Hi can you guys point me in the direction of free IEC electrical symbols, I've checked a few sites out and haven't been able to find just what I'm looking for. really wanting to set up a drag and drop system within AutoCAD 2002 LT, have found a few packages but don’t want to purchase / purchase...
Help, We are trying to filter out a switching frequency (used to switch street lighting and control domestic hot water), we have some electronic lighting dimmers (echelon network based) that are being affected by the previously mentioned "ripple" frequency (the lights they control are...
