International protection or IP according to Iranian standard 2868 and IEC529

International protection or IP according to Iranian standard 2868 and IEC529

What does the word IP mean?

Based on Iranian standard 2868 and IEC529

Degree of protection of sensors and instrumentation devices in terms of penetration of water and foreign objects as well as resistance to external shocks based on IP number according to Iranian standard 2868 is classified as coating grades in electrical appliances or IEC529.

The letters I and P mean international protection and stands for International Protection, which comes with a 2-digit or 3-digit number.

– The first digit indicates the protection of persons against contact with electrical parts and the intrusion of foreign objects.

– The second digit is a characteristic of the degree of protection of persons against water intrusion.

– The third digit indicates the degree of protection against impact or impact of foreign objects on the device.

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The first digit indicates the protection of persons against contact with electrical parts and the intrusion of foreign objects.

Number 0: Unprotected

Number 1: Protection against hard objects larger than 50 mm

Number 2: Protection against hard objects larger than 12 mm

Number 3: Protection against hard objects larger than 2.5 mm

Number 4: Protection against hard objects larger than 1.5 mm

Number 5: Dust protection

Number 6: Impenetrable to dust

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The second digit is a characteristic of the degree of protection of persons against the infiltration of water.

Number 0: Unprotected

Number 1: Protected against water dripping

Number 2: Protected against water dripping with a deflection angle of up to 15 degrees

Number 3: Protected against water splashes

Number 4: Protected against water secretion

Number 5: Protected against water eruption

Number 6: Protected against sea waves

Number 7: Protected against immersion in water

Number 8: Protected against sinking in water

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The third digit indicates the degree of protection against impact or impact of foreign objects on the device.

Number 0: Unprotected

Number 1: Protected against a 0.225 joule impact

Number 2: Protected against a 0.375 joule impact

Number 3: Protected against a 0.5 joule impact

Number 4: Protected against a 2 joule impact

Number 5: Protected against a 6 joule impact

Number 6: Protected against a 20 joule impact

Some examples:

1- What does it mean to be equipped with IP 54?

Response :

Number 5 is its protection against dust

The second 4 numbers are protected against water secretion

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2- What does it mean to be equipped with IP 67?

The first number 6 indicates that it is impervious to dust

The second number 7 is protected from immersion in water

Thank you