Cambridge Fuse Question

. I have looked in the appropriate
manuals for the proper fuse size but can not find anything.
Can anyone help me with this?


Seem to remember from A&P school that a fuse is there to protect the
wire and not the component. If you know the current draw of the
component, AC43.13-2 will help you with wire size needed and the
recommended fuse size for that wire. On the same note, your
instructions probably call for a particular wire size. Use the fuse
recommended for that size wire.

I'm on the road, or I'd look it up for you. Anyone else have a copy
of the AC?


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Seem to remember from A&P school that a fuse is there to protect the
wire and not the component.

this is certainly true in an automobile because the cost of replacing
the wiring may be much more than the cost of replacing the component. In
sailplanes, the wiring is trivial to replace and I choose to protect the
expensive component instead.

Tony V.

Tony Verhulst wrote:

Seem to remember from A&P school that a fuse is there to protect the
wire and not the component.


this is certainly true in an automobile because the cost of replacing
the wiring may be much more than the cost of replacing the component. In
sailplanes, the wiring is trivial to replace and I choose to protect the
expensive component instead.

When you protect the wiring, you are protecting the "expensive
component" - the glider! A wire fire is always exciting, as the smoke
creeps out around the edges of the panel... But practically speaking, a
fuse that protects the 302 will also protect the wiring, unless you are
using _much_ smaller wire than normal. I vaguely recall that the 302 has
an internal self-resetting fuse - a call to Gary K at Cambridge would
discover the truth.


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Eric Greenwell
Washington State
USA