电缆型号中带括号的”(N)”与不带括号的”N”有什么区别？如(N)TSCGEWÖU与NTSCGEWÖU的标识含义
What Does the Letter “(N)” in Brackets Signify in Cables Like (N)TSCGEWÖU Compared to Cables Without Brackets “N”?
电缆型号中带括号的”(N)”与不带括号的”N”有什么区别？如(N)TSCGEWÖU与NTSCGEWÖU的标识含义
Anhui Feichun Special Cable Co., Ltd. 安徽飞纯特种电缆有限公司
1. Introduction: Understanding Cable Designation Systems 引言：理解电缆标识系统
In the international cable industry, the letter “N” at the beginning of a cable designation carries significant technical and regulatory meaning. However, many engineers encounter confusion when comparing cables marked with N (without brackets) versus (N) (with brackets). This distinction is fundamental to understanding whether a cable is manufactured to German national standards or European harmonised standards. 在国际电缆行业中，电缆型号开头的字母”N”具有重要的技术和法规含义。然而，许多工程师在比较标有N（不带括号）和(N)（带括号）的电缆时会感到困惑。这种区别对于理解电缆是按照德国国家标准还是欧洲协调标准制造的至关重要。
This guide provides a comprehensive explanation of the (N) bracket notation as defined in DIN VDE 0292 (the German cable designation system) and CENELEC harmonisation documents, with specific reference to medium voltage reeling cables such as (N)TSCGEWÖU used in mining, crane, and material handling applications. 本指南根据DIN VDE 0292（德国电缆标识系统）和CENELEC协调文件的定义，全面解释(N)括号标记的含义，并特别参考用于采矿、起重机和物料搬运应用的中压卷筒电缆，如(N)TSCGEWÖU。
2. The Core Difference: N vs (N) 核心区别：N与(N)
N
Without Brackets
German VDE National Standard
德国VDE国家标准
Example: NTSCGEWÖU
(N)
With Brackets
European Harmonised Standard
欧洲协调标准
Example: (N)TSCGEWÖU
Key Definition: The letter “N” stands for Normenleitung in German, which translates to “Standard Cable.” When “N” appears without brackets, the cable is manufactured and tested strictly according to German VDE (Verband der Elektrotechnik) standards. When “(N)” appears in brackets, the cable is manufactured according to European Harmonised Standards (HD) while maintaining functional equivalence with VDE requirements. 关键定义：“N”代表德语”Normenleitung”，意为”标准电缆”。当”N”不带括号时，电缆严格按照德国VDE标准制造和测试。当”(N)”带括号时，电缆按照欧洲协调标准(HD)制造，同时保持与VDE要求的功能等效性。
2.1 Detailed Comparison 详细对比
| Aspect 方面 | N (Without Brackets) N（不带括号） | (N) (With Brackets) (N)（带括号） |
|---|---|---|
| Standard Framework | German DIN VDE national standards exclusively | European Harmonised Documents (HD) with VDE equivalence |
| Governing Body | VDE (Verband der Elektrotechnik, Germany) | CENELEC (European Committee for Electrotechnical Standardization) |
| Market Recognition | Germany, Austria, markets using VDE standards | All EU/EEA countries, broader international projects |
| Certification Mark | VDE mark only | HAR mark (Harmonised) + national equivalents |
| Primary Standard Example | DIN VDE 0250 (pure VDE) | HD 603, HD 620, HD 622 (harmonised) |
| Technical Performance | Identical electrical and mechanical specifications | Identical electrical and mechanical specifications |
| Interchangeability | Limited to VDE-accepting markets | Broader acceptance across Europe |
表格说明：从技术性能角度，N和(N)电缆在电气和机械规格上是相同的。主要区别在于认证框架和市场认可范围。(N)电缆在整个欧洲市场具有更广泛的接受度。
3. Technical Background: The Standardisation Framework 技术背景：标准化框架
3.1 German National Standards (VDE) 德国国家标准（VDE）
