jlj
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For an IP67 rating (http://en.wikipedia.org/wiki/IP_Code), an electrical enclosure must be submerged to 1m for 30 minutes with no water ingress.
A basic test setup is shown in Fig A with the EUT ( Equipment Under Test) placed at the bottom of a tank.
An alternative test setup was proposed to me, as shown in Fig B.
This setup has a thin pipe into a closed chamber, with the same overall depth of water.
I want to say that the pressure on the EUT is the same with the two setups, but my intuition says otherwise.
So, does Fig B result in the same water pressure on the EUT as Fig A? Why?
A basic test setup is shown in Fig A with the EUT ( Equipment Under Test) placed at the bottom of a tank.
An alternative test setup was proposed to me, as shown in Fig B.
This setup has a thin pipe into a closed chamber, with the same overall depth of water.
I want to say that the pressure on the EUT is the same with the two setups, but my intuition says otherwise.
So, does Fig B result in the same water pressure on the EUT as Fig A? Why?
