Pre-Test Preparations & Installation Issues for Aging Rooms

Aging rooms (high-temperature aging rooms / constant-temperature & humidity aging rooms) are core facilities for reliability verification of power supplies, electronics, automotive, energy storage and other products.Adequate pre-test preparation and standardized installation directly determine the accuracy of test data, equipment safety, and service life.This article summarizes key points from two dimensions: critical installation issues and pre-test preparations, helping you avoid rework, safety hazards and data distortion.

1. Core Installation Issues of Aging Rooms (Must-Check Items)

(1) Site & Environment Requirements

Space Dimensions & Load-Bearing Capacity

Reserve space for equipment, operation and heat dissipation:At least 0.8–1.2m on each side and over 0.5m above the top for hoisting and maintenance.

Floor load-bearing:≥500kg/㎡ for general aging rooms;≥800–1000kg/㎡ for heavy-duty racks or high-power load cabinets.Floor hardening or reinforcement is required in advance to prevent settlement and cracking.

Door dimensions:Width ≥1.2m, height ≥2.2m to allow equipment entry.Large aging rooms may require door removal or reserved hoisting openings.

Environmental Conditions

Ambient temperature: 15–30℃, away from direct sunlight, heat sources and cold sources.

Humidity: 30%–70%RH, no corrosive gas, dust, flammable or explosive materials.

Keep away from strong electromagnetic interference (frequency converters, large motors).

Ventilation: Adequate ventilation for units; no obstruction at air outlets to avoid air short-circuit.

Power Supply & Grounding

Power configuration: Three-phase five-wire system (380V 50Hz), neutral and ground wires separated.

Reserve 1.2–1.5 times rated power to avoid startup overload.

Cable size matched to power; routed in conduits, separate from signal lines.

Grounding resistance ≤4Ω, independent grounding to prevent leakage and static damage.

Water Supply, Drainage & Exhaust

Constant-temperature & humidity rooms: Tap water (0.2–0.4MPa) and drainage pipe (≥DN25) required.

High-temperature or exhaust-type rooms: Reserved exhaust ducts connected to outdoors or treatment systems.

(2) Equipment Installation & Commissioning

Leveling & Fixing

Cabinets, units and load cabinets must be installed horizontally (deviation ≤2mm/m).

Heavy equipment fixed with expansion bolts to prevent vibration and displacement.

Sealing & Thermal Insulation

Door gaps, windows, cable holes and air ducts must be well sealed to avoid temperature fluctuation.

Seal panel joints to eliminate thermal bridges, reducing energy consumption by over 30%.

Temperature Uniformity Commissioning

Conduct 9-point testing per GB/T 5170.2 under no-load and full-load conditions.

Qualified standard: temperature uniformity ≤±2℃, fluctuation ≤±0.5℃.

Safety Device Installation

Required: over-temperature protection, smoke alarm, emergency stop, door interlock, leakage protection, fire extinguishing system (dry powder or gas type, no water).

Test racks with insulation treatment and overcurrent/overvoltage/short-circuit protection.

(3) Common Installation Pitfalls

Insufficient floor bearing → ground cracking

Inadequate power or undersized cables → frequent tripping

Neutral-ground mixing → static breakdown of products

Poor sealing → poor temperature uniformity + high energy consumption

No maintenance space → difficult later upkeep

2. Pre-Test Preparations for Aging Rooms

(1) Personnel & Qualification

Operators must be professionally trained on operation, safety plans and emergency response.

Confirm person in charge and test plan (temperature, humidity, duration, load, cycles).

(2) Equipment & Product Inspection (1 hour before test)

Aging Room Inspection

Door seal and door interlock in good condition.

Fans, compressors, heaters run smoothly without abnormal noise, oil or water leakage.

Sensors calibrated, display deviation ≤±0.5℃.

Safety devices and fire equipment ready.

Product & Fixture Inspection

Products intact, no damage, leakage or deformation.

Fixtures and load cabinets well insulated, wiring secure.

Products placed evenly with 5–10cm gaps, not blocking air ducts.

Parameter Setting & Pre-Operation

Set temperature, humidity, duration and cycle mode.

Run empty for 2 hours to confirm stable temperature field and no alarms.

Record no-load data and compare with standards.

(3) Safety & Emergency Preparation

Post warning signs; clear flammables and explosives.

Prepare insulated gloves, fire extinguishers, emergency lights, first-aid kit.

Establish emergency procedures: stop → cut power → inspect in case of abnormality.

(4) Data & Recording Preparation

Prepare test forms (product ID, parameters, time, anomalies).

Confirm data acquisition system works properly with sufficient storage.

3. Final Pre-Test Checklist

Site bearing, size and ventilation meet requirements

Power, grounding, water supply and exhaust in place

Equipment level, well sealed, temperature uniformity qualified

Safety devices tested normal

Products and fixtures well insulated and properly placed

Sensors calibrated, parameters correct, 2-hour no-load test passed

Personnel trained, emergency plan ready

Test plan, records and data system confirmed

4. Summary

Installation is the foundation, and pre-test preparation is the key.Controlling site, power, sealing and temperature uniformity avoids 80% of later problems.Full pre-test checks ensure reliable data and safe operation.

Standardized installation and sufficient preparation extend service life,fully realize the value of early defect detection and quality assurance,and help enterprises reduce costs, improve efficiency and enhance competitiveness.