V3 - Protective Earch Connection
we received three prototype switches from 7Sols for "experimental use". We have asked two people at GSI to have a look at the switches from the point of view of electrical safety. Here is their report.
- Connection Missing. The metallic housing must be directly connected with PE, usually using a earth bolt at the housing. The connection must be marked with the "earth symbol" or a label “PE”.
- Connection of Cover. The metallic cover must have a low resistive connection to PE (e.g. to the earth bolt of the housing)
- Coding. PE connections (cables) must be achieved in “green-yellow” color.
- SUB-D Connector. The housing of the SUB-D connector is not connected to PE. It should be connected.