Medium Voltage Distribution Cable 中壓配電電纜
What is BS7870-4.10 Cable? Medium Voltage Distribution Cable 什麼是BS7870-4.10電纜？中壓配電電纜
A comprehensive technical guide to British Standard BS7870-4.10 polymeric insulated medium voltage cables for primary power distribution in utility and generation industry sectors.
英國標準BS7870-4.10聚合物絕緣中壓電纜技術全面指南，用於公用事業和發電行業的一次配電。
Introduction to BS7870-4.10 Standard BS7870-4.10 標準介紹
British Standard BS7870-4.10 specifies requirements for medium voltage (MV) polymeric insulated cables manufactured specifically for use by distribution and generation utility industry sectors. These single core cables are designed for primary power distribution, connecting sub-mains to local networks where the final connection occurs. They form the foundation of electricity supply from distribution mains worldwide.
英國標準BS7870-4.10規定了專為配電和發電公用事業行業設計的中壓（MV）聚合物絕緣電纜的要求。這些單芯電纜設計用於一次配電，將分幹線連接到最終連接發生的本地網絡。它們構成了全球配電幹線供電的基礎。
BS7870 Part 4, Section 4.10 covers single core cables for distribution utilities with extruded insulation rated up to and including 11kV and 33kV. The 11kV cables are often supplied and installed in triplex formation. These cables can be installed either by direct burial in the ground or in buried cable ducts, but are not suitable for overhead transmission supply.
BS7870第4部分第4.10節涵蓋了額定電壓高達11kV和33kV的擠壓絕緣配電公用事業單芯電纜。11kV電纜通常以三芯絞合形式供應和安裝。這些電纜可以直接埋地或在埋地電纜導管中安裝，但不適用於架空輸電。
BS7870-4.10 Cable Construction BS7870-4.10 電纜結構
Construction Layers 結構層
| Component組件 | Material Specification材料規格 |
|---|---|
| Conductor | 導體 | Class 2 stranded plain annealed copper or aluminium; Class 1 solid aluminium | 2類絞合退火銅或鋁；1類實心鋁 |
| Conductor Screen | 導體屏蔽 | Extruded semi-conducting compound | 擠壓半導電化合物 |
| Insulation | 絕緣 | XLPE (Cross-linked Polyethylene) DIX 3 or EPR (Ethylene Propylene Rubber) DIE 5 per BS7870-1 Annex B | 交聯聚乙烯或乙丙橡膠 |
| Insulation Screen | 絕緣屏蔽 | Cross-linked semi-conducting compound | 交聯半導電化合物 |
| Metallic Screen | 金屬屏蔽 | Copper wires (number and diameter based on earth fault rating); optional copper equalising tapes | 銅絲（數量和直徑根據接地故障額定值） |
| Water Blocking (Optional) | 防水（可選） | Water swellable powders or tapes for conductor and longitudinal waterblocking | 導體和縱向防水用吸水膨脹粉或帶 |
| Outer Sheath | 外護套 | Type A: MDPE (DMP 5) per BS7870-1 Annex B; Type B: LSZH (DMZ 4) per BS7870-1 Annex B | 中密度聚乙烯或低煙無鹵 |
Sheath Colour by Voltage Rating 按電壓等級的護套顏色
DNO Bespoke Specifications | DNO定制規格
Distribution Network Operators (DNOs) who operate the UK electricity distribution system have their own cables manufactured generally in accordance with BS7870-4.10, but the metallic screen cross-sectional area and material thicknesses are often bespoke to their specific requirements. This ensures optimal performance for their particular network configurations and fault current ratings.