The German Institute for Standardization (DIN) and the Association for Electrical, Electronic and Information Technologies (VDE) jointly develop the DIN VDE standards series. For cable designation, DIN VDE 0292 establishes the type designation code system used throughout German-speaking countries. 德国标准化学会（DIN）和电气、电子与信息技术协会（VDE）共同制定DIN VDE标准系列。对于电缆标识，DIN VDE 0292建立了在德语国家通用的型号标识代码系统。
Key VDE Cable Standards 关键VDE电缆标准
- DIN VDE 0292: System for cable designation (type codes) 电缆标识系统（型号代码）
- DIN VDE 0250: Cables, wires and flexible cords for power installations 电力安装用电缆、电线和软线
- DIN VDE 0276: Power cables with plastic insulation (Parts 603, 604, 620, 622, 626) 塑料绝缘电力电缆
- DIN VDE 0295: Conductor construction requirements 导体结构要求
- DIN VDE 0207: Insulation and sheath compounds 绝缘和护套材料
3.2 European Harmonised Standards (CENELEC) 欧洲协调标准（CENELEC）
CENELEC (the European Committee for Electrotechnical Standardization) has developed Harmonisation Documents (HDs) to facilitate cross-border trade and ensure cable compatibility across EU member states. When a cable is marked with (N), it indicates manufacture to these harmonised standards. CENELEC（欧洲电工标准化委员会）制定了协调文件（HD）以促进跨境贸易并确保电缆在欧盟成员国之间的兼容性。当电缆标有(N)时，表明其按照这些协调标准制造。
| Document 文件 | Scope 范围 | Voltage Rating 电压等级 |
|---|---|---|
| HD 603 | Distribution cables with plastic insulation | 0.6/1 kV |
| HD 620 | Distribution cables with extruded insulation | 3.6/6 kV to 20.8/36 kV |
| HD 622 | Distribution cables (medium voltage) | 6/10 kV to 18/30 kV |
| HD 361 | Cable designation system (harmonised) | All voltages |
| EN 50525 | Cables up to 450/750V (fully harmonised) | ≤450/750 V |
4. Practical Example: Decoding (N)TSCGEWÖU 实例解析：(N)TSCGEWÖU电缆代码详解
Let us decode the complete designation (N)TSCGEWÖU, a medium voltage flexible reeling cable manufactured according to DIN VDE 0250 Part 813 and HD 620: 让我们详细解析(N)TSCGEWÖU这一中压柔性卷筒电缆的完整标识，该电缆按照DIN VDE 0250第813部分和HD 620制造：
| Symbol 符号 | Meaning (English) 含义（英文） | Meaning (Chinese) 含义（中文） |
|---|---|---|
| (N) | European Harmonised Standard equivalent (Normenleitung) | 欧洲协调标准等效（标准电缆） |
| T | Trailing cable / Reeling cable (Trommelleitung) | 拖曳电缆/卷筒电缆 |
| S | Heavy-duty construction (Schwer) | 重型结构 |
| C | Concentric copper screen/conductor | 同心铜屏蔽/导体 |
| G | Flexible construction / Rubber compound (Gummi) | 柔性结构/橡胶化合物 |
| E | Earth conductor present (Erdungsleiter) | 带接地导体 |
| W | Weather resistant / Outdoor suitable (Wetterfest) | 耐候/适合户外 |
| Ö | Oil resistant (Ölbeständig) | 耐油 |
| U | Suitable for outdoor use (Umgebung) | 适合户外环境 |
4.1 Comparing N vs (N) in This Context 此上下文中N与(N)的比较
| Designation 标识 | Primary Standard 主要标准 | Market Applicability 市场适用性 |
|---|---|---|
| NTSCGEWÖU | DIN VDE 0250 Part 813 (German national) | Germany, Austria, Swiss German-speaking regions |
| (N)TSCGEWÖU | HD 620 S2 / VDE 0250 p.813 (harmonised) | All EU/EEA countries, international projects |
从技术角度，两种电缆在物理构造和电气性能上是相同的。(N)版本提供更广泛的国际认可和合规性。
5. Other Common Examples: NYY vs (N)YY 其他常见示例：NYY与(N)YY
