[email protected]

open pit mining cables Mongolia

2 Min Read
The Design Temperature Assumption: AS/NZS 1802 mining cable standards were developed for Australian and New Zealand mining conditions, where minimum ambient temperatures rarely drop below -10°C to -15°C. The standard's base material specifications (PCP chloroprene jacket, standard EPR insulation) were formulated for this relatively temperate range. A cable certified to AS/NZS 1802 specifications is guaranteed to function correctly from 0°C to 60°C (typical service range), with an operating floor around -20°C at absolute minimum. AS/NZS 1802矿用电缆标准是为澳大利亚和新西兰矿业条件而开发的，最低环境温度很少低于-10°C至-15°C。该标准的基础材料规范(PCP氯丁橡胶护套、标准EPR绝缘)针对这个相对温暖的范围而配制。根据AS/NZS 1802规范认证的电缆保证在0°C至60°C范围内正确工作，绝对最低工作温度约为-20°C。
Technical Department
on06/03/2026

Cold Bend Performance: Modifying AS/NZS Mining Cables for -40°C Operation in Mongolia

The Design Temperature Assumption: AS/NZS 1802 mining cable standards were developed for Australian and New Zealand mining conditions, where minimum ambient temperatures rarely drop below -10°C to -15°C. The standard’s base material specifications (PCP chloroprene jacket, standard EPR insulation) were formulated for this relatively temperate range. A cable certified to AS/NZS 1802 specifications is guaranteed to function correctly from 0°C to 60°C (typical service range), with an operating floor around -20°C at absolute minimum. AS/NZS 1802矿用电缆标准是为澳大利亚和新西兰矿业条件而开发的，最低环境温度很少低于-10°C至-15°C。该标准的基础材料规范(PCP氯丁橡胶护套、标准EPR绝缘)针对这个相对温暖的范围而配制。根据AS/NZS 1802规范认证的电缆保证在0°C至60°C范围内正确工作，绝对最低工作温度约为-20°C。
3 Min Read
The Gobi Desert in southern Mongolia, where Oyu Tolgoi and other mining operations are located, experiences one of the most thermally extreme climates on Earth. Winter temperatures regularly drop to -35°C to -45°C, with recorded extremes approaching -50°C. Conversely, summer surface temperatures exceed +45°C, and cables exposed to direct solar radiation can reach +55°C to +65°C. This represents a temperature differential of 95–115°C between winter lows and summer highs—far exceeding the thermal cycling experienced in most mining regions globally. 蒙古南部戈壁沙漠，奥尤陶勒盖等矿区所在地，经历全球最极端的热气候之一。冬季温度经常降至-35°C至-45°C，记录低温接近-50°C。反之，夏季地表温度超过+45°C，直接暴露在太阳辐射下的电缆可达+55°C至+65°C。这代表冬季低温和夏季高温之间温度差异95-115°C，远远超过全球大多数矿区经历的热循环。 The Cable Deployment Context: Rio Tinto's 6.6kV trailing cables at Oyu Tolgoi power large electric shovels, electric drill jumbos, and load-haul-dump (LHD) equipment. These cables experience: (1) Winter deployment at -40°C where equipment must operate continuously despite extreme cold, (2) Coiling on equipment reels in -40°C conditions with high mechanical tension, (3) Summer storage in surface conditions where cables experience +50°C+ heat exposure, (4) Repeated thermal cycling as equipment moves between underground (warmer) and surface (colder or hotter) locations.
Technical Department
on06/03/2026

Rio Tinto Mongolia Cable Specs: Preventing Jacket Cracking on 6.6kV Mining Cables in Gobi Desert Extreme Climate

The Gobi Desert in southern Mongolia, where Oyu Tolgoi and other mining operations are located, experiences one of the most thermally extreme climates on Earth. Winter temperatures regularly drop to -35°C to -45°C, with recorded extremes approaching -50°C. Conversely, summer surface temperatures exceed +45°C, and cables exposed to direct solar radiation can reach +55°C to +65°C. This represents a temperature differential of 95–115°C between winter lows and summer highs—far exceeding the thermal cycling experienced in most mining regions globally. 蒙古南部戈壁沙漠，奥尤陶勒盖等矿区所在地，经历全球最极端的热气候之一。冬季温度经常降至-35°C至-45°C，记录低温接近-50°C。反之，夏季地表温度超过+45°C，直接暴露在太阳辐射下的电缆可达+55°C至+65°C。这代表冬季低温和夏季高温之间温度差异95-115°C，远远超过全球大多数矿区经历的热循环。 The Cable Deployment Context: Rio Tinto’s 6.6kV trailing cables at Oyu Tolgoi power large electric shovels, electric drill jumbos, and load-haul-dump (LHD) equipment. These cables experience: (1) Winter deployment at -40°C where equipment must operate continuously despite extreme cold, (2) Coiling on equipment reels in -40°C conditions with high mechanical tension, (3) Summer storage in surface conditions where cables experience +50°C+ heat exposure, (4) Repeated thermal cycling as equipment moves between underground (warmer) and surface (colder or hotter) locations.