[Spridgets] Fuses, it's a Lucas thing.

Billy Zoom billyzoom at billyzoom.com
Fri Jun 17 18:48:07 MDT 2016


From wikipedia, of all places:
Lucas <https://en.wikipedia.org/wiki/Lucas_Industries> type fuses are used in old British-made or assembled automobiles. The physical length of this ceramic type of fuse is either 1 inch or 1.25 inch, with conical ends. Glass tube fuses have straight ends. Lucas type fuses usually use the same color-coding for the rated current. Lucas fuses have three ratings; the continuous current they are designed to carry, the instantaneous current at which they will fuse, and the continuous current at which they will also fuse. The figure found on Lucas fuses is the continuous fusing current which is twice the continuous ampere rating that the system should be using; this can be a source of confusion when replacing Lucas fuses with non Lucas fuses. The Lucas 1/4" diameter glass tube fuse have a different length as compared to the standard US item. The Lucas 1/4" diameter glass tube fuse is 1 and 5/32" [~29.4 mm] long, while the US standard 1/4" glass tube fuse is 1 and 1/4" [~32.0 mm] long.
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