I'm building an LED curtain, and trying to make it as safe as I can in limited time.
We're using WS2812B strips driven off 3 Fadecandy boards.
I've got 3x Mean Well RSP-150-5 AC-DC PSUs (Datasheet: http://www.farnell.com/datasheets/2547987.pdf ) going in the box, on the plate as shown. The box will be fed with a fused, filtered, switched, panel mount IEC inlet. The box is plastic, any metal in it will be bonded to the plate in the picture.
I'm planning on connecting earth from that inlet directly to the mounting plate.
The power supplies are screwed directly to the plate.
Is this right?
Should I connect the earth screw terminal of each power supply to the same bond point used to connect the earth from the IEC inlet?
Should I connect all -V rails on the PSUs together? They'll be connected in the USB hub/host anyways, should I give them a beefier connection in common elsewhere?
Should I connect all -V rails to the protective earth?