bud-- wrote in news:F5_aE.11400$ snipped-for-privacy@fx05.iad:
system
It is not silver.
"Silver-sand" fuses can have a clearing time well under 1/4
I think you are guessing at the construction as well as the moment of fusing action.
All fuses are 'current limiting', ditz.
See above moniker attributed to you.
If you haven't heard of it it doesn't exist?
It is in the field I work in. I am very familiar how they are made.
The first google hit for "silver sand fuse" is
They are common when high interrupt capacity is required
"Current limiting" has a specific definition in electric power protection.
That is why I put it in quotes, ditz.
The peak current downstream is lower than if the fuse took 1 cycle to clear. They are "current limiting". That lowers magnetic forces and greatly lowers "arc flash" exposure to workers.
Keeping up the tradition of being "always wrong",
bud-- wrote in news:CC4cE.40701$ snipped-for-privacy@fx39.iad:
More like Since you were guessing at what you saw, I am confident that it was not solid silver, and that the error is yours (his, in this case)
Repeating what you deleted: It is in the field I work in. I am very familiar how they are made.
Why do you suppose the name is "silver-sand". It was in the link I provided.
"Silver" gives a small cross-section for the fuse-wire - it burns open fast. But then the wire is divided into many small silver wires in parallel. They burn open even faster.
"Sand" is around the silver-wire links. It helps quench the arc.
That can result fuses that are "current limiting", which is increasingly important including for safety of workers on electrical systems. ========================= With minimal google skills you could find
"PURE SILVER FUSELINKS Embody 'silver-sand' design 99.9% pure silver links; silica-sand filler. ... High degree of current limitation holds down fault currents and levels of destructive energy. (Although other link materials can provide current limitation, they do not equal that of silver.)"
"SAND FILLER High grade silica-sand filler Accelerates response of fuse to short-circuits by having quenching effect upon the fuse arc. Substantially contributes to current limiting action." =========================== That includes all the nifty words - "silver", "sand", and "current limiting".
Congratulations - you remain "always wrong".
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