Julixing Instruments

Julixing Instruments

 
Julixing Instruments

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Water Ingress Testing

Which is usually the second part of ingress protection (IP) specified in IEC 60529. The second characteristic numeral (such as IPx4) describes the degree of protection against ingress of water with harmful effects.

Water Ingress Testing

Table 1: Brief Explanation of IP Code

IP Code Description
Water Ingress IP x0 Non-protected
IP x1 Protected against vertically dropping water drops
IP x2 Protected against vertically dropping water drops, when enclosure is tilted up to 15°
IP x3 Protected against spraying water
IP x4 Protected against splashing water
IP x5 Protected against water jets
IP x6 Protected against powerful water jets
IP x7 Protected against the effects of temporary immersion in water
IP x8 Protected against the effects of continuous immersion in water
Ingress of Solid Foreign Objects IP 0x Non-protected
IP 1x Protected against solid foreign objects of 50mmØ and greater
IP 2x Protected against solid foreign objects of 12.5mmØ and greater
IP 3x Protected against solid foreign objects of 2.5mmØ and greater
IP 4x Protected against solid foreign objects of 2.5mmØ and greater
IP 5x Dust protected
IP 6x Dust tight

Table 2: Brief Comparison between IP Code and NEMA 250 Rating

Specification
IEC 60529 NEMA 250
Standard developed by International Electro technical Commission National Electrical Manufacturers Association (in US)
Ratings IP0x~IP6x, IPx0~IPx8 Type 1~6, 12, 13, 3R, 3S, 4X, 6P, 12K
Product standard No Yes
Applicable to Any enclosure Metal or polymeric enclosure for electrical equipment (1000V max)
Test protection against Ingress of solid objects Covered Covered
Ingress of water Covered Covered
Corrosion Not covered Covered
Construction requirement
Door and cover securement
Coolant effects
Effect of icing
Gasket aging and oil resistance
Translated to other rating? CANNOT be converted to NEMA type rating Only in some cases, such as
NEMA Type 2 → IP 22
NEMA Type 3, 3S → IP 55
NEMA Type 4, 4X → IP 66

    Standard:       IEC 61032 IEC 60061 IEC 60335 IEC 60529 IEC 60068 IEC 60695 VDE 0620 UL AS/NZS3112
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