Dust Test

[project introduction]

There are dust-proof test requirements for portable, outdoor and automotive electronics. Both IEC, mil, ETSI and SAE have developed corresponding test requirements internationally.

IEC / en60529 dust prevention is divided into 7 grades (grade 0 ~ grade 6) and dust prevention grade (e.g. ip5x - dust prevention grade 5)

Level 0: no dust protection at all

Level 1: it can protect and prevent foreign matters with a diameter greater than 50mm from falling into the equipment

Level 2: it can protect and prevent foreign matters with a diameter greater than 12.5mm from falling into the equipment

Level 3: it can protect and prevent foreign matters with a diameter greater than 2.5mm from falling into the equipment

Level 4: it can protect and prevent foreign matters with a diameter greater than 1.00mm from falling into the equipment

Level 5: dust cannot be completely prevented from entering, but the amount of dust entering shall not affect the normal operation of the equipment and safety

Level 6: completely dustproof

Waterproof test

[project introduction]

There are waterproof test requirements for portable, outdoor and automotive electronics. In the world, whether IEC, mil, ETSI or SAE, there are corresponding test requirements.

Iec/en60529 waterproof is divided into 9 grades (grade 0 ~ grade 8), waterproof grade (e.g. ipx4- waterproof grade 4):

Level 0: completely waterproof without protection

Level 1: dripping water in the vertical direction shall have no harmful effect

Level 2: when each vertical surface of the shell is inclined within 15 °, vertical dripping shall have no harmful effect

Level 3: drench water within 60 ° of each vertical plane without harmful effects

Level 4: splashing water in all directions of the shell has no harmful effect

Level 5: spray water in all directions of the shell without harmful effects

Level 6: spray water strongly in all directions of the shell without harmful effects

Level 7: the water inflow of the shell will not reach the harmful level after immersion in the water with the specified pressure for the specified time

Level 8: according to the conditions agreed by both the manufacturer and the user (which should be more severe than level 7), the water inflow of the shell will not reach the harmful level after continuous diving

IK level test

[project introduction]

For the application of IK code, the degree of protection is generally applicable to the overall enclosure. If some parts of the enclosure have different degrees of protection, the corresponding degrees of protection shall be marked. If the relevant product committee decides to require the marking IK code, the marking requirements shall be specified in detail in its relevant product standards. The product standard shall also specify the marking method used in the following cases: 1 The protection grade of one part of the same shell is different from that of other parts; 2. the installation status will affect the degree of enclosure protection.

[business scope]

1. Computer: computer, display screen, host, computer components, medical equipment and other precision instruments

2. Electronic communication: mobile phones, RF devices, electronic communication components, etc.

3. electrical appliances: household appliances, lamps, transformers and other electrical appliances;

4. others: packing cases, transportation equipment, etc.

[characteristic number of IK code and its definition]

Correspondence between IK code and its corresponding collision energy f:

IK code ik00 iko1 ik02 ik03 ik04 ik05 ik06 ik07 ik08 ik09 ik10

Collision energy / / J A 0.14 0 2 0.35 0.5 0. 7 1 2 5 10 20

Note 1: if higher collision energy is required, 50J is recommended,

Note 2: some national standards use one digit to represent the specified collision energy. In order to avoid confusion with it, the characteristic digits are represented by two digits.