In the design of medium voltage mining and reeling cables such as the (N)TSCGECEWÖU, the short-circuit temperature rating of the insulation material fundamentally determines the cable's fault current withstand capability. The 3GI3 EPR (Ethylene Propylene Rubber) compound specified in DIN VDE 0207 Part 20 has a maximum permissible short-circuit temperature of 250°C, which directly influences how engineers must size the metallic screen to safely conduct earth fault currents without thermal damage. 在设计诸如(N)TSCGECEWÖU等中压矿用和卷筒电缆时，绝缘材料的短路温度额定值从根本上决定了电缆的故障电流承受能力。DIN VDE 0207第20部分规定的3GI3 EPR（乙丙橡胶）化合物的最大允许短路温度为250°C，这直接影响工程师必须如何确定金属屏蔽层的尺寸，以安全传导接地故障电流而不会造成热损坏。

on23/01/2026

Short-Circuit Rating: Why is the Short-Circuit Temperature for 3GI3 EPR-Insulated VDE Cables Set at 250°C, and How Does This Impact Screen Sizing for (N)TSCGECEWÖU?

In the design of medium voltage mining and reeling cables such as the (N)TSCGECEWÖU, the short-circuit temperature rating of the insulation material fundamentally determines the cable’s fault current withstand capability. The 3GI3 EPR (Ethylene Propylene Rubber) compound specified in DIN VDE 0207 Part 20 has a maximum permissible short-circuit temperature of 250°C, which directly influences how engineers must size the metallic screen to safely conduct earth fault currents without thermal damage. 在设计诸如(N)TSCGECEWÖU等中压矿用和卷筒电缆时，绝缘材料的短路温度额定值从根本上决定了电缆的故障电流承受能力。DIN VDE 0207第20部分规定的3GI3 EPR（乙丙橡胶）化合物的最大允许短路温度为250°C，这直接影响工程师必须如何确定金属屏蔽层的尺寸，以安全传导接地故障电流而不会造成热损坏。

In the DIN VDE 0250-813 standard, the majority of reeling cables supplied are the standard (N)TSCGEWÖU, which utilizes 3 Earth Cores located in the interstices for grounding. However, for critical safety applications and high-fault-risk environments, the (N)TSCGECEWÖU variant is engineered with Individual Metallic Screens (Copper Braid) surrounding each phase core. You should select this cable when your safety protocols require individual phase earth-fault monitoring or when operating in environments where phase-to-phase short circuits must be mechanically prevented. 在 DIN VDE 0250-813 标准中，供应的大多数卷盘电缆是标准的 (N)TSCGEWÖU，它利用位于缝隙中的 3 根接地芯进行接地。然而，对于关键的安全应用和高故障风险环境，(N)TSCGECEWÖU 变体在设计上采用了环绕每个相芯的独立金属屏蔽（铜编织）。当您的安全协议要求进行独立分相接地故障监测，或者在必须机械防止相间短路的环境中操作时，您应该选择这种电缆。

Technical Department

on22/01/2026

When should you select (N)TSCGECEWÖU (with individual copper screens) instead of the standard common screen design?

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