Duncan - Necessarily, using a larger fuse than is approved for the filter voids the original approval for the filter. However, as you have a specific application at hand, it is possible to use a larger fuse, given that the appropriate safety concerns are addressed in your end-product application. Component-level limitations are necessary for a limited, but broad range of use for a component. Expanding beyond that range requires investigating the suitability of the modifications for the new situation (i.e., your end product). This is something you can negotiate with the safety agency (for your end product).
Regards, Mark Gill, P.E. EMC/Safety/NEBS Design Nortel Networks - RTP, NC, USA > -----Original Message----- > From: [email protected] [SMTP:[email protected]] > Sent: Friday, June 23, 2000 5:24 AM > To: emc-pstc > Subject: Prefered Fuse Values > > > Group, > > I have an interesting problem with a mains filter and fuse. We have a > product with a 6 amp filter that can draw up to a maximum of about 5.8A. > The > filter has a built in 20mm fuse holder and we would normally fit a T type > HBC > fuse. > > The problem is that all fuses appear to be available in prefered values, > the > nearest of which being 5 (too small) or 6.3 (too large) > > I'm sure that this is not the first time someone has encountered this so > your > comments would be appreciated. Ideally we are looking for a 20mm 6AT HBC > fuse > with european and UL approval or recognition. Does anyone know where I can > obtain such a fuse? > > Many thanks is advance, > > Duncan Hobbs. > > > ------------------------------------------- > This message is from the IEEE EMC Society Product Safety > Technical Committee emc-pstc discussion list. > > To cancel your subscription, send mail to: > [email protected] > with the single line: > unsubscribe emc-pstc > > For help, send mail to the list administrators: > Jim Bacher: [email protected] > Michael Garretson: [email protected] > > For policy questions, send mail to: > Richard Nute: [email protected] > >
