how to compute for fuse amperage?

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Andrew,

At the bottom of the SMILIES box, in the reply window/page there is a link, "[Get More]". A second window will pop up and you can stretch it out larger.

I have memorized some like:

:drink:

:spin:

:headbash:

Use colons instead quotes around the name of the smiley.

😉
 
Not so fast jarthel... the first method was 'bout measuring a VOLTAGE across a RESISTOR in series. The second method is about placing the meter series and directly measuring the current.

🙂
 

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Hi billdinva,
how to compute for fuse amperage?
Mains here is 220-240VAC 50/60Hz.
current load of the system
Won't work. I have my doubts on the 0.2% accuracy thing too.

For fusing a low power transformer, try a slow blow at the rated amps of the primary as a starting point.
That's been suggested earlier, I disagree. There is already a thermal fuse for that. You want to protect against abnormally high current for the circuit. It's not that difficult to figure out.

-Chris
 
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