Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

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Yes (more info & ideas...)

Posted by Duster (M) on June 2, 2007 at 09:06:05

In Reply to: Suitable for plastic boxes? posted by RioTubes on June 1, 2007 at 20:52:13:

Hi RioTubes,

I don’t think it matters if the wall box is metal or plastic, since I believe the primary benefit of a wall plate such as this is to provide a level of vibration/resonance control rather than to address EMI/RFI issues. When compared to a typical flimsy wall plate, I think a very solid wall plate such as this simply offers a more rigid mounting system for an AC outlet (a firmer foundation) which improves the mechanical aspects of an AC outlet’s electrical performance -- it may improve the inherent ability of a high-performance-designed AC outlet to address vibration/resonance issues. A backing or facing of the wall plate with carbon fiber material may be of benefit regarding EMI/RFI issues.

The way I installed my particular wall plate was in a manner that provides the most rigid interface between the *front* of the SWO-XXX AC outlet and the *drywall surface* rather than between the AC outlet and the wall box as is the norm... meaning, I loosened the AC outlet’s two mounting screws fastened into the wall box just enough so that “the primary grip” takes place between the drywall surface and the edges of the wall plate; the screw at the front-and-center of the AC outlet body does “most of the mounting work”. Again, this method allows the rigid wall plate to have a firm grip on both the center of the AC outlet’s body and the drywall rather than via the AC outlet’s backstrap and the wall box.

Another method perhaps worth exploring would be to mount the AC outlet directly to the die cast zinc wall plate: First, drill two holes through the wall plate exactly where the AC outlet’s backstrap mounting holes are positioned, then firmly mount the AC outlet directly to the wall plate via the center screw, then push the two backstrap mounting screws through the two holes and firmly secure the wall plate to the wall box. This method would perhaps provide the firmest interface between all elements involved.

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