放电预制式内电极
SC123 硅橡胶预制推入式电缆中间接头
安装过程
1.推入硅橡胶接头
主体到电缆一端
2.连接接管，将接
头主体推回到预
定位置（用钢架)
3. 树脂+铜胆+PVC套筒，恢复绝缘及护套
3Innovation
SC123 硅橡胶预制推入式电缆中间接头安装过程
3Innovation
3Innovation 瓷套充油式
Development 合成绝缘式
GIS 充油式
户外全干式
3M 可提供全系列产品
GIS/变压器
全干可插拔式
高压电缆终端附件的分类和发展
3Innovation
TS123 合成绝缘式电缆户外终端
硅橡胶堵油密封圈基本设计:
-合成绝缘子(内填充聚异丁烯油)
-硅橡胶伞裙, 玻璃纤维加强聚酯管，
-优良的防潮,抗污和憎水性能的硅橡胶外绝缘
-防污等级可达IV级，可提供防污大小伞裙
-预制式硅橡胶应力锥
-尾端硅橡胶堵油密封圈
TS123 合成绝缘式电缆户外终端
产品特点:
9结合传统充油和硅橡胶外绝缘的两方面优点
9重量较轻，便于安装
9运输中不易被损坏
9抗闪烙性好
9抗紫外线性好
3Innovation
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TD123 全干式硅橡胶绝缘电缆户外终端
尾部灌胶及热缩密封基本设计:
-全干式设计硅橡胶伞裙及应力锥
-尾部灌胶加热缩套管可靠密封
-优良的防潮,抗污和憎水性能的硅橡胶外绝缘
-防污等级为IV级
-预制式硅推入设计，安装方便
TD123 全干式硅橡胶绝缘电缆户外终端
产品特点:
9重量最轻，仅20KG，便于上塔
9全干式无任何漏油风险
9预制伞裙及应力锥推入式便于安装
9不充油，全免维护
9抗闪烙性好
9抗紫外线性好
3Innovation
TD123 全干式硅橡胶绝缘电缆户外终端
安装过程
3Innovation
硅橡胶作为外绝缘材料的优点
特有的疏水性
优异的抗紫外线老化性
优良的抗爬电性能
3Innovation
中压等级常用绝缘材料
陶瓷
硅橡胶
三元乙丙橡胶
EVA(热缩材料)
硅橡胶作为外绝缘材料的优点
什么是外绝缘的疏水性？
疏水性------
外界水落在外绝缘表面上形
成水珠状或水饼状的性能，与外
绝缘材料的表面张力大小有关，
一般用接触角的大小来衡量。
3Innovation
疏水性与亲水性比较
硅橡胶瓷套
3Innovation
疏水性与亲水性接触角比较
硅橡胶瓷套
Contact Angle
接触角大接触角小
亲水性的外绝缘材料往往导致绝缘表面泄漏电流值较大，表面电阻降低
3Innovation
3Innovation
安装结束长时间后硅橡胶的疏水性
硅橡胶的疏水性不会随着时间的变化和外表面污物的沉积而降低——“疏水恢复性”
硅橡胶作为绝缘材料的优点
——优异的抗紫外线老化性
紫外线造成的龟裂
3Innovation
3Innovation
为什么硅橡胶抗紫外线?
H C Si
O
H C C C H
H
H H H
H
H H
H H Si
Si Si Si Si O
O
O O O O O 445 KJ/mole 键能:
Si-O = 445 kJ /mole C-C = 348 kJ /mole 紫外线光能UV = 398 kJ /mole
Si-O --硅橡胶
C-C --for EPDM, EVA,
聚氯乙烯
电痕现象
3 I
抗电痕能力
3 I
硅橡胶作为最接近无
机物的橡胶材料，其抗电痕和抗爬电能力比一般橡胶材料高30%以上
3Innovation
1)具有长期优异的耐污性能，清扫工作量极小2)外表面绝缘电阻较大，泄漏电流得到有效抑制3)长期户外运行不会老化
4)相同爬距的硅橡胶伞裙的污闪电压比瓷套式高100%-150%5)湿闪电压仍为干闪电压的90%以上，无明显降低
6)沿面泄漏距离（即绝缘子长度和大小）可以设计得较短小
硅橡胶外绝缘
9疏水性9抗紫外线性
硅橡胶作为绝缘材料的优点
GIS六氟化硫气体绝缘开关电缆终端
•充油式
TG 123W/L
TG 123W/S
•全干式
TG123D/L
TG123D/S IEC60859《额定电压72.5kV及以上气体
长型/短型绝缘金属封闭开关的电缆联接装置》
3Innovation
TG123D 全干式GIS开关电缆终端技术参数
顶推弹簧机构基本设计:
9IEC60859标准环氧树脂绝缘筒
9预制全干式硅橡胶应力锥
9表带式可插拔电缆终端结构
9应力锥压力环和顶推弹簧保证足够压力9支撑套筒和电缆夹提供可靠机械保护
3Innovation
TG123D 全干式GIS开关可插拔电缆终端
产品特点:
9可插拔式结构可以在先将绝缘筒预装在GIS
上，应力锥和电缆在现场插入，无需放气
9可插拔式结构便于检修和试验
9全干式无漏油风险和烦恼，全免维护
9顶推弹簧机构有效固定应力锥，防止移位
9IEC60859标准接口
3Innovation
TG123D 全干式GIS开关可插拔电缆终端
特殊工具推入
硅橡胶应力锥
应力锥及电缆插
入环氧套筒(预
先安装在GIS上)
表带式结构(可插拔)
3Innovation
全干式GIS开关可插拔电缆终端
3Innovation
3Innovation
TT123D 全干式变压器可插拔电缆终端
9基本结构及技术参数与GIS终端相同
9IEC60859标准---长型/端型
9可插拔式结构
9全干式无漏油风险和烦恼
9顶端带有均压罩
9可水平或垂直安装
9裕度较高，最高电压可达170kV
谢谢各位!。