What are the inspection precautions and standards for dryer?

Views: 50     Author: Site Editor     Publish Time: 2022-11-09      Origin: Site


Every winter, the south convenient rainy, wet and cold people can not bear, washing clothes will always dry, after the washing machine dehydrated, the next day is still a model of damp, after a long time and musty smell.  At this time, it is very necessary to buy a dryer. How to choose a dryer?  What are the inspection precautions and standards for dryer?  


I. Inspection of appearance, packaging and marking  

Observe whether the package is complete, free of breakage and extrusion, and whether the package conforms to the product package instructions.  Observe the overall appearance of the product to see whether it is the same as the figure.  Whether the manual, warranty card and so on are complete.  Is the outer box size consistent with the product book?  


Ii. Data measurement and field test  

1. Drop test for shipping (not for fragile products)  

According to ISTA  

1A standard execution of the drop test, after 10 falls, the product and packaging should be free of fatal and serious problems.  


2. Measurement of product size/power cord length/product weight  

Apply +/-3% tolerance according to product specifications and approved samples if the customer does not provide detailed tolerance or tolerance requirements  


3. Scan the barcode/QR code  

The bar code can be scanned, and the scanning results are correct  


4. Assembly/installation check  

The product should be assembled correctly according to the instructions or instructions.  No ill effects  


5. Full feature check (including features that must be assembled)  

Such functions as installation, adjustment, switch/knob, setting, display, and use should all work well.  All functions shall conform to the declaration.  


6. Coating adhesion test  

With 3 m  

600 adhesive paper for oil injection, hot stamping, UV coating, printing adhesion test, the content can not be 10% off,  


7. Check the startup  

The sample shall be powered at rated voltage and work for at least 4 hours under full load or according to the instruction (if less than 4 hours). After testing, the sample shall be able to pass the high voltage test, function test, grounding resistance test, etc., with no defects in the junction test  


8. Grounding test (if applicable)  

Lighting: Minimum 10 amps, one second, resistance not greater than 0.5 ohms  

Other household appliances: 25 amp, one second, resistance not greater than 0.1 ohms  

Us and Canada: 25 amps, one second, resistance not greater than 0.1 ohms  


9. Power consumption check or input power/current check  

Power consumption/input power/current should comply with product specifications and safety standards  


10. Power cable tension test  

IEC standard: Pull 25 times, no more than 1KG, pull 30N, no more than 1KG, no more than 4  

KG, pull 60N, greater than 4kG, pull 100N. After the pull line displacement does not exceed 2mm. UL  

Standard: Pull 35 LBS 1 min, line without displacement.  


11. Internal work and inspection of key parts  

Check the internal structure and key components by CDF or CCL  


12. Adhesion test of printing, identification and nameplate  

Wipe 15S rated stickers with a cloth dipped in water, and then wipe 15S with a cloth dipped in gasoline. There should be no bad effects  


13. Stability test (for vertical products)  

The product is normally placed on an inclined surface at 10 degrees from the horizontal plane (heater  

15 degrees), the power cord should be placed in the most unfavorable position, the appliance should not tip over.  


14. High pressure test  

Operate with the required voltage (voltage depending on the product class or the voltage below the root)  

Between the parts to be tested, action time 1S, current 5mA.  Required test electrical  

Pressure: Products sold to the US or Canadian market shall be 1200Va.c.  Sold to Europe  

Class I is 1000Vac, Class II sold to Europe is 2500Vac. No insulation breakdown  


15. Speed test  

No reference standard  


16. Noise test  

No reference standard  


17. Low voltage start  

80% of the rated voltage can be started normally  


18. Leakage current test  

127V leakage is less than 0.75mA  


19. Temperature test  

Test the maximum cavity temperature  


20. Product capacity check  

Check the product volume capacity based on the actual capacity.