R-UL 020
LIB Industry
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The LIB UL Rain And Sprinkler Test Apparatus is engineered to evaluate the water resistance performance of outdoor electrical and electronic products under simulated rainfall and sprinkler conditions. Constructed with a durable SUS304 stainless steel framework, the system is equipped with four precision spray nozzles—three positioned above the specimen and one below—to achieve comprehensive water exposure. The nozzles are arranged with 710 mm spacing and spray at a 45° angle, meeting UL testing requirements. An integrated water circulation and purification system maintains a stable pressure of 34.5 kPa, ensuring consistent and repeatable test conditions.
Working Principle of the UL Rain And Sprinkler Test Apparatus Test Equipment
1. Realistic Rain Exposure Simulation: The apparatus generates controlled rainfall conditions through specially designed spray nozzles that distribute water evenly across the test specimen. Operating at a regulated pressure, the system reproduces outdoor rain and sprinkler effects, helping evaluate enclosure protection performance against water penetration.
2. Adjustable Configuration for Various Products: The spray assembly can be positioned at different heights to accommodate a wide range of product dimensions. Precisely arranged nozzle locations and fixed spray angles provide standardized water distribution, making the system suitable for testing lighting equipment, electrical enclosures, photovoltaic components, communication cabinets, and other outdoor products.
3. Consistent Water Delivery System: A built-in automatic water supply unit continuously delivers clean water to the spray network. Flow monitoring and pressure regulation mechanisms help maintain stable operating conditions throughout the test cycle, improving result accuracy and repeatability.
4. Heavy-Duty Stainless Steel Construction: Both the structural frame and water-contact components are manufactured from SUS304 stainless steel for long-term corrosion resistance. The rigid design minimizes vibration during operation, while lockable caster wheels enable convenient relocation within laboratory environments.
5. Automated and Safe Operation: The equipment supports programmable testing sequences, allowing users to define spray duration and operating parameters according to specific standards. Multiple safety protections, including overload protection and leakage prevention, ensure reliable operation and safeguard both the equipment and test specimens during extended testing periods.
System Specifications of the UL Rain And Sprinkler Test Apparatus
Model | R-UL020 |
Overall Dimensions (mm) | 800*1500*2200 mm |
Height adjustment range of spray device | 1000-2000 mm |
Number of spray head | 4 spray heads(There are 3 spray heads on the top and 1 spray nozzle on the bottom) |
Nozzle spacing | 710 mm |
Spraying Hole Diameter | Φ5mm |
Water pressure | 34.5Kpa |
Sample platform size | 500X1500X500 |
Load of sample platform load | 100 Kg |
Water Pressure Control | Flow meter |
Water supply system | Automatic water supply, Water purification system |
Material | SUS304 stainless steel |
Standard | UL 50E Type 3R |
Typical UL Rain And Sprinkler Tests Performed
The UL Rain And Sprinkler Test Apparatus is designed to assess the resistance of outdoor products and enclosures to rain, water spray, and sprinkler exposure. It is widely used to verify the effectiveness of protective housings and sealing systems under simulated environmental conditions. Typical applications include rain resistance testing of electrical distribution cabinets, water exposure evaluation for outdoor luminaires and LED fixtures, waterproof performance verification of photovoltaic junction boxes, enclosure integrity testing of industrial control equipment, and moisture protection assessment of telecommunications enclosures. The equipment is also suitable for conducting IPX3 and IPX4 water spray tests in accordance with relevant ingress protection requirements. The system provides adjustable testing parameters to accommodate different product types and standards. Test conditions can include prolonged rainfall exposure, regulated water pressure, adjustable spray heights, and multi-angle water distribution. With uniform nozzle coverage and stable operating conditions, the apparatus delivers consistent and repeatable results for product development, quality control, and certification testing.
Video of the UL Rain And Sprinkler Test Apparatus Test Equipment
FAQs on the UL Rain And Sprinkler Test Apparatus Test Equipment
Q1: Is it possible to modify the spray system configuration for specific test requirements?
Yes. LIB can customize the spray framework based on customer requirements, including spray height, nozzle arrangement, nozzle quantity, nozzle spacing, and test area dimensions. This ensures the equipment matches different product sizes and applicable testing standards.
Q2: Which industries typically use the UL Rain And Sprinkler Test Apparatus?
The equipment is widely applied in industries that require outdoor weather resistance verification, such as outdoor lighting, power distribution equipment, renewable energy systems, telecommunications, transportation infrastructure, and industrial automation products.
Q3: How does the equipment ensure consistent water spray performance during testing?
The system is equipped with an automatic water supply unit and water filtration system that help maintain stable water quality and spray pressure throughout the test process. This improves test repeatability and reduces routine maintenance requirements.
Q4: Can the apparatus perform long-duration rain exposure tests?
Yes. The equipment is designed for continuous operation and supports programmable test cycles. Users can set the required spray duration and testing parameters to simulate extended outdoor rainfall conditions for product durability and waterproof performance evaluation.