The same principle applies to other common cable types. The NYY cable (one of the most widely used industrial power cables in Europe) demonstrates this distinction clearly: 同样的原则适用于其他常见电缆类型。NYY电缆（欧洲最广泛使用的工业电力电缆之一）清楚地展示了这种区别：
| Designation 标识 | Standard 标准 | Description 说明 |
|---|---|---|
| NYY | DIN VDE 0276-603 | German VDE national standard; PVC insulated, PVC sheathed power cable |
| (N)YY | HD 603 | European harmonised standard; functionally equivalent to NYY |
| YY | HD 603 (N omitted) | Harmonised standard only; no VDE national reference |
| NYY-J | DIN VDE 0276-627 | With protective earth conductor (J = mit Schutzleiter) |
| NYY-O | DIN VDE 0276-627 | Without protective earth conductor (O = Ohne Schutzleiter) |
Important Note: When the “N” is completely omitted (e.g., “YY” instead of “NYY” or “(N)YY”), this indicates the cable is manufactured purely to harmonised European standards without specific reference to German VDE national implementation. 重要说明：当”N”完全省略时（例如用”YY”代替”NYY”或”(N)YY”），这表明电缆完全按照欧洲协调标准制造，没有特别参考德国VDE国家实施。
6. Additional VDE Cable Designation Codes 其他VDE电缆标识代码
Understanding the complete VDE designation system helps engineers accurately specify cables. The following table provides common code elements: 理解完整的VDE标识系统有助于工程师准确指定电缆。下表提供了常见的代码元素：
| Position 位置 | Code 代码 | Meaning 含义 |
|---|---|---|
| First Letter (Standard) | N | VDE national standard cable (Normenleitung) |
| (N) | Harmonised standard with VDE equivalence | |
| H | Harmonised cable (HAR approved) | |
| Conductor Material | — (none) | Copper conductor (default) |
| A | Aluminium conductor | |
| 2 | Aluminium (alternative notation) | |
| Insulation Material | Y | PVC (Polyvinyl Chloride) |
| 2X | XLPE (Cross-linked Polyethylene) | |
| G | Rubber / Elastomer (Gummi) | |
| HX | Halogen-free, cross-linked | |
| Sheath/Protection | Y | PVC outer sheath |
| R | Steel wire armour (Round) | |
| F | Steel wire armour (Flat) | |
| Special Features | Ö | Oil resistant (Ölbeständig) |
| U | Outdoor / UV resistant (Umgebung) | |
| W | Weather resistant (Wetterfest) |
7. Practical Implications for Engineers 工程师的实践指导
7.1 When to Specify N vs (N) 何时指定N与(N)
Use “N” (Without Brackets) When: 使用”N”（不带括号）的情况：
- Project is exclusively within Germany or Austria
- Contract specifies strict VDE compliance
- Local regulations require German national certification
- Existing installation uses VDE-marked cables throughout
Use “(N)” (With Brackets) When: 使用”(N)”（带括号）的情况：
- Project spans multiple EU/EEA countries
- International tender with European harmonisation requirements
- Maximum flexibility in sourcing from different manufacturers
- Future expansion into broader European markets anticipated
- HD or EN standard compliance is contractually required
7.2 Technical Equivalence Statement 技术等效性声明
From a purely technical perspective, cables designated with N and (N) are functionally identical. The construction materials, dimensional tolerances, electrical parameters, and mechanical performance requirements are the same. The distinction is purely regulatory and relates to the certification pathway. 从纯技术角度看，标有N和(N)的电缆在功能上是相同的。构造材料、尺寸公差、电气参数和机械性能要求都是相同的。区别纯粹是法规性的，与认证途径有关。
8. Application Areas for (N)TSCGEWÖU and Similar Cables (N)TSCGEWÖU及类似电缆的应用领域
