摘要：【中文】本实用新型公开了一种煤矿用加强型超重型便携式电缆，包括三根动力线芯、一根接地检测线和两根接地导线，三根动力线芯呈三角形排列，接地检测线与接地导线位于相线芯外侧间隙中，并与相线芯的金属屏蔽层紧密接触；动力线芯、接地检测线、接地导线外面依次设有内护套、编织加强层、外护套；所述动力线芯由内到外依次包括导体、导体屏蔽层、绝缘层、绝缘屏蔽、金属屏蔽层；接地检测线包括接地检测线导体和接地检测线绝缘层。通过上述设计方案，可以有效地保证电缆整体抗拉性和耐磨性，显著提高了电缆的抗拉强度和使用寿命，能完全适用特殊场合对便携电缆的要求。 【EN】The utility model discloses a reinforced extra-heavy portable cable for coal mines, which comprises three power wire cores, a grounding detection wire and two grounding conductors, wherein the three power wire cores are arranged in a triangular shape, and the grounding detection wire and the grounding conductors are positioned in the clearance outside the phase wire cores and are in close contact with the metal shielding layers of the phase wire cores; an inner sheath, a braided reinforcing layer and an outer sheath are sequentially arranged outside the power wire core, the grounding detection wire and the grounding lead; the power wire core sequentially comprises a conductor, a conductor shielding layer, an insulating shield and a metal shielding layer from inside to outside; the ground detection line includes a ground detection line conductor and a ground detection line insulation layer. Through above-mentioned design, can guarantee whole tensile resistance and the wearability of cable effectively, show the tensile strength and the life who have improved the cable, can be suitable for the requirement of special occasion to portable cable completely.