運營英國電力配電系統的配電網絡運營商（DNO）通常按照BS7870-4.10製造自己的電纜，但金屬屏蔽截面積和材料厚度通常是根據其特定要求定制的。這確保了其特定網絡配置和故障電流額定值的最佳性能。
Conductor Options 導體選項
Copper Conductor Cables
Class 2 Stranded: Plain annealed copper, circular or shaped stranding
CSA Range: 50mm² to 1200mm²
Advantages: Higher conductivity, better fault current capacity, smaller diameter
銅導體電纜：2類絞合退火銅，圓形或成型絞合。截面積範圍：50mm²至1200mm²。優點：導電率更高，故障電流容量更大，直徑更小。
Aluminium Conductor Cables
Class 2 Stranded: Stranded aluminium alloy conductor (SAC)
Class 1 Solid: Solid aluminium conductor option
CSA Range: 70mm² to 1200mm²
Advantages: Lighter weight, lower cost, easier handling
鋁導體電纜：2類絞合鋁合金導體（SAC）或1類實心鋁導體。截面積範圍：70mm²至1200mm²。優點：重量更輕，成本更低，更易處理。
Common Conductor Sizes 常用導體規格
6.35/11kV Cable Specifications 6.35/11kV 電纜規格
Aluminium Conductor – 11kV MDPE 鋁導體 – 11kV MDPE
| CSA (mm²)截面積 | Conductor Class導體類別 | Insulation (mm)絕緣厚度 | Screen (mm²)屏蔽截面 | OD (mm)外徑 | Weight (kg/km)重量 |
|---|---|---|---|---|---|
| 70 | Class 2 | 3.4 | 16 | 24.5 | 650 |
| 95 | Class 2 | 3.4 | 16 | 26.0 | 720 |
| 150 | Class 2 | 3.4 | 16 | 29.0 | 890 |
| 185 | Class 2 | 3.4 | 16 | 31.0 | 1000 |
| 240 | Class 2 | 3.4 | 16 | 33.5 | 1150 |
| 300 | Class 2 | 3.4 | 16 | 36.0 | 1320 |
| 400 | Class 2 | 3.4 | 25 | 40.0 | 1600 |
| 500 | Class 2 | 3.4 | 25 | 43.5 | 1900 |
| 630 | Class 2 | 3.4 | 35 | 48.0 | 2300 |
Copper Conductor – 11kV MDPE 銅導體 – 11kV MDPE
| CSA (mm²)截面積 | Conductor Class導體類別 | Insulation (mm)絕緣厚度 | Screen (mm²)屏蔽截面 | OD (mm)外徑 | Weight (kg/km)重量 |
|---|---|---|---|---|---|
| 50 | Class 2 | 3.4 | 16 | 23.0 | 950 |
| 70 | Class 2 | 3.4 | 16 | 24.5 | 1150 |
| 95 | Class 2 | 3.4 | 16 | 26.0 | 1400 |
| 120 | Class 2 | 3.4 | 16 | 28.0 | 1650 |
| 150 | Class 2 | 3.4 | 16 | 29.5 | 1900 |
| 185 | Class 2 | 3.4 | 16 | 31.5 | 2200 |
| 240 | Class 2 | 3.4 | 16 | 34.0 | 2700 |
| 300 | Class 2 | 3.4 | 25 | 37.0 | 3250 |
| 400 | Class 2 | 3.4 | 25 | 41.0 | 4100 |
| 630 | Class 2 | 3.4 | 35 | 49.0 | 6000 |
19/33kV Cable Specifications 19/33kV 電纜規格
Aluminium Conductor – 33kV MDPE 鋁導體 – 33kV MDPE
| CSA (mm²)截面積 | Conductor Class導體類別 | Insulation (mm)絕緣厚度 | Screen (mm²)屏蔽截面 | OD (mm)外徑 | Weight (kg/km)重量 |
|---|---|---|---|---|---|
| 70 | Class 2 | 8.0 | 25 | 36.0 | 1100 |
| 95 | Class 2 | 8.0 | 25 | 38.0 | 1250 |
| 150 | Class 2 | 8.0 | 25 | 41.5 | 1500 |
| 185 | Class 2 | 8.0 | 25 | 43.5 | 1700 |
| 240 | Class 2 | 8.0 | 35 | 47.0 | 2000 |
| 300 | Class 2 | 8.0 | 35 | 50.0 | 2300 |
| 400 | Class 2 | 8.0 | 50 | 54.5 | 2800 |
| 500 | Class 2 | 8.0 | 50 | 59.0 | 3300 |
| 630 | Class 2 | 8.0 | 70 | 64.0 | 4000 |
| 800 | Class 2 | 8.0 | 70 | 70.0 | 4800 |
| 1000 | Class 2 | 8.0 | 95 | 77.0 | 5800 |
| 1200 | Class 2 | 8.0 | 95 | 83.0 | 6800 |
Copper Conductor – 33kV MDPE 銅導體 – 33kV MDPE
| CSA (mm²)截面積 | Conductor Class導體類別 | Insulation (mm)絕緣厚度 | Screen (mm²)屏蔽截面 | OD (mm)外徑 | Weight (kg/km)重量 |
|---|---|---|---|---|---|
| 70 | Class 2 | 8.0 | 25 | 36.5 | 1650 |
| 95 | Class 2 | 8.0 | 25 | 38.5 | 1950 |
