Eurolight harness questions...

[Ti Kan]

Eyvind Spangen writes:
> On Tue, 24 Jul 2001 10:32:51 -0700 (PDT), you wrote:
> >One relay for the lows and one for the highs is sufficient, if you use
> >relays that have the appropriate ratings.  I run 90/100W H4s in my 4K
> >and 40A relays work just great.  Considering that at 12V, a 100W bulb
> >flows about 8.3A of current (x2 for two lights makes it 16.6A), I think
> >using a 30A relay would even be good enough.  If you use bulbs of lesser
> >wattage then it's a no brainer.
> 
> But what if one relay fails while driving in the dark? The lights
> would go completely out, and something bad could happen before you got
> to think about switching to low/high to get some light again.. 

Good thinking.  There is a benefit of using separate relays there.
However relays are used also for many other crucial car subsystems,
and they are not redundant.  The type of relays we're talking about here
don't have electronics in them and are fairly simple things.  As long
as they are protected against moisture, heat, corrosion, etc., and the
contacts are properly insulated then they should be quite reliable.

-Ti
01 S4 2.7 biturbo quattro
84 5000S 2.1 turbo
80 4000 2.0
-- 
    ///  Ti Kan                Vorsprung durch Technik
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