The Attribute Templates AT_HP_PW.dwg and AT_VP_PW.dwg have an incorrect default TAG1 value in the JIC and NFPA libraries. The standard class designation letters for a power supply are PWS, not PW, according to Annex E of NFPA-79. Each time a designer/engineer must create a power supply the letter "S" has to be added to the default of PW in order for the auto-tagging feature of AutoCAD Electrical to tag the power supply correctly.
