What is Medium Voltage Cable?

(N)TSCGEWÖU cable, (N)TMCGEWÖU cable, (N)TSCGECECWÖU cable, (N)3GHSSHCH cable, (N)3GHSSYCY cable, N2XSY cable, N2XSH cable, NA2XSY cable, NA2XSH cable, N2XS2Y cable, N2XS(F)2Y cable, N2XS(FL)2Y cable, NA2XS2Y cable, NA2XS(F)2Y cable, NA2XS(FL)2Y cable, N2XSEY cable, NA2XSEY cable, N2XS(F)H cable, N2XS(FL)H cable, NA2XS(F)H cable, NA2XS(FL)H cable

A comprehensive technical guide to Medium Voltage (MV) power distribution cables covering voltage ratings from 3.3kV to 36kV. Understanding international standards including IEC 60502-2, BS6622, BS7835, DIN VDE 0276, HD620, and country-specific nomenclatures for German, British, Spanish, Portuguese, French, Dutch, Belgian, Austrian, and Swedish markets.
A comprehensive technical guide to Medium Voltage (MV) power distribution cables covering voltage ratings from 3.3kV to 36kV. Understanding international standards including IEC 60502-2, BS6622, BS7835, DIN VDE 0276, HD620, and country-specific nomenclatures for German, British, Spanish, Portuguese, French, Dutch, Belgian, Austrian, and Swedish markets.
Medium Voltage Cables | MV Cable 6kV-36kV Power Distribution | Anhui Feichun Special Cable Co., Ltd. 安徽飞纯特种电缆有限公司
Anhui Feichun Special Cable Co., Ltd. 安徽飞纯特种电缆有限公司

What is Medium Voltage Cable?

A comprehensive technical guide to Medium Voltage (MV) power distribution cables covering voltage ratings from 3.3kV to 36kV. Understanding international standards including IEC 60502-2, BS6622, BS7835, DIN VDE 0276, HD620, and country-specific nomenclatures for German, British, Spanish, Portuguese, French, Dutch, Belgian, Austrian, and Swedish markets.

English (Main) Español (Sudamérica) 繁體中文 (說明)
36kV
Max Voltage Rating
1000mm²
Max Conductor Size
9+
Country Standards
150+
Cable Models
CPR
Cca Compliant Options

Understanding Medium Voltage Cables

The backbone of power distribution networks worldwide

English

Medium Voltage cables represent a critical category in electrical power distribution, serving as the essential link between high voltage transmission systems and low voltage end-user installations. According to the International Electrotechnical Commission’s IEC 60050 vocabulary, Medium Voltage encompasses voltage levels lying between low and high voltage. However, the more practical definition commonly adopted by electrical engineers follows the IEEE standard, which defines Medium Voltage as the range between 1kV and 35kV, with some classifications extending up to 69kV.

These cables are engineered for underground and overhead power distribution in utility networks, industrial facilities, commercial buildings, renewable energy installations, and infrastructure projects. The construction of MV cables involves multiple specialized layers, each serving specific electrical, mechanical, or environmental protection functions. The selection of appropriate MV cables for any project requires careful consideration of performance requirements, installation demands, environmental challenges, and regulatory compliance including CPR (Construction Products Regulation) classifications where applicable.

The international nature of power infrastructure means that MV cables are specified using various national nomenclatures and standards. While the German DIN VDE nomenclature (such as N2XSY, NA2XSH) has become widely recognized across Europe, British Standards (BS6622, BS7835, BS7870), French (NF C 33-226), Spanish (RHZ1), Portuguese (XHIOE, LXHIOV), and other national specifications remain essential for projects in their respective regions.

Español (Sudamérica)

Los cables de Media Tensión representan una categoría crítica en la distribución de energía eléctrica, sirviendo como el enlace esencial entre los sistemas de transmisión de alta tensión y las instalaciones de baja tensión para usuarios finales. Según el vocabulario IEC 60050 de la Comisión Electrotécnica Internacional, la Media Tensión abarca niveles de voltaje entre baja y alta tensión. Sin embargo, la definición más práctica comúnmente adoptada por los ingenieros eléctricos sigue el estándar IEEE, que define la Media Tensión como el rango entre 1kV y 35kV, con algunas clasificaciones que se extienden hasta 69kV.

