Friday Fun: Fuse Replacement Guide

Funny meme
Do not do this!
https://me.me/i/guide-to-fuse-replacement-guide-to-fuse-replacement-350-amp-3014307

13 Comments

  1. Tomi Engdahl says:

    “fuse is useless” ..and stupidity is limitless

    Reply
  2. Tomi Engdahl says:

    Main fuse was a Nail, Electrician
    https://www.youtube.com/watch?v=IUL-w04ubAs

    Back in the unit to see what happens when a nail is used as a main fuse which I have seen personally on a job,

    Now you know why welders wear masks/goggles !

    Reply
  3. Tomi Engdahl says:

    Popping a 5000A Fuse
    https://www.youtube.com/watch?v=0mGhhdPgXG8

    The fuse itself was purchased from eBay from the U.S.

    Reply
  4. Tomi Engdahl says:

    Lucas Replacement Wire Harness Smoke
    https://www.orarc.org/?p=2348

    Thought this might be worthy of dissemination. A bottle in every ham shack, I wonder if they make a negative earth version?

    Reply
  5. Tomi Engdahl says:

    Shay Russell Louis Rossman did a video about fuse problems a while back. Generic Chinese fuses often would fail to blow at 4 and 5 x overload

    https://youtu.be/B90_SNNbcoU?si=MJEP1blJPKGZjYT4

    It’s been a problem for years: https://money.cnn.com/2007/09/05/autos/fuse_recall/

    So when the fuse refuses to fuse, do you need to re fuse the whole thing?

    Reply
  6. Tomi Engdahl says:

    Common Metals Used in Fuses

    ​Zinc: One of the most common metals for automotive fuses (blade fuses) and low-voltage applications. Zinc has a relatively low melting point (419.5^\circ\text{C}), provides good electrical conductivity, and is highly resistant to corrosion when exposed to air.
    ​Copper & Silver-Plated Copper: Widely used in industrial, high-current, and high-voltage fuses. Copper conducts electricity exceptionally well. It is often plated with silver to prevent oxidation, which can degrade the fuse’s performance over time.
    ​Silver: The gold standard for high-performance, fast-acting fuses (such as those protecting sensitive semiconductor electronics). Silver provides outstanding conductivity and does not oxidize as easily as bare copper, ensuring the fuse’s rating remains precise over years of service.
    ​Tin or Lead-Tin Alloys: Historically common, and still used in specific low-melting-point applications (like traditional plug fuses or glass tube electronics fuses). Tin melts at a very low 232^\circ\text{C}, allowing the fuse to interrupt the circuit at lower temperatures before surrounding components can overheat.

    Reply

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