Shielding is one of the most critical structural elements in medium and high voltage mining cables, performing multiple vital functions that extend far beyond electromagnetic interference (EMI) protection. According to the U.S. Mine Safety and Health Administration (MSHA) regulations and IEC 60502 standards, shielding forms the first line of defense against ground faults, current leakage, and electromagnetic interference in harsh industrial environments. The letter "C" in German cable designations (such as NTSCGEWÖU) indicates the presence of a copper wire braided screen, while "CY" refers to compact copper shielding that provides 85% to 95% surface coverage, ensuring maximum protection in critical applications. In mining environments where equipment operates with variable frequency drives (VFDs), high-power motors, and sensitive monitoring systems, proper shielding is essential for both electrical safety and operational reliability. The IEEE 1580 standard for marine cables and ICEA S-75-381 for mining cables both specify detailed requirements for shielding construction and performance.

on16/01/2026

ما وظيفة التدريع في كابلات التعدين ومتى يكون تدريع CY ضرورياً؟

mining cable shielding, CY shielding, copper wire braid screen, EMI protection, MSHA cable, IEC 60502, DIN VDE 0250, ground fault protection, semiconductive layer, partial discharge, underground mining cable, trailing cable, VFD cable shielded, كابلات التعدين المدرعة, 礦用電纜屏蔽, electromagnetic interference, NTSCGEWÖU, NTMCGEWÖU, shield grounding

PROTOMONT(Z) NSSHKCGEOEU 0.6/1KV is a coal cutter cable designed for free trailing operations in underground mining applications, used as power supply connection cable for mobile equipment such as coal shearers, roadheaders, TBMs, or scoops (LHDs). The (Z) Coal-Cutter cables are specifically designed for free trailing operation and, due to their special galvanized steel wire braiding construction, may be trailed for considerable distances behind the machine during operation. Features very finely stranded tinned copper conductors (Class FS), EPR rubber insulation (PROTOLON 3GI3), galvanized steel wire braiding armour, and polychloroprene (PCP) outer sheath (PROTOFIRM 5GM5). Offers up to 36,000N tensile strength and 150m/min travel speed. Certified by MSHA P-189-4, EAC, and Bosnia-Herzegovina BAS.

Technical Department

on14/01/2026

كابل PROTOMONT(Z) NSSHKCGEOEU 0,6/1KVكابلات قاطعات الفحم لعمليات السحب الحر – التعدين تحت الأرض

PROTOMONT(Z) NSSHKCGEOEU 0.6/1KV 是專為地下採礦作業中的自由拖曳操作設計的採煤機電纜，用於連接採煤機、掘進機、隧道掘進機(TBM)或鏟運機(LHD)等移動設備。(Z)型採煤機電纜專為自由拖曳操作設計，由於其特殊的鍍鋅鋼絲編織結構，可在設備後方拖曳相當長的距離。該電纜採用極細絞鍍錫銅導體（FS類）、EPR橡膠絕緣（PROTOLON 3GI3）、鍍鋅鋼絲編織鎧裝、氯丁橡膠外護套（PROTOFIRM 5GM5）。具有高達36,000N的拉伸強度和150m/min的移動速度。獲得MSHA P-189-4、EAC及波黑BAS等國際認證。