Estos cables están diseñados para la distribución de energía subterránea y aérea en redes de servicios públicos, instalaciones industriales, edificios comerciales, instalaciones de energía renovable y proyectos de infraestructura. La construcción de cables MT involucra múltiples capas especializadas, cada una sirviendo funciones específicas de protección eléctrica, mecánica o ambiental.

繁體中文 (說明)

中壓電纜是電力配電中的關鍵類別,作為高壓輸電系統與低壓終端用戶設施之間的重要連接。根據國際電工委員會的IEC 60050詞彙,中壓涵蓋低壓與高壓之間的電壓等級。然而,電氣工程師普遍採用的更實用定義遵循IEEE標準,將中壓定義為1kV至35kV之間的範圍,某些分類延伸至69kV。

這些電纜專為公用事業網絡、工業設施、商業建築、可再生能源裝置和基礎設施項目中的地下和架空配電而設計。中壓電纜的構造涉及多個專門層,每一層都服務於特定的電氣、機械或環境保護功能。為任何項目選擇合適的中壓電纜需要仔細考慮性能要求、安裝需求、環境挑戰以及包括適用的CPR(建築產品法規)分類在內的法規合規性。

電力基礎設施的國際性意味著中壓電纜使用各種國家命名法和標準進行規範。雖然德國DIN VDE命名法(如N2XSY、NA2XSH)在整個歐洲得到廣泛認可,但英國標準(BS6622、BS7835、BS7870)、法國標準(NF C 33-226)、西班牙標準(RHZ1)、葡萄牙標準(XHIOE、LXHIOV)和其他國家規範對於各自地區的項目仍然至關重要。

Medium Voltage Cable Construction

Construcción de cables de media tensión | 中壓電纜結構

Component LayerMaterial OptionsFunctionOptional/Required
ConductorCopper (Cu) Class 1/2 or Aluminium (Al) Class 1/2Current carrying element – solid, stranded circular, circular compacted, or sectorialRequired
Conductor WaterblockingSwellable powders or swellable yarnsPrevents longitudinal water migration in stranded intersticesOptional
Conductor ScreenSemi-conductive compoundSmooths electrical stress at conductor-insulation interfaceRequired
InsulationXLPE (Cross-linked Polyethylene) or EPR (Ethylene Propylene Rubber)Primary electrical insulation – determines voltage ratingRequired
Insulation ScreenSemi-conductive compoundControls electrical stress at insulation-screen interfaceRequired
Waterblocking (Longitudinal)Swellable powders or tapePrevents water propagation along cable lengthOptional
Metallic ScreenCopper wires and/or copper tapeFault current return path, EMC shieldingRequired
Inner SheathPVC or LSZH compoundMechanical protection layer under armourOptional (with armour)
ArmourSingle-core: Al wires/tape; Multi-core: Galvanised steel wires/tapeMechanical protection against impact and crushOptional
Waterblocking (Radial)Aluminium/PET tape bonded to sheathPrevents radial water ingressOptional
Outer SheathLDPE, MDPE, HDPE, PVC, LSZHEnvironmental protection – UV, oil, water, flame, termite resistanceRequired
CPR Compliance for Internal Installations

When MV cables are used in internal installations or terminated inside buildings, regulatory requirements such as CPR (Construction Products Regulation) compliance may impact the choice of construction and materials. CPR compliant MV cables are available sheathed in PVC and LSZH materials, achieving up to CPR Class Cca (s1b, d1, a1) and meeting relevant fire performance standards with third-party approvals. Geographic location may determine minimum CPR class requirements.

