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Precautions for Large-Scale Infrastructure and Construction Generators

Collection of Preventive Measures for the Use of Generator Sets in Large-Scale Infrastructure and Construction

wangji

1/1/2026

Application Scenarios

Construction sites, roads and bridges, water conservancy projects, main power supply before formal grid connection.

Generator Set Selection Recommendations

Selection Factors Recommendations

Power Range 50-500kW

Mobility Trailer type or containerized

Durability Sturdy, suitable for outdoor and rough conditions

Voltage 380V/220V multiple outputs

Additional: Rental Model and Shared Power Station

Construction companies prefer renting over purchasing; rental + maintenance services can be provided.

Multiple work areas can share mobile power stations to reduce initial investment.

Installation Key Points

Select a central area to shorten cable lengths.

Trailer-type units should be parked on solid, level ground and protected from rain during the rainy season.

Cables should be elevated or buried in conduits; distribution boxes with leakage protection.

Supplement: Safety and Compliance

Temporary electricity use must comply with JGJ46 standards, using a TN-S grounding system for protection.

On-site fuel storage must meet fire safety requirements and be kept away from fire sources.

Potential Problems

Problem Cause Solution

Long-term full-load overheating Overload Reserve 20% capacity or use multiple units in parallel

Radiator blockage Dust Clean daily, use pre-filters

Cable damage Improper laying Elevate/bury in conduits, mark with stakes

Large load fluctuations Starting/stopping large equipment Consider inrush current in selection, increase unit capacity or add soft starters

Fuel management confusion Multiple dispersed work sites Establish fuel records, use tank trucks for unified distribution