Re: [PSES] External toothed star washer used in earth connection

2018-08-11 Thread Scott Xe
Dear Rich, Deeply appreciate your detailed explanation! Regarding gas-tight connection, it seems to have some conflicts or my mis-interpretation. I take an example below:- *Using split ring lock washer to establish gas-tight connection* Screw head -> one side of metal enclosure (it has paint

Re: [PSES] External toothed star washer used in earth connection

2018-08-11 Thread Scott Xe
Scott, Thanks for your sharing experience on this matter! What is the purpose for the second star washer? Double protection on top of the first one. The star washer is a very essential part for the success of good earth the metal enclosure. Regards, Scott On Sat, 11 Aug 2018 at 02:11,

Re: [PSES] External toothed star washer used in earth connection

2018-08-11 Thread Doug Powell
As I see it, the star between the lug and the sheet metal is for for conductivity.  The star above the lug is for mechanical securement.  It is therefore possible to use additional techniques for mechanically securing the fastener; SEM screws, KEP nuts, jam nuts, etc. If you think about the path