MV Cable Standards & International References

Normas y referencias internacionales de cables MT | 中壓電纜標準與國際參考

StandardDescriptionVoltage RangeCable References
IEC 60502-2Power cables with extruded insulation – 6kV to 30kV6/10kV to 18/30kVInternational
DIN VDE 0276-620German national standard for distribution cables 3.6kV to 20.8/36kV6/10kV to 18/30kVN2XSY, NA2XSH
BS6622Armoured cable with PVC outer sheath – British Standard3.8/6.6kV to 19/33kVBS6622 XLPE PVC
BS7835Armoured cable with LSZH outer sheath – British Standard3.8/6.6kV to 19/33kVBS7835 XLPE LSZH
BS7870-4.10Single core cables for distribution utilities6.35/11kV to 19/33kVBS7870 MDPE
HD620CENELEC harmonised document – extruded insulation cables3.6/6kV to 20.8/36kVMultiple
NF C 33-226French national standard for MV cables12/20kV to 18/30kVFR-N cables
Country-Specific Cable Nomenclatures

MV cables are specified using various national nomenclatures depending on project location and standards requirements. Our portfolio supports specifications for multiple regional markets with full technical documentation available.

🇬🇧 British MV
🇩🇪 German MV
🇪🇸 Spanish MV
🇵🇹 Portuguese MV
🇫🇷 French MV
🇳🇱 Dutch MV
🇧🇪 Belgian MV
🇦🇹 Austrian MV
🇸🇪 Swedish MV

German MV Cable Nomenclature — DIN VDE 0276

Nomenclatura alemana de cables MT | 德國中壓電纜命名法

Understanding German Cable References

German cable nomenclature is probably the most widely recognised across Europe for power distribution cables. The alpha-numeric references correlate to specific materials and properties of the cable, allowing specifiers to assess suitability at a glance. The ‘N’ prefix denotes an energy cable with Copper conductor as default. Where Aluminium is used instead, ‘A’ appears in the second position. For example, the combination NA2XS(FL)H indicates an Aluminium conductor cable with XLPE insulation, metallic screen, dual longitudinal and radial waterblocking, covered in a Low Smoke Zero Halogen sheath.

德國電纜命名法說明

德國電纜命名法可能是歐洲配電電纜中最廣泛認可的。字母數字參考與電纜的特定材料和屬性相關,允許規範制定者一目了然地評估適用性。’N’前綴表示以銅導體為默認的能源電纜。當使用鋁時,’A’出現在第二位置。例如,組合NA2XS(FL)H表示鋁導體電纜,具有XLPE絕緣、金屬屏蔽、雙縱向和徑向阻水,覆蓋低煙無鹵護套。

Conductor & Insulation

N Energy Cable to Standard (default Copper)
A Aluminium Conductor (2nd position)
2X XLPE (Cross-linked Polyethylene) Insulation

Screen & Waterblocking

S Metallic Screen (copper wires/tape)
E Individually Screened Cores (3-core)
(F) Longitudinal Water Tightness
(FL) Radial + Longitudinal Water Tightness

Armour

R Round Steel Wire Armour
(AL) Round Aluminium Wire Armour (Single Core)

Outer Sheath

Y PVC (Polyvinyl Chloride)
2Y PE (Polyethylene) – LDPE/MDPE/HDPE
H LSZH (Low Smoke Zero Halogen)

MV Cable Voltage Ratings & Test Voltages

Clasificaciones de voltaje y voltajes de prueba | 電壓等級與測試電壓

Voltage Rating Uo/U (Um)System VoltageTest Voltage (AC 50Hz, 5 min)Common Applications
3.6/6 (7.2) kV6.6kV15kV ACIndustrial plants, mining equipment
3.8/6.6 (7.2) kV6.6kV (UK)15kV ACUK distribution networks
6/10 (12) kV10kV / 11kV21kV ACPrimary distribution, substations
6.35/11 (12) kV11kV (UK)21kV ACUK DNO networks, wind farms
8.7/15 (17.5) kV15kV35kV ACIndustrial feeders, renewable energy
12/20 (24) kV20kV / 22kV42kV ACMain distribution networks
12.7/22 (24) kV22kV (UK)42kV ACUK primary substations
18/30 (36) kV30kV / 33kV63kV ACSub-transmission, large industrial
19/33 (36) kV33kV (UK)63kV ACUK 33kV networks, grid connection

