SUPLAN is Belgian drawing software for electricians. Draw the site plan with electrical symbols, build the distribution board, and get the single-line diagram from it, for everyday work under the Belgian wiring rules (AREI/RGIE). It runs in the browser and on iPhone, iPad and Mac, in Dutch and French. 7-day free trial. SUPLAN helps prepare the file; the official inspection is carried out by an accredited body. Made by SUPCON BV, Keerbergen, Belgium.