Understanding the Importance of Waterproof Testing for Electronic Devices

Waterproof testing is used to verify the effectiveness of protective covers, shells, and sealing washers that prevent water from penetrating the product; Check the ability of the product to meet its performance requirements when exposed to water and after exposure; Inspect for any physical damage to the product caused by rain; Verify the effectiveness of any water removal device and packaging.

The waterproof test equipment can provide a realistic simulation of various environments that electronic products and their components may be subjected to during transportation and use, such as water and spray testing. To achieve the waterproof performance testing of various products.

Waterproof test basis standard:
GB/T2423.38 and IEC60068-2-18 “Environmental Testing for Electrical and Electronic Products – Part 2: Test Methods – Test R: Water Test Methods and Guidelines”

The standard specifies the test methods applicable to electrical and electronic products that may be subjected to dripping, flushing, or immersion during transportation, storage, or use. It assesses whether the sealing components such as the shell and cover of electrical and electronic products can ensure the good working performance of the equipment and components after or during the water test.

The impact of accumulated rain/infiltration on the product:
1. Causing a decrease in strength/swelling of certain materials;
2. Increased possibility of corrosion, corrosion, and even mold growth;
3. Increase product quality;
4. Make electrical and electronic equipment inoperable or unsafe;
5. Electrical equipment failure;
6. Internal freezing of products may cause slow and chronic degradation and functional failure due to component expansion or rupture;
7. Change heat exchange;
8. Propellant combustion slows down.

Waterproof test type：
1. Experiment Ra: Dripping – conducted using artificial rainfall and simulating precipitation formed by condensation or leakage.

2. Test Rb: Flushing – Impacting the water flow on the specimen at a certain pressure, and it can be assumed to rush towards the specimen from any angle.

3. Test Rc: Immersion – Immerse the test piece in water at a specified depth or corresponding pressure.

Waterproof testing method：
1. Drip Test Method Ra1: Artificial Rain Method – The test piece should be installed on a suitable fixing device or support frame, and then subjected to simulated natural rainfall precipitation.

2. Drip test method Ra2: Drip box method – The test piece is installed on a suitable fixing device below the drip tank. The test piece should withstand a drip test that simulates rainfall caused by condensation or leakage.

3. Flushing test method Rb1: swinging tube method and spray method — simulate spray or splash, for example, spray system to make results. The test piece is installed on a suitable fixing device and is subjected to the impact of water generated from the semicircular tube or droplet nozzle.

4. Flushing test method Rb2: Water spray method – The test piece should be installed on a fixed device to withstand simulated wheel splashing or strong sea wave water spray.

5. Immersion Test Method Rc1: Water Tank Method – The test piece is immersed in a water tank at a specified depth to withstand the specified pressure. After the condition test, the water entry should be checked and potential changes in performance should be detected.

6. Immersion Test Method Rc2: Pressurized Water Tank Method – The test piece should be completely immersed in the pressurized water tank to withstand the specified pressure. After the test, the specimen should be checked for water ingress and possible changes in its performance.

JL-X waterproof test machine is according to IEC60529:1989 +A1:1999 +A2：2013 《Degrees of protection provided by enclosures(IP Code)》, IEC60598, IEC60335 and IEC 60034-5, GB/T-2423.2, GB4208, GB7000.1. The JL-X includes the following test grades: IPX1, IPX2, IPX3, IPX4, IPX5, IPX6, IPX7 and IPX8 (Refer to page 51 of IEC60529). It is widely used in the authentication test organization for the products such as electrical & electronic products, LED luminaires as well as in the relevant quality control department for the waterproof detection of the enclosures protection grades.

The whole JL-X waterproof test system includes:
• Drip Box (JL-12): The drip box is for IPX1 and IPX2 drip test. The drip box size is 800x800x45mm (LxWxH). The diameter of drip hole is 0.4mm. The distance between drip holes is 20mm. The sample can be over 150kg.
• Swing Pipe Water Spray Test Equipment (JL-34): It is for IPX3 and IPX4 waterproof test. The semi-diameter of swing pipe is 1meter (Any other size is also available). The inside diameter of the swing pipe is 15mm. The sample rotating table diameter is 1000mm (Or other size according to the diameter of the swing pipe), and the height is adjustable. The rotation speed is 1~5rpm which controlled by PLC panel.
• Waterproof Jet Test Device (JL-56): With water supply device size is 1000x1000x600mm, the nozzle diameter is ф6.3mm (IPX5 waterproof test ) and ф12.5mm (IPX6 waterproof test). The water speed is 12.5 ±0.626L/min for IPX55 and 100 ±5L/min for IPX6
• Immersion tank Waterproof test Device (JL-7): It is for IPX7 waterproof test. The water tank size is 1000x1000x1200mm (Other size can be designed according to your request). It can test samples up to 120kg. 
• Immersion tank Waterproof test Device (JL-8): It is for IPX8 test. It can simulate a water depth of 0~50m. The water immersion tank diameter is 600mm and the height is 1200mm. The compressive stress is 10 atmospheres or design according to customer‘s request.

waterproof test JL-X

Lisun Instruments Limited was found by LISUN GROUP in 2003. LISUN quality system has been strictly certified by ISO9001:2015. As a CIE Membership, LISUN products are designed based on CIE, IEC and other international or national standards. All products passed CE certificate and authenticated by the third party lab.

Our main products are Goniophotometer, Integrating Sphere, Spectroradiometer, Surge Generator, ESD Simulator Guns, EMI Receiver, EMC Test Equipment, Electrical Safety Tester, Environmental Chamber, Temperature Chamber, Climate Chamber, Thermal Chamber, Salt Spray Test, Dust Test Chamber, Waterproof Test, RoHS Test (EDXRF), Glow Wire Test and Needle Flame Test.

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