MV Cable Conductor Size Ranges

Rangos de tamaños de conductores | 導體尺寸範圍

Cable ConfigurationVoltage RatingSize Range (Cu)Size Range (Al)
Single Core6/10 (12) kV35mm² to 500mm²50mm² to 630mm²
3-Core6/10 (12) kV35mm² to 240mm²35mm² to 300mm²
Single Core6.35/11 (12) kV50mm² to 1000mm²70mm² to 1000mm²
3-Core6.35/11 (12) kV35mm² to 400mm²50mm² to 400mm²
Single Core12/20 (24) kV50mm² to 500mm²70mm² to 630mm²
3-Core12/20 (24) kV35mm² to 630mm²50mm² to 630mm²
Single Core12.7/22 (24) kV50mm² to 630mm²70mm² to 630mm²
3-Core12.7/22 (24) kV50mm² to 500mm²70mm² to 500mm²
Single Core18/30 (36) kV50mm² to 500mm²70mm² to 630mm²
Single Core19/33 (36) kV70mm² to 1000mm²95mm² to 1000mm²
3-Core19/33 (36) kV50mm² to 400mm²70mm² to 400mm²

MV Cable Models — Technical Specifications

Modelos de cables MT — Especificaciones técnicas | 中壓電纜型號技術規格

N2XSY / N2XSH German
  • StandardIEC 60502-2 / DIN VDE 0276
  • Voltage6/10kV to 18/30kV
  • ConductorCopper Class 2
  • InsulationXLPE
  • ScreenCopper wire + tape
  • Sheath (Y)PVC
  • Sheath (H)LSZH
  • WaterblockingNone (standard)
N2XS(F)2Y / N2XS(FL)2Y German
  • StandardHD620 10C / IEC 60502-2
  • Voltage6/10kV to 18/30kV
  • ConductorCopper Class 2
  • InsulationXLPE
  • ScreenCopper wire + tape
  • Waterblock (F)Longitudinal
  • Waterblock (FL)Radial + Longitudinal
  • SheathMDPE / HDPE
NA2XSY / NA2XSH German Al
  • StandardIEC 60502-2 / DIN VDE 0276
  • Voltage6/10kV to 18/30kV
  • ConductorAluminium Class 2
  • InsulationXLPE
  • ScreenCopper wire + tape
  • Sheath (Y)PVC
  • Sheath (H)LSZH
  • Weight~40% lighter than Cu
BS6622 XLPE PVC British
  • StandardBS 6622
  • Voltage3.8/6.6kV to 19/33kV
  • ConductorCu/Al Class 2
  • InsulationXLPE
  • Armour (1C)AWA (Aluminium Wire)
  • Armour (3C)SWA (Steel Wire)
  • SheathPVC Black
  • ApplicationUK DNO networks
BS7835 XLPE LSZH British LSZH
  • StandardBS 7835
  • Voltage3.8/6.6kV to 19/33kV
  • ConductorCu/Al Class 2
  • InsulationXLPE
  • Armour (1C)AWA
  • Armour (3C)SWA
  • SheathLSZH
  • Fire RatingEN 60332-3 Cat C
BS7870-4.10 British DNO
  • StandardBS 7870-4.10
  • Voltage6.35/11kV to 19/33kV
  • ConductorCu/Al Class 2
  • InsulationXLPE
  • ScreenCopper wire concentric
  • SheathMDPE / LSZH
  • ConfigurationSingle Core
  • ApplicationDistribution utilities
RHZ1-OL / RHZ1-2OL Spanish
  • StandardHD620 10E / IEC 60502-2
  • Voltage12/20kV to 18/30kV
  • ConductorCu/Al Class 2
  • InsulationXLPE (R)
  • ScreenAl tape (H5)
  • Waterblock (OL)Insulation screen only
  • Waterblock (2OL)Conductor + insulation
  • SheathPolyolefin Z1 / LSZH
LXHIOE / XHIOE Portuguese
  • StandardHD620 10L / IEC 60502-2
  • Voltage6/10kV to 18/30kV
  • Conductor (LX)Aluminium
  • Conductor (X)Copper
  • Screen (HIO)Copper Wires
  • InsulationXLPE
  • Sheath (E)Polyethylene
  • CPR OptionsEca / Cca available
NF C 33-226 French
  • StandardNF C 33-226
  • Voltage12/20kV to 18/30kV
  • ConductorCu/Al Class 2 (-R/-AR)
  • InsulationXLPE
  • ScreenA8 (Aluminium)
  • SheathMDPE / LSZH (Z1)
  • ConfigurationSingle core / Triplex
  • CPR (Z1)Cca available
E-2XHC2Y / E-A2XHC2Y Austrian
  • StandardHD620 10A / IEC 60502-2
  • Voltage6/10kV to 18/30kV
  • Conductor (E)Copper (default)
  • Conductor (A)Aluminium
  • Insulation (2X)XLPE
  • Screen (H)Metallic
  • Waterblock (C)Radial + Longitudinal
  • Sheath (2Y)PE
YMz1Krvasdlwd Dutch
  • StandardNEN-HD620 10J / IEC 60502-2
  • Voltage8.7/15kV to 18/30kV
  • ConductorCu / Al (-AL suffix)
  • Insulation (Y)XLPE
  • Sheath (Mz1K)LSZH
  • Screen (as)Earth screen
  • Waterblock (dlwd)Radial + Longitudinal
  • Field (rv)Radial field
FXLJ-F / AXLJ-F Swedish
  • StandardSS 424 17 01 / IEC 60502-2
  • Voltage12/20kV to 18/30kV
  • Conductor (F)Cu stranded Class 2
  • Conductor (A)Aluminium
  • Insulation (X)XLPE
  • Screen (L)Al tape + Cu wire
  • Application (J)For laying in ground
  • Waterblock (-TT)Radial + Longitudinal

