[Healeys] Lucas headlights

[Larry Varley]

Headlamp relays are not that modern, it's not a good idea to use fused 
standard relays on headlamp circuits, as you risk the possible loss of 
headlamps at the worst possible moment. Many old cars didn't use fuses 
on headlamp circuits for this reason. The problem isn't the relay, it's 
the fuse. So if people want to use a relay on a headlamp circuit, a 
proper headlamp relay should be used that has the bi metal overload so 
there is no total loss of headlamps in the case of a short circuit.
Cheers
Larry Varley

On 5/04/2012 9:53 PM, Oudesluys wrote:
> What we are talking about is the standard relays, not the modern head 
> lamp relays.
> Kees Oudesluijs
> NL
>
>
> Op 5-4-2012 12:19, Larry Varley schreef:
>> Something that I think seems to be missed here, is that a headlamp 
>> relay is generally a special relay with thermal overload rather than 
>> a fuse. Do you really want your headlights to decide to go off while 
>> driving at speed on a winding road? A proper headlamp relay will 
>> flash the headlights on and off if there is a problem in the wiring, 
>> as the thermal switch in the relay opens and closes contacts. Food 
>> for thought.
>> Cheers
>> Larry Varley
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