This month's lessons learned/ topic discussion is Sensing lines for Scada (Supervisory control and data acquisition). The first thing is even though the lines are normally stainless steel they must be cathodically protected if a portion of the sensing line is under ground. It is really important that the correct insulators are used for the isolation, they have to have the right pressure and electrical rating, if the insulator keeps failing due to lightning strikes, a SSD might be needed. A lot of the lines are directly connected to eletrical equipment, for the SCADA so a SSD might be needed for that application. Because the Sensing lines are stainless my company normally does not paint them, however atmospheric surveys should be done on the lines.
Hopefully this post can prevent some future headache or fines, if anyone has anything related to this post, I would love to hear it.
Thank you
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Richard Flowers
Atlanta Gas and Light
Sandy Springs GA
+17064249197
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