Industry Resources & Standards Organizations

Recursos de la industria y organizaciones de normas | 行業資源與標準組織

Request Technical Support & Quotation

Solicitar soporte técnico y cotización | 請求技術支援與報價

Contact Our MV Cable Specialists

As a comprehensive Medium Voltage cable supplier, we support specifications in all voltage ratings and across all international nomenclatures. Our technical team can assist with navigating standards requirements, construction options, and compliance including CPR classifications for internal installations. Whether you’re working on projects in Europe, South America, Asia, or elsewhere, we can provide technical datasheets, cross-reference support for different national standards, and quotations against your project timelines.

MV cables are available in specific lengths as well as extended long lengths to reduce joints. Accompanying cable accessories with calibrated sizing can also be provided.

Technical Inquiries: [email protected]
Sales (Zihao Yang): [email protected]
Sales (Ziyu Huang): [email protected]
WhatsApp: +86 138 5512 3218

Contacte a Nuestros Especialistas en Cables MT

Como proveedor integral de cables de Media Tensión, apoyamos especificaciones en todas las clasificaciones de voltaje y en todas las nomenclaturas internacionales. Nuestro equipo técnico puede ayudar a navegar los requisitos de normas, opciones de construcción y cumplimiento, incluyendo clasificaciones CPR para instalaciones internas. Ya sea que esté trabajando en proyectos en Europa, Sudamérica, Asia u otras regiones, podemos proporcionar hojas de datos técnicos, soporte de referencias cruzadas para diferentes normas nacionales y cotizaciones según los plazos de su proyecto.

聯繫我們的中壓電纜專家

作為全面的中壓電纜供應商,我們支持所有電壓等級和所有國際命名法的規格。我們的技術團隊可以協助瀏覽標準要求、構造選項和合規性,包括內部安裝的CPR分類。無論您在歐洲、南美、亞洲還是其他地區進行項目,我們都可以提供技術數據表、不同國家標準的交叉參考支持以及根據您的項目時間表提供報價。

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