Recent content by Dalit

Coating is additional cost, for mass production every extra dime makes it problematic. But I guess there are no easy get a ways here. Thanks!

Conformal coating is very expensive to apply on a large scale PCB. I am looking for something I can implement when designing the cabinet. For example, door geometry that will drain the water drops in such a way I can control and prevent them from spreading all over. I can even add a part in...

Junglist, it seems that you don't recommend on that idea. Are these space filler are removable?

The solution implementation can't be electrically controlled. I am sure all the electrical cabinet on the streets have the same problem, I wonder what is the solution there. Is it special coating on components, drain or what ever…?

This is not afeasible idea. I am very much aware of that. The cost for constant heating the internal volume of a cabinet will be enormous. I can not avoid the condensation problem, therefore I am trying to design the cabinet to comply with humidity and water drops. I am sure there is a...

That way I might solve the condensation problem, but start a new problem of heat inside the cabinet, which might damage the components inside.

Shouldn't the temperature inside the cabinet be below the ambient temperature?

MATLABdude, thank you for the file. The cabinet is not tough to crack as much as I want to keep it low maintanance. I don't want to open it every other day. The cabinet is sealed in some level, but I can not remove (vacuum) the air trapped inside the "box". Weather changes will condense the...

Bob, Silica-gel is not a long term solution for me, since I will have to change it in a regular bases, it is not very easy to open the cabinet. It's like an out-door electric cabinet. I wonder what is their solution for humidity inside the cabinet.

MATLABdude, what do you mean by weather seal? The cabinet can not be sealed, but the problem is with the air trapped inside the "box". Hot/cold weather will cause air to condense inside, and I am trying to minimize the problem causes by the water drops accumulating inside the box. I am not...

I can not ensure the atmospere inside a cabinet. I will have to use cooling system all year long. That would be very expensive. I would like to chanel the water drops, after being condensed, in a pre-designed chanels. I am sure electric cabinet, installedout-door, have the same problem, or...

Does anyone know what is the equivalent UL level for FMVSS 302?

I have an out-door cabinet (with PCB) that over time is being damaged due to condensation (humidity). I would like to minimize these damages over time (corrosion, etc...) The cabinet is closed but not 100% sealed. Cabinet size is 80X20X20cm. How do I avoid the damages due to condensation of...

nvn, I don't follow your calculations. you said that "strain energy of U = 2540 N*m". you need the force at impact, Please advise how do you calculate it. you also mentioned that "the beam inelastic deflection (at a height of 500 mm) is 34.9 mm when your beam ruptures." How did you...

PCB, contactor, RCD... It's a smart pole. The Pole is wired to a main voltage source.