I guess I don¹t see an issue with a spring-loaded finger. The operation
would be very much like the switch that controls lights in an automobile
when the door opens. It only need make contact when door is fully closed.
Ken Javor
Phone: (256) 650-5261
From: Frank Tang
Date: Fri, 17 Jun 2022 00:
Hi Ken,Yes, this is is regarding safety, we are not seeing EMC issues on
previous design.This is something I didn't consider because of the door size
(~3ft x 7ft) and weight (about 30 lbs) and the depth these spring-loaded
captive “finger” have to be.
--
Thank you and best regards.
- Frank
Hi Mark,Thank you for your response, I will have to revisit using gaskets and
if there is enough force to have good contact once the door is in place because
there is no locking feature, since the panels are seated in to slots on the
frame.The original design does utilize long ground cables, but
I¹m just curious why something like a spring-loaded captive ³finger²
couldn¹t be in contact with the door/plate when installed. I¹m assuming
here the grounding is for safety, not EMI. In the latter case, the gasket
approach is necessary. Also, for safety I don¹t see the gas-tight spot as
an issue
>From my knowledge, the access panel will need a ground conductor or metal to
>metal contact. The second is more tricky as there can be no electrical
>components on the panel and no possibility of a live conductor touch it.
I would find a way to keep the ground conductor connected but maybe con
Hi Frank,
Can you do a longer ground that allows moving the cover to the side? In my
experience it is risky to design a system where the ground is routinely
disconnected. If you need to design it that way, I recommend using a braided
gasket that is partially compressed when the panel is instal
Hi All,In the past we have typically done a stud and nut grounding for
removable lift-off access panels, but this is an inconvenience to disconnect
the ground cable.
What are other methods for grounding large panel doors (3ft x 7ft) if any?
--
Thank you and best regards.
- Frank
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We have received a GS certification that states an applicable standard, VDE
0620-1 : 2016 + A1 : 2017 that is invalid and replaced by 2021 version. Is
there any transitional period from 2016 version to 2021 version? Your
guidance is appreciated!
Thanks and regards,
Scott
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