| 150 | Class 2 | 8.0 | 25 | 42.0 | 2550 |
| 185 | Class 2 | 8.0 | 25 | 44.0 | 2950 |
| 240 | Class 2 | 8.0 | 35 | 47.5 | 3600 |
| 300 | Class 2 | 8.0 | 35 | 50.5 | 4250 |
| 400 | Class 2 | 8.0 | 50 | 55.0 | 5350 |
| 500 | Class 2 | 8.0 | 50 | 60.0 | 6500 |
| 630 | Class 2 | 8.0 | 70 | 65.0 | 8000 |
| 800 | Class 2 | 8.0 | 70 | 72.0 | 9800 |
| 1000 | Class 2 | 8.0 | 95 | 79.0 | 12000 |
| 1200 | Class 2 | 8.0 | 95 | 85.0 | 14200 |
Electrical Characteristics 電氣特性
Conductor Resistance at 20°C 20°C導體電阻
| CSA (mm²)截面積 | Copper Max. (Ω/km)銅最大值 | Aluminium Max. (Ω/km)鋁最大值 |
|---|---|---|
| 50 | 0.387 | 0.641 |
| 70 | 0.268 | 0.443 |
| 95 | 0.193 | 0.320 |
| 120 | 0.153 | 0.253 |
| 150 | 0.124 | 0.206 |
| 185 | 0.0991 | 0.164 |
| 240 | 0.0754 | 0.125 |
| 300 | 0.0601 | 0.100 |
| 400 | 0.0470 | 0.0778 |
| 500 | 0.0366 | 0.0605 |
| 630 | 0.0283 | 0.0469 |
| 800 | 0.0221 | 0.0367 |
| 1000 | 0.0176 | 0.0291 |
| 1200 | 0.0151 | 0.0247 |
Current Carrying Capacity – 11kV 載流量 – 11kV
| CSA (mm²)截面積 | Copper (A)銅 | Aluminium (A)鋁 | ||
|---|---|---|---|---|
| In Ground直埋 | In Air空氣 | In Ground直埋 | In Air空氣 | |
| 70 | 215 | 245 | 165 | 190 |
| 95 | 255 | 295 | 200 | 230 |
| 150 | 320 | 380 | 250 | 295 |
| 185 | 360 | 430 | 280 | 335 |
| 240 | 420 | 510 | 330 | 400 |
| 300 | 470 | 580 | 370 | 455 |
| 400 | 545 | 685 | 430 | 540 |
| 500 | 615 | 785 | 485 | 620 |
| 630 | 705 | 915 | 555 | 720 |
Ratings based on trefoil formation, 15°C ground temperature, 25°C ambient air. | 額定值基於三芯絞合形式，15°C土壤溫度，25°C環境空氣溫度。
Current Carrying Capacity – 33kV 載流量 – 33kV
| CSA (mm²)截面積 | Copper (A)銅 | Aluminium (A)鋁 | ||
|---|---|---|---|---|
| In Ground直埋 | In Air空氣 | In Ground直埋 | In Air空氣 | |
| 70 | 200 | 225 | 155 | 175 |
| 95 | 235 | 270 | 185 | 210 |
| 150 | 295 | 345 | 230 | 270 |
| 185 | 330 | 395 | 260 | 310 |
| 240 | 385 | 465 | 305 | 365 |
| 300 | 430 | 530 | 340 | 415 |
| 400 | 500 | 625 | 395 | 495 |
| 500 | 565 | 720 | 445 | 570 |
| 630 | 645 | 840 | 510 | 660 |
| 800 | 725 | 960 | 575 | 760 |
| 1000 | 815 | 1100 | 645 | 870 |
| 1200 | 895 | 1230 | 710 | 975 |
Applicable Standards & Compliance 適用標準與合規性
Primary Standard 主要標準
BS 7870-4.10
單芯配電公用事業中壓電纜
International Equivalent 國際等效標準
IEC 60502-2
中壓電纜6kV至30kV
Three Core Cables 三芯電纜
BS 7870-4.20
11kV三芯電纜
Conductor Standard 導體標準
BS EN 60228
電纜導體 – Class 1 & 2
Insulation Type A 絕緣類型A
XLPE (DIX 3) per BS7870-1 Annex B
交聯聚乙烯絕緣
Insulation Type B 絕緣類型B
EPR (DIE 5) per BS7870-1 Annex B
乙丙橡膠絕緣
Sheath Type A 護套類型A
MDPE (DMP 5) per BS7870-1 Annex B
中密度聚乙烯護套
Sheath Type B 護套類型B
LSZH (DMZ 4) per BS7870-1 Annex B
低煙無鹵護套
LSZH Type B Cable Fire Performance | LSZH B型電纜消防性能
Type B cables with LSZH (Low Smoke Zero Halogen) sheath additionally comply with flame propagation standards BS EN 60332-1-2 (single cable) and BS EN IEC 60332-3-24 (multiple cables). These cables are preferred for installations in tunnels, underground stations, and enclosed spaces where smoke emission and toxic gas generation must be minimized.
