UL Water Spray Rain Test Device – Focus on Rain Waterproof Testing
Implementation standards:
The UL water spray rain test device is based on the requirements in Figure 38.1, Figure 38.2 of the UL60507-ENGL 1999 standard, and “ANSI Z21.10.3-2004” and “Figure 10/Figure 11 clauses in the ANSI Z21.58 standard” and “CSA4.3 -2004” standards to meet UL1598, UL153, UL154B, UL1703, UL8750, UL1741, UL514B, UL1278, UL1571 and other standards.
Equipment characteristics:
- Applicable to UL rain test and 45° water spray test of products.
- Water spray position of UL test device: 3 UL nozzles above.
- The frame part of this device is made of formed aluminum material, with stable structure and easy to clean.
- The nozzle holder can be moved, and it can be raised and lowered freely through the hand-operated stainless steel wheel device.
- This device adopts the original imported nozzle of UL laboratory, which fully complies with UL standard.
- The bracket base adopts universal casters with brakes, which is convenient to move and fix.
- The domestic brand “Hongqi” stainless steel pressure gauge is used to display the spray water flow rate (each nozzle has a corresponding pressure gauge).
- The nozzle distribution of the equipment is designed in strict accordance with the standard, as shown in the figure:
Technical parameters:
| External dimensions of equipment | About 1500*800 mm |
| Equipment height adjustable range | 1000~2000mm |
| Number of nozzles | 3pcs or 4pcs |
| The distance between the water jet intersection and the ground | 0-1000mm |
| Water flow rate | ≥10L/min |
| Total water pressure | 50~150Kpa |
| Single nozzle pressure | About 34.5Kpa |
| Number of pressure gauges | 4pcs |
FAQ – UL Rain Test Sprinkler and Apparatus Test Setup
What is a UL water spray rain test device?
A UL water spray rain test device is used to simulate rainfall conditions to evaluate the water resistance of electrical and electronic products. It helps verify whether equipment can operate safely when exposed to rain or water spray.
Which standards does the UL rain spray test device comply with?
The equipment is designed according to several UL and ANSI standards, including UL 60507, UL 1598, UL 153, UL 1703, and ANSI Z21.10.3. These standards define the nozzle configuration, spray pattern, and water pressure required for rain simulation testing.
What products require UL rain spray testing?
UL rain spray testing is commonly required for outdoor electrical products such as luminaires, solar panels, electrical enclosures, and gas appliances. The test ensures the product remains safe and functional when exposed to rain.
What is the difference between UL rain testing and IP waterproof testing?
UL rain testing follows UL safety certification standards mainly used in North America, while IP waterproof testing follows IEC 60529 ingress protection ratings. The test procedures and evaluation criteria are different.
Who uses UL rain spray test equipment?
UL rain spray test equipment is widely used by certification laboratories, lighting manufacturers, electrical equipment producers, and quality inspection organizations for product compliance and reliability testing.
