China Gold Group Construction Co., Ltd. — Jiama Copper Polymetallic Mine Yulongbu Tailings Storage Facility PC Project

• Extreme plateau environment: At 4,300 m, thin air, extreme temperature swings (-25 °C to 25 °C), and intense UV radiation caused ordinary generator sets to lose up to 35 % of rated power and suffer frequent hard starting.
• No weather protection: Open-frame rental units offered no rain or snow shelter. Snowstorms and heavy rainfall repeatedly shorted control panels, leaving dewatering pumps dead during critical rainstorms.
• Immobile & slow deployment: Fixed units could not follow the advancing construction front. Relocating power meant half a day of manual handling, delaying the TSF construction schedule.
• Environmental & safety risk: Raw exhaust and oil leakage onto the plateau tundra risked violating environmental red lines, while tailings dam instrumentation losing power posed a major safety hazard.
• Chaotic management: Mixed-vendor rentals with no maintenance records left project leaders with zero visibility into runtime hours, fuel use, or unit health.

• ✓Rated power with no less than 90 % output retention at 4,300 m altitude and -25 °C cold start capability.
• ✓IP55-level weather-proof enclosures with certified rain/snow resistance.
• ✓Trailer-mounted / skid-mounted mobility for rapid redeployment across the construction front.
• ✓Compliance with plateau ecological protection and tailings safety monitoring power-supply standards.

• Pre-qualification: Only manufacturers with mining/mobile generator references above 4,000 m and valid OEM authorization passed.
• Technical bid: Scored on plateau derating data, weather-proof certification, mobility design, ATS option, and cold-start scheme.
• On-site demonstration: Shortlisted bidders tested units at a Lhasa logistics yard at 3,650 m; we delivered the only unit starting within 8 seconds at -18 °C.
• Commercial & award: Within the control price, our "plateau mobile weather-proof package + SLA" scored highest overall and was awarded the contract.

• ✓Guarantee uninterrupted power for dewatering and tailings dam safety instrumentation under any weather.
• ✓Enable one unit to flexibly follow multiple construction points, eliminating redundant purchases.
• ✓Build a unified, traceable fleet management system for the project's entire generator inventory.

• Altitude commissioning: Upon arrival at 4,300 m, we re-tuned the ECU for thin-air combustion and conducted a 72 h load-run to validate the 90 % power retention claim.
• Weather-proof verification: We performed simulated rain/snow spray tests on the canopy seals and confirmed IP55 integrity before handover.
• Mobility drill: Demonstrated relocation from the dewatering station to the dam crest via trailer tow in under 2 hours, witnessed by the project owner.
• ATS integration: Connected the units to the tailings dam safety monitoring cabinet with auto-failover, tested via simulated mains-loss drills.
• Personnel training: Trained operators on plateau-specific cold-start, canopy maintenance, and IoT dashboard use; issued bilingual (CN/EN) SOP cards.
• O&M regime: Quarterly on-site inspections plus remote diagnostics from our Lhasa service center, with a 4-hour response commitment.

• ✓Uninterrupted safety monitoring: Dam instrumentation retained continuous power through two major snowstorms, with zero tailings safety incidents.
• ✓Schedule protection: Mobile redeployment kept dewatering pumps online, avoiding an estimated 18 days of weather-related construction delay.
• ✓Fleet efficiency: One mobile unit covered 4 construction points, reducing the planned purchase quantity by 3 sets and saving approx. 25 % in capital cost.
• ✓Audit-ready: IoT runtime and fuel records made environmental & safety inspections fully traceable.

"On this plateau, a tailings dam cannot afford even a second of lost power. These weather-proof mobile units have become our most reliable safeguard — rain, snow, or freezing night, the dewatering and monitoring systems never go dark. That is true peace of mind." — Project Manager, Yulongbu Tailings Storage Facility PC Project