2026-02-10
With the rapid deployment of outdoor EV charging stations, manufacturers and testing laboratories are facing increasing challenges:
1. High Risk of Water Ingress
(1) Charging piles are exposed to: heavy rain, wind-driven water, long-term outdoor environments
(2) Poor sealing may lead to: internal short circuits, component corrosion, electrical failure or safety hazards
2. Certification Pressure
(1) To enter international markets, EV chargers must comply with: IEC 60529 (IP protection) & local grid and safety regulations
(2) Without standardized rain testing
3. Inconsistent Manual Testing
Traditional testing methods often suffer from:
(1) Non-uniform rainfall distribution
(2) Unstable flow and pressure
(3) Poor repeatability
This leads to unreliable test results and customer complaints after installation.
4. Increasing Reliability Requirements from Operators
Charging network operators now require:
(1) Higher IP protection levels
(2) Long-term outdoor durability
(3) Verified sealing performance for doors and interfaces
Manufacturers must provide objective and traceable test data.
Sinuo’s Fully Automatic IPX4 Rain Test System is designed to provide a standardized rainfall environment in accordance with IEC 60529, enabling accurate verification of charging station waterproof performance.
The system simulates real rain conditions using matrix-arranged IPX4 nozzles and PLC-controlled automatic operation, ensuring consistent and repeatable test results.
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1. Improve Product Safety
(1) Detect sealing weaknesses before shipment
(2) Prevent field failures and safety incidents
2. Accelerate Certification
(1) Compliant with IEC 60529 IPX4 requirements
(2) Reduce risk of test rejection
3. Enhance Brand Reliability
(1) Provide documented and repeatable test data
(2) Meet requirements from utilities and operators
4. Reduce Long-Term Costs
(1) Avoid costly redesign and rework
(2) Minimize after-sales maintenance claims
EV charger manufacturers
Third-party testing laboratories
Certification organizations
Factory R&D and QA departments
Sinuo IPX4 Rain Test System helps customers ensure that every charging station delivered to the market is ready for real outdoor conditions.