Does anyone know the low voltage directive requirements for fastening isolated TO-220 packaged FETs with their tabs at 240VAC onto a heatsink that is earthed. The FETs are IRFI830G and according to IR data are isolation tested to 2.5KV (60s at 60Hz). Do I need an extra layer of insulation ie: SIL pads and nylon washers and if so, at what clearances and voltage ratings? Paul Ross, Lizard Electronic Developments Ltd, Cornwall, England. *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * ***************************************************************************