ENGINEERING.com has updated it's forum.  To post a question please visit the new Ask@ Forum.   

With a database of over 10000 questions the library will remain available for an extended period.
Q&A


spacebas		 IP Rating Relationship to Humidity Tolerance. View All
If a component has an certain IP rating can a humidity tolerance be derived from that IP rating? I'd like to know if a component that provides an IP rating of IP 67 could tolerate 100% non condensing humidity conditions. Also more generally, I'd like to know if there is a correlation between IP ratings and humidity tolerance.
15 years ago - 2 weeks left to answer. - 2 responses - Report Abuse
Respond to question
    0      [lnkReport]        0       0       
Share |
  Responses

Mike McGregor
 Not really. IP67 means the enclosure can withstand total immersion up to 1m. But ratings of 4 or less allow movement of air in and out. Also humidity is temperature related, so 100% of saturation level at one temperature is less at a higher temperature. So on its own, the humidity level does not give the water vapour content and Volume per volume woud be a more meaningful measure.

15 years ago

Source:


  0     0         

Niel
 The quick answer is No. There is not a correlation between IP rating and humidity tolerance.

IP rating indicates how well the housing is able to with stand intrusion of dust or liquid water. It says nothing about the ability for the product to withstand high moisture environments.

IP67 indicates that the housing is protected from both dust and immersion down to 1 meter.

Water vapor can still permeate though the case and effect the components inside if the case is made of plastic.

With this said it is possible for the reduce the issues with moisture intrusion and water vapor in the micro-environment of the housing created by the case. This is accomplished with desiccants or back filling with dry nitrogen.

Remember once a seal case is achieved it is possible to have condensation occur once the a saturation conditions are reached. In IP67 cases there is no easy exchange air once the case is sealed.

What are you trying to do?

Why are you concerned about the need to tolerate a 100% non-condensing situation?

15 years ago

Source: http://www.carryitcases.com.au/category249_1.htm


  1     0         

ENGINEERING.com does not provide engineering advice. The Ask@ service is a forum for members to exchange ideas relating to the world of engineering. We caution users not to accept any responses that they receive without further validation, and not to rely on any engineering advice that they may get from other members of the Ask@ forum. ENGINEERING.com specifically disclaims any obligation to validate or verify any information posted within the Ask@ service. ENGINEERING.com encourages users to seek the services of a professional engineer for any engineering advice they may require.