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

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Issue Time: 2026/9/1 14:27:09

Summary

From High-Altitude Power Vulnerability to All-Weather Mobile Backup Assurance

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

Mobile Diesel Generator Sets (Weather-Proof Type) — Case Study

From High-Altitude Power Vulnerability to All-Weather Mobile Backup Assurance

01 Project Background & Situation Before We Engaged

The Jiama Copper Polymetallic Mine, operated under China Gold Group Construction Co., Ltd., is a large-scale polymetallic mining operation in Tibet. The Yulongbu Tailings Storage Facility (TSF) is a critical hazard source whose safe operation directly affects downstream ecological security and mine continuity. The PC (Procurement & Construction) project required reliable mobile power for construction phases, dewatering pumps, monitoring systems, and emergency response — all at an altitude exceeding 4,300 meters.

Before we engaged, the project faced severe power challenges:

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.

02 Tender Purpose & Bidding Process

Tender Objectives

The PC project launched this procurement with the core goals of "plateau adaptability, weather-proof reliability, mobility, environmental compliance, and intelligent oversight." Key requirements included:

✓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.

Bidding Process

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.

03 Post-Award Objectives

Beyond simply supplying equipment, the client aimed to establish "all-weather mobile power assurance for the entire Yulongbu TSF construction zone":

✓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.

04 Why They Found Us

1. Plateau track record: We had delivered weather-proof mobile units to mining projects above 4,500 m on the Qinghai-Tibet plateau.

2. Deep load understanding: We understood the pulsed startup of dewatering pumps and the zero-tolerance power requirement of dam safety sensors.

3. Free pre-audit: We provided a no-cost altitude derating calculation and site layout plan before bidding.

4. Verified cold-start proof: Our on-site demo at 3,650 m was the only one meeting the -18 °C / 8-second start criterion.

5. Full lifecycle commitment: A 5-year SLA with a Lhasa spare-parts depot and 4-hour remote plateau response.

05 Our Proposal & Recommendations

We delivered an integrated "Plateau Power + Weather-Proof + Mobility + Intelligent Management" solution:

Dimension	Core Recommendation	Value Proposition
Plateau Adaptability	Turbocharged engines with altitude-compensated fuel mapping; -25 °C glow-plug preheating and synthetic cold-start oil.	>90 % power retention at 4,300 m; reliable cold starts.
Weather-Proof Design	IP55-rated all-steel canopy with double-slope rain roof, sealed control cabinet (IP65), UV-resistant cable glands.	Operational in blizzards and heavy rain; no panel short circuits.
Mobility	Trailer-mounted with off-road tires & tow bar + skid-mounted backup; single-point lifting hooks for crane moves.	Redeploy to any construction point within 2 hours.
Auto-Start & ATS	Optional ATS module for mains-loss auto-start in 3–8 s, prioritizing dam safety & dewatering loads.	Zero interruption for critical safety systems.
Eco & Fuel System	DPX silencer, oil containment sump, 72 h dual-wall fuel tank with spill-proof coupling.	Protects fragile plateau ecosystem; meets environmental red lines.
Smart Fleet Management	IoT module reporting location, runtime, fuel level & fault codes to the project HQ dashboard.	One-screen fleet visibility; proactive maintenance.

06 Execution & Implementation

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.

07 Final Results & Outcomes

Power Retention @ 4,300 m

92%

Exceeded the 90 % tender requirement.

Cold-Start Time

7.4 s

At -20 °C, within the 8 s target.

Weather-Proof Rating

IP55

Zero rain/snow-induced outages.

Env. Compliance

100%

No oil leaks or emissions violations.

✓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.

08 Client Testimonial

"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

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