[Healeys] Headlight fusing - was Inline fuses

John Vrugtman javrugtman at htcnet.org
Thu Apr 21 19:12:56 MDT 2011


I've a more simple solution, don't drive at night!

On 4/21/2011 8:58 PM, Raymond A Carbone wrote:
> Hi All,
>
> After installing an alternator a number of years back, I installed three (3)
> relays on the inside of the access panel in the passenger wheel well to power
> my High/Low and Driving lights.  I Connected the relays directly to the Bat
> tap on the alternator with 10 gauge line and installed a 20 amp in-line fuse
> as a main.  I then placed 10 amp in-line fuses on each 14 gauge relay output
> lines to protect L/R High beam, L/R Low beam, and Driving light power.  To
> totally isolate the lighting system (Head Lights, Driving Lights, Tail Lights,
> Panel Lights) from all other circuits, I disconnected the light switch power
> line from the ignition switch and sourced a new power line just past the 20
> amp main.  Since standard wiring is much lower in gauge, power through the
> light switch to the tail, panel and dip switch is protected by a separate 10
> amp fuse.  Some may think this is overkill ...  maybe so. However, with the
> upgraded gauge wiring and fuse protection, I see no difficulty going to any
> upgraded lighting (i.e. 100W Head lights popular in Europe).
>
> Ray Carbone (64BJ8P1)


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