| Industry 行业 | Equipment 设备 | Typical Voltage 典型电压 |
|---|---|---|
| Open-Cast Mining | Excavators, dumpers, mobile crushers, bucket-wheel excavators | 3.6/6 kV – 18/30 kV |
| Port & Terminal | Ship-to-shore cranes, RTG cranes, automated stacking cranes | 6/10 kV – 12/20 kV |
| Underground Mining | Tunnel boring machines, longwall shearers, shuttle cars | 3.6/6 kV – 12/20 kV |
| Shipyards | Gantry cranes, mobile platform cranes | 6/10 kV – 12/20 kV |
| Steel Industry | Ladle cranes, charging machines, EOT cranes | 3.6/6 kV – 6/10 kV |
9. Summary 总结
Key Takeaways:
- N (without brackets): Cable manufactured to German VDE national standards exclusively. 按德国VDE国家标准制造的电缆。
- (N) (with brackets): Cable manufactured to European Harmonised Standards (HD) with functional equivalence to VDE. 按欧洲协调标准(HD)制造，与VDE功能等效的电缆。
- Technical performance: Identical between N and (N) variants. N和(N)版本的技术性能相同。
- Market acceptance: (N) cables have broader international recognition. (N)电缆具有更广泛的国际认可。
- Omitted N: When N is completely absent, cable follows harmonised standards without VDE national reference. 当N完全省略时，电缆遵循协调标准，不参考VDE国家标准。
References and External Resources 参考文献和外部资源
- DIN VDE 0292:2021-08 “System for cable designation; German version HD 361 S4:2020” VDE Verlag
- DIN VDE 0250 Part 812/813/814 “Cables, wires and flexible cords for power installation” Tratos Group Reference
- CENELEC HD 603 “Distribution cables of rated voltage 0,6/1 kV” CENELEC BOSS
- CENELEC HD 620 S2 “Distribution cables of rated voltage 3,6/6 kV to 20,8/36 kV”
- Top Cable. “The differences between NYY, (N)YY, NYY-J, NYY-O cables.” topcable.com
- Eland Cables. “FAQ: What do cable designations mean?” elandcables.com
- Eland Cables. “European Harmonised HAR Cable.” elandcables.com
- Bayka (Bayerische Kabelwerke AG). “Type Designation Codes.” bayka.de
- Prysmian Group. “Protolon Cable (N)TSCGEWOEU.” powerandcables.com
- Feichun Special Cable. “What is DIN VDE 0250 Reeling Cables?” feichuncables.com
- Feichun Port and Maritime Cables. “Understanding Cable Standards: IEC vs. DIN VDE vs. BS EN.” cranecable.com.au
Contact Anhui Feichun Special Cable Co., Ltd. 联系安徽飞纯特种电缆有限公司
For technical enquiries regarding VDE standard cables, reeling cables, mining cables, and crane cables, please contact our engineering team: 如需有关VDE标准电缆、卷筒电缆、矿用电缆和起重机电缆的技术咨询，请联系我们的工程团队：
![The German DIN VDE cable designation system provides engineers and procurement specialists with a comprehensive coding methodology that communicates essential cable characteristics through standardized letter and number sequences. Within this system, the symbol Ö (pronounced "Oe" in romanized form) represents one of the most critical performance indicators for cables deployed in demanding industrial applications.[1][2] 德国DIN VDE电缆标识系统为工程师和采购专家提供了一套全面的编码方法，通过标准化的字母和数字序列传达电缆的基本特性。在该系统中，符号"Ö"（罗马化读作"Oe"）代表在苛刻工业应用中部署的电缆最关键的性能指标之一。](https://feichuncables.com/blog/wp-content/uploads/image-553-400x225.avif "What is the Meaning of the Symbol \"Ö\" (or \"Oe\") in VDE Cable Codes, and Why is it Critical for Industrial Environments? 3")
