Introduction to IP testing

1. IP test purpose: to verify the protective effect of the product shell

Prevent the human body from approaching dangerous parts inside the shell;

Prevent solid foreign objects from entering the equipment inside the shell;

Prevent harmful effects on the equipment caused by water entering the shell.

2.The meaning of IP protection level: International Protection, such as IP67

6 is the first characteristic number, representing the dustproof level

7 is the second characteristic number, representing the waterproof level

3. The meaning and requirements of each level of dust protection:

IP1X

Protection against solid foreign objects - back of hand

The 50mm diameter spherical test tool should be sufficiently far away from dangerous parts

IP2X

Protection against solid foreign objects - fingers

The hinged test finger with a diameter of 12.5mm and a length of 80mm should have sufficient clearance from hazardous parts.

IP3X

Protection against Solid Foreign Objects-Tools

Test tools with a diameter of 2.5mm are not allowed to enter the shell

IP4X

Protection against solid foreign matter-metal wire

Test tools with a diameter of 1mm are not allowed to enter the shell

IP5X

dust-proof

Dust must not affect the normal operation and safety performance of the equipment

IP6X

Dusty

No dust enters

4. The meaning and requirements of each level of waterproofing:

waterproof level

meaning

Require

IPX0

No protection

no request

IPX1

Prevent vertical dripping

Vertical dripping of water has no harmful effects

² Water flow: 1mm/minute

² Sample rack speed: 1 rpm

² Test time: 10 minutes

IPX2

Prevents vertical water dripping when the housing is tilted at an angle of 15°

When each vertical surface of the housing is tilted within 15°, dripping water in the vertical direction will have no harmful effects.

² Water flow: 3mm/minute

² Sample rack speed: no rotation

² Sample placement angle: two mutually perpendicular planes inclined at an angle of 15° to the vertical direction

² Test time: 2.5 minutes per vertical surface

IPX3

Anti-spray

Water spraying on each vertical surface of the shell within a range of 60° will have no harmful effects.

² Water flow: 0.07 liters/minute/pinhole

² Sample rack speed: 1 rpm

² Swing tube swing angle: ±60° angle, total 120° angle

² Swing tube speed: 60° angle/second

² Water outlet pinhole: 120° arc

² Distance between sample and needle: 200mm

² Test time: After 5 minutes, rotate the sample 90° in the horizontal direction and test again for 5 minutes.

² 10 minutes in total

IPX4

Splashproof

Water splashing from all directions on the casing has no harmful effects

² Water flow: 0.07 liters/minute/pinhole

² Sample rack speed: 1 rpm

² Swing tube swing angle: ±180° angle, total 360° angle

² Swing tube speed: 60° angle/second

² Water outlet pinhole: 120° arc

² Distance between sample and needle: 200mm

² Test time: 10 minutes

IPX5

Anti-spray

Water spraying from all directions on the shell has no harmful effects

² Water flow: 12.5±0.625 liters/minute

² Sample rack speed: 1 rpm

² Nozzle inner diameter: 6.3mm

² Distance between sample and needle: 2.5~3.0m

² Test time: 3 minutes

IPX6

Protect against strong water spray

Strong water spray from all directions on the shell will have no harmful effects

² Water flow: 100±5 liters/minute

² Sample rack speed: 1 rpm

² Nozzle inner diameter: 12.5mm

² Distance between sample and needle: 2.5~3.0m

² Test time: 3 minutes

IPX7

short-term immersion in water

Soaking in 1 meter of water for 30 minutes will have no harmful effects

² The lowest point of the shell with a height less than 850mm should be 1000mm below the water surface;

² The highest point of the shell with a height of ≥850mm should be 150mm below the water surface;

² Test time: 30 minutes

IPX8

Anti-continuous diving

Customer-defined water depth/immersion time (strength exceeds level 7), no harmful effects

² The test water depth and diving time are determined by the manufacturer, and the test conditions are higher than IPX7.

IPX9

Protection against high temperature/high pressure water spray

² Spray angle: 0°, 30°, 60°, 90°;

² Injection temperature: 80℃;

² Spray distance: 175±25mm;

² Turntable speed: 5±1 rpm/min

² Water flow: 15±1L/mn

² Test time: 30s for each angle

5.Applicable test standards:

GB/T 4208-2017, IEC 60529:2013 (civilian products)

GB 7000.1-2015, IEC60598-1:2014 (Lamps)

GB/T 30038-2013, ISO 20653:2013 (vehicle products)

6. Laboratory testing capabilities:

A set of IPX1~IPX9 waterproof testing system (including IPX4K and IPX6K)

Two dustproof test chambers: volume 1 cubic meter