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LF: Re: FUSE TEST

from [Ken] [Permanent Link][Original]
To: <[email protected]>
Subject: LF: Re: FUSE TEST
From: "Ken" <[email protected]>
Date: Fri, 4 Dec 2009 20:22:21 -0000
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The ceramic fuses in 13A plug tops usually have a 100% overload capabiliy, this was also the case for some of the BT fuses.
 
Ken
de M0KHW
----- Original Message -----
To: rsgb
Sent: Friday, December 04, 2009 4:30 PM
Subject: LF: FUSE TEST

Has anyone tested the ACTUAL blow current for fuses eg 5A 10A 30A..
I often do not have fuses at the correct value and FUSE down only to find that I can run them at considerably higher amps than rated eg 30A fuses at 50A and they fail to blow. This is intermittent use say 30% - 50% in psu's used for CW and QRS3 normally in FET AMPS
This is normal fuse wire bought wrapped on card.
It looks like your PA fets could be in trouble under certain circumstances.
 
de mal/g3kev
 
 
 
 
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