A programmable language for clearing procedures

Detailed clearing procedures and written switching instructions, together with a single line diagram, must be used in order to perform maintenance operations on a working zone (WZ). Previous papers of the authors have introduced a graphical representation, a color convention and a logic code to facilitate programming. This paper advances the above techniques through the "Parise Program", which is offered as a faster, easier way to establish lockout procedures. A software program using a PC, based on the model in this paper, has been developed. A software program using a PC, based on the model in this paper, has been developed