making a fuse

Discussion in 'General Electronics Chat' started by ol'trusty, Mar 22, 2010.

  1. ol'trusty

    Thread Starter Member

    Sep 9, 2009
    48
    0
    Hello
    I am trying to find a way to make my own fuse out of a piece of wire.
    Nominal work amperage is 60A and I want the fuse around 90A .
    Can I achieve this with a piece of alluminium or copper wire?
    All that I have ever learnt about is how much current you can safely conduct through a wire usually because of isolation reasons.
    Can anybody shed some light ? How can I calculate at what amperage I wire will disconnect/melt/burn ?
    Help appreciated in advance
    Trusty
     
  2. blueroomelectronics

    AAC Fanatic!

    Jul 22, 2007
    1,758
    98
    Unsafe, just buy a fuse.
     
  3. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    Please do NOT try to make your own fuses, particularly for high-power circuits.

    When a fuse "blows", a white-hot plasma is produced; it is extremely hot.

    A properly engineered fuse keeps this plasma safely contained. It takes a great deal of testing with a wide variety of loads to ensure that a fuse will perform safely under all reasonable (even unreasonable) operating conditions.

    If you attempt to design your own fuse, you place yourself and your surroundings at great risk of harm by exposure to this extremely hot and rapidly expanding plasma.

    Please do not attempt it.
     
  4. ol'trusty

    Thread Starter Member

    Sep 9, 2009
    48
    0
    Thank you for the explanation Sgtwookie . I understand
     
  5. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
  6. The Electrician

    AAC Fanatic!

    Oct 9, 2007
    2,281
    326
    SgtWookie likes this.
Loading...