![]() There ARE standards on this, all (that I have seen) of which contradict what some people are used to and have been doing for years. This is / has been / will be an endless debate. RE: panel indicator color scheme ScottyUK (Electrical) 10 Apr 08 10:26 I am sure that there are very specific and strict guidelines for critical facilities such as power plants, military installations and the like, but I am not familiar with those. Again it does not matter in many instances, how you define these as long as you are clear. Engine controls would be similar and would also include amber indications for low oil, high temperature, and other such warnings. MCC's traditionally indicate red for motor "off" and green for motor running. And where any system experiences a failure or is off, then the indication is red. When there is a trouble alarm or warning, there is an amber indication. One such is that a "Green board" uses the logic that when all systems are operating normally, all indicators are green. There are traditional color schemes that are specific to different industries and operations. I am not sure what exactly a "light plant" does, but in many cases in commercial applications you can define the color scheme however you want. Rick Miell RE: panel indicator color scheme EEJaime (Electrical) 10 Apr 08 10:21 The same operator who will be opening and closing feeder breaker or putting generators online will be starting and stopping motors from the MCC, so I would like to make the indicators all mean the same thing, if possible. Is red usually used for off indication on MCCs, or should this light be amber instead? I am not sure of the standard colors for this, but I think green is usually used for a run indication. Each starter has indicator lights on it's face, with Power on/motor off = Red and Run = Green. Now comes my major problem: In the same light plant, there are a number of motor controller centers, with motor starters installed in them. I am looking into replacing all of the lamps with LED lamps, and I would like to correct the color scheme at the same time. We have a new (2007) substation which uses this color scheme for it's indicators. I believe that the colors should be as follows: Breaker ON= Red light, breaker OFF = green light, using the logic of if the breaker is on, red cautions you not to approach the breaker, while the green tells you it's ok to approach the breaker if it is off. Right now the generator section, as well as the circuit feeders out of our light plant have panel indicators on breakers and controls as follows: Breaker ON, amber light, breaker OFF, green light with a 2nd light that has been added that is red if breaker is off. I need a little guidance on a project I want to complete for our ageing light plant.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |