Brief description of IP0 of Yashilin sand and dust test chamber: no protection;
IP1 brief description: prevent solid foreign objects with a diameter of not less than 50mm;
And its meaning: the test object of spherical object with a diameter of 50mm shall not enter the shell completely;
IP2 brief description: prevent solid foreign objects with a diameter of not less than 12.5mm;
And its meaning: the spherical object test tool with a diameter of 12.5mm shall not enter the shell completely;
A brief description of the IP3 sand and dust test chamber of the Yashilin brand: prevent solid foreign objects with a diameter of not less than 2.5mm;
And its meaning: spherical object test tool with a diameter of 2.5mm shall not enter the shell completely;
IP4 brief description: prevent solid foreign objects with a diameter of not less than 1.0mm;
And its meaning: the spherical object test tool with a diameter of 1.0mm shall not enter the shell completely;
IP5 brief description: dustproof;
And its meaning: dust cannot be completely prevented from entering, but the amount of dust that enters must not affect the normal operation of the equipment or the safety;
A brief description of the IP6 sand and dust test chamber of the Yashilin brand: dust tight;
And its meaning: no dust enters.
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