採用LSZH（低煙無鹵）護套的B型電纜還符合阻燃標準BS EN 60332-1-2（單根電纜）和BS EN IEC 60332-3-24（多根電纜）。這些電纜適用於隧道、地鐵站和封閉空間等需要最大限度減少煙霧排放和有毒氣體產生的安裝場所。
Applications & Installation 應用與安裝
Primary Distribution 一次配電
Connection of sub-mains to local distribution networks from main substations.
從主變電站將分幹線連接到本地配電網絡。
Utility Networks 公用事業網絡
DNO distribution systems, national grid connections, contestable works.
DNO配電系統、國家電網連接、可競標工程。
Industrial Power 工業電力
Private MV networks, large industrial and commercial load supplies.
私人中壓網絡、大型工業和商業負載供電。
Renewable Energy 可再生能源
Wind farm collector cables, solar farm MV connections, grid interface.
風電場集電電纜、太陽能電場中壓連接、電網接口。
Infrastructure 基礎設施
Airports, railways, tunnels, highways, ports, and data centres.
機場、鐵路、隧道、高速公路、港口和數據中心。
Generation Plants 發電廠
Power station auxiliary supplies, generator connections, switchgear feeds.
發電站輔助供電、發電機連接、開關櫃饋電。
Installation Methods 安裝方式
Installation Note | 安裝注意事項
BS7870-4.10 cables are designed for underground installation only. They are not suitable for overhead transmission supply. For aerial applications, please refer to overhead line conductors or aerial bundled cables (ABC). Installation should comply with BS7671 and local DNO requirements.
BS7870-4.10電纜僅設計用於地下安裝。它們不適用於架空輸電。對於架空應用，請參閱架空線路導體或架空束絞電纜（ABC）。安裝應符合BS7671和當地DNO要求。
Why Choose Anhui Feichun Special Cable 為什麼選擇安徽飞纯特种电缆
Anhui Feichun Special Cable Co., Ltd. is a professional manufacturer of medium voltage distribution cables, XLPE power cables, and utility-grade MV cables compliant with BS7870-4.10 and international standards. Our technical team provides comprehensive support for cable selection, voltage rating specification, and project-specific compliance requirements.
安徽飞纯特种电缆有限公司是專業的中壓配電電纜、XLPE電力電纜和公用事業級中壓電纜製造商，符合BS7870-4.10和國際標準。我們的技術團隊為電纜選擇、電壓等級規格和項目特定合規要求提供全面支持。
MV Cable Expertise 中壓電纜專長
Extensive experience supplying medium voltage distribution cables for utility and industrial projects.
為公用事業和工業項目供應中壓配電電纜的豐富經驗。
Full Voltage Range 完整電壓範圍
11kV, 22kV, and 33kV cables with copper or aluminium conductors.
11kV、22kV和33kV電纜，銅或鋁導體。
Quality Certification 質量認證
Products tested to BS7870-4.10, IEC 60502-2, and international MV cable standards.
產品經BS7870-4.10、IEC 60502-2和國際中壓電纜標準測試。
Technical Support 技術支持
Engineering consultation for cable sizing, screen sizing, and installation design.
電纜選型、屏蔽選型和安裝設計的工程諮詢。
Contact Our MV Cable Team | 聯繫我們的中壓電纜團隊
For expert advice on BS7870-4.10 medium voltage cables and utility distribution cable solutions, contact our engineers:
如需BS7870-4.10中壓電纜和公用事業配電電纜解決方案的專業建議，請聯繫我們的工程師：
📧 Email: [email protected] | [email protected] | [email protected]
💬 WhatsApp: +86 13855123218
References & Further Reading | 參考文獻與延伸閱讀
Industry Resources:
• Feichun Cable – Medium Voltage & Distribution Cable Solutions – Professional MV cable and XLPE power cable manufacturer
• Reeling Cable Solutions – Expertise in industrial and utility cables including medium voltage distribution cables for power networks and grid infrastructure
• Eland Cables – BS7870-4.10 Standard Reference – Technical specifications for medium voltage distribution cables
• Batt Cables – BS7870-4.10 MV Cable – Medium voltage polymeric insulated cable information
Note: BS7870-4.10 medium voltage cables are designed for utility distribution applications. Always consult qualified electrical engineers and current DNO specifications for project-specific requirements. Installation should comply with BS7671 and local distribution network operator guidelines.
備註：BS7870-4.10中壓電纜設計用於公用事業配電應用。請務必諮詢合格的電氣工程師和現行DNO規格以了解項目特定要求。安裝應符合BS7671和當地配電網絡運營商指南。
