That's what seems implied on the aerolectric site, Tony. However, the
temp rating of Tefzel insulation is in the Mil-Spec, and it's _way_
short of cherry red, much less melting. Inside a fiberglass sleeve,
you could have a damaged wire and not know it. Not an airworthiness
concept I'm comfy with. Still, for what sort of low-current circuit
do we want this? Certainly not avionic$ or gyro$, or is this just to
save weight/cost on traditional devices?
Best,
Fred F.
Tony Krzyzewski wrote:
>
> Fusible wire links are OK on the lower rated stuff... protecting 20AWG wire
> with 24AWG etc but I wouldn't use it on the main feed. The heat generated
> while
> blowing a big fat wire would probably take out the insulation.
>
> I tried blowing links made out of 24, 22 and 20AWG. The 24 and 22 AWG burnouts
> were well contained by the fiberglass sleeve I am using while the 20AWG shows
> signs of browning on the sleeve. Based on this I chose not to use fusible wire
> links to protect any wire size larger than 18 AWG.
>
> The other thing is not to expect these fusible links to go quickly, they are
> very slow fuses so are really protecting against dead shorts.
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