Unknown fuse class
Unknown fuse class
(OP)
I am dealing with some very old fuses in some 220V lighting panels. All I can read on the in Trico renewable fuses. CM-5. and thats about it. I am doing a load study because a very small dry type transformer burned up and we think it is because it was over fused, (more than 250% on the primary side as well as the secondary side...) any ways, any of you old timers familiar with "TRICO" fuses?






RE: Unknown fuse class
RE: Unknown fuse class
RE: Unknown fuse class
RE: Unknown fuse class
There are requirements in NEC Article 450 as well.
RE: Unknown fuse class
RE: Unknown fuse class
RE: Unknown fuse class
Bill
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"Why not the best?"
Jimmy Carter
RE: Unknown fuse class
RE: Unknown fuse class
A tip from the days, generations ago, when we thought renewable fuses were great.
We had so many fuse failures that each MCC had a cabinet on the end with an assortment of replacement links.
We tried NON fuses and our fuse replacements were decimated.
I have found replaceable fuses to be unreliable and prone to failure.
I would be tempted to use 65A to 80A NON as equivalent to 100A renewables, with a high uncertainty factor, for a simulation.
Does this sound reasonable, dcp?
Remember that the rating on the barrel is the maximum, but they were typically fused at the maximum. Also, double linking was some times used.
Bill
--------------------
"Why not the best?"
Jimmy Carter