In the instance of the held open/closed switches I always note that under the switch. I always set them in the fail position of the valve. Not sure if that is typical or called out in a standard anywhere.
Jeff
Thank you all for the responses. You have confirmed that I know a little bit of what I am talking about anyway. Xnuke, thanks for the excerpt of IEEE 315.
I think that my customer may not exactly understand that they are only looking at a wiring schematic and not a trip logic diagram or alarm...
I have a customer that continues to comment that I need to be showing my devices in the "alarmed" state on my control panel schematic. I have always understood that on schematics, devices were shown in the powered off / shelf state. Is there a standard / recommended practice / publication that...