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Re: Lucas fuses

To: "Mark Gendron" <mgendron@speakeasy.org>,
Subject: Re: Lucas fuses
From: "Ptegler" <ptegler@gouldfo.com>
Date: Wed, 20 Sep 2000 13:39:04 -0400
SIMPLE TERMS  - DIFFERENT ERA   DIFFERENT STANDARDS      :-)

...olden days
17 / 35 amp =  17 continuous hold - 
should hold a peak continuous 17 amps for 1 hour before blowing 
35 amp spec = 10 seconds  to instant blow rating

....now a days
20 amp = should hold a peak continuous 20 amps for 1 hour before blowing
instant blow is usually spec'ed as a % of stamp value. 
IE:  200% = 10 second hold,  400% instant blow
Note:   Typical fuses of today are much more sensitive to in rush current 
( such thing as cold lamp filament current))




----- Original Message ----- 
From: "Mark Gendron" <mgendron@speakeasy.org>
To: "David Massey" <105671.471@compuserve.com>; "Chris De Wet" 
<DeWetC1@sapo.co.za>
Cc: <triumphs@autox.team.net>; <spitfires@autox.team.net>
Sent: Wednesday, September 20, 2000 12:42 PM
Subject: RE: Lucas fuses



Ok, I think I got into this conversation a bit late. Are the Lucas fuse
ratings not directly equivalent to modern fuse ratings? What's the story on
this? Has the concept of an Ampere changed in the last few decades?

-----Original Message-----

Message text written by Chris De Wet
>What are today's equivalent of the Lucas 50 and 35 amp fuses ?  TIA
<

Use 25 and 20 respectively.


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