Replace Fuses with Higher Ratings: True or False?

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Homework Help Overview

The discussion revolves around the implications of replacing a blown fuse with one of a higher rating, specifically in the context of electrical circuits and safety. Participants are exploring the reasoning behind fuse ratings and the potential consequences of altering them without proper analysis.

Discussion Character

  • Conceptual clarification, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Some participants question the generality of the statement about replacing fuses, considering whether the original fuse was too small or if there is an underlying issue in the circuit causing the fuse to blow. Others emphasize the importance of understanding the circuit before making changes to fuse ratings.

Discussion Status

The discussion is active, with participants providing insights on the risks of simply increasing fuse ratings without investigating the cause of the problem. There is a recognition of the need for a thorough evaluation of the circuit, although no consensus has been reached on the original question.

Contextual Notes

Participants note the lack of specific information regarding the circuit in question, which complicates the discussion about the appropriateness of changing fuse ratings. The original poster indicates that this is a homework question, which may limit the depth of their inquiry.

Curious314
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Homework Statement


If a fuse repeatedly blows, it should be replaced by a fuse of one step higher rating.
true or false?


The Attempt at a Solution



this is because there is too much current in the circuit and it does need to be replace with one of higher capacity? then true?

Thanks!
 
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First, find out why a properly-sized fuse keeps blowing. The fuse is there to protect the circuit, and simply substituting that fuse with higher and higher rate ones subverts that protection.
 


that makes a lot of sence, but I still believe that the question is too generic, because I'm not sure if it is because the fuse is originally too small or there is a problem with the circuit that causes the blowing.

thanks anyway turbo
 


You need to look at the entire circuit, Curious. Simply subbing in bigger and bigger-capacity fuses is not a good idea, unless you want to sacrifice the circuit in question. Do you have access to a decent multimeter, and can you evaluate circuits?
 


well is a question for my homework, so all i have is this:

If a fuse repeatedly blows, it should be replaced by a fuse of one step higher rating.
true or false?

I don't have further information
 


Curious314 said:
well is a question for my homework, so all i have is this:

If a fuse repeatedly blows, it should be replaced by a fuse of one step higher rating.
true or false?

I don't have further information
Why is this bad practice? (replacing a fuse by one with 1 step higher rating)

You're likely to start an electrical fire.
 


Curious314 said:
well is a question for my homework, so all i have is this:

If a fuse repeatedly blows, it should be replaced by a fuse of one step higher rating.
true or false?

I don't have further information
I gave you the correct answer. You can't keep jumping fuse values without finding out why the fuse is blowing. You can cause trouble that way.
 


thanks to both of you :D
 

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