---------- Forwarded Message ----------
From: Chris Duprés, 100014,3703 TO: Christian Martí, INTERNET:[email protected] DATE: 14/12/99 18:36 RE: Copy of: GROUND COLOR CODE FOR CE MARK (EN60204-1) Hi Christian. You asked. <What color must be cables that are connected to ground because they need to be referenced to ground, but are NOT protective earth wires? (ex: secondary of a transformer,...that´s what I think is called functional equipotential conections )> My interpretation of the scene is that ALL wires that are there to provide a path for fault currents for the purposes of protective grounding, should be green/yellow, and should be given their own terminal. Any other wires, whether analogue reference grounds, screening, power returns, anything, should be the colour most related to their purpose. E.g. if the wire carries an a.c. control voltage common, then red. If the wire carries a d.c. control or power return, then blue. If an analogue reference then black. etc. etc. I do not expect to see different colour wires on one terminal post. Just an opinion, and the way I've been doing it for years. Chris Dupres Surrey, UK. --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators).
