MV UNDERGROUND FEEDER LATERAL TAPS
MV UNDERGROUND FEEDER LATERAL TAPS
(OP)
Require fused sectionalizers?
always?
sometimes?
never? (not likely)
always?
sometimes?
never? (not likely)
When was the last time you drove down the highway without seeing a commercial truck hauling goods?
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MV UNDERGROUND FEEDER LATERAL TAPS
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MV UNDERGROUND FEEDER LATERAL TAPSMV UNDERGROUND FEEDER LATERAL TAPS(OP)
Require fused sectionalizers?
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RE: MV UNDERGROUND FEEDER LATERAL TAPS
RE: MV UNDERGROUND FEEDER LATERAL TAPS
RE: MV UNDERGROUND FEEDER LATERAL TAPS
You can place them in flush-mounted handholes rated for vehicular traffic.
If you are using elbow-style "T" connections for your taps, you should be able to add one of these fuses 'in-line'.
RE: MV UNDERGROUND FEEDER LATERAL TAPS
http://www.gwelec.com/pdfs/hotsplicerpdf/hsfuse.pd...
RE: MV UNDERGROUND FEEDER LATERAL TAPS
This is very common in MV distribution systems, specially underground feeders. I belive IEEE buff book also discusses this..I don't have one in front of me.
E rated fuses are desinged to open within 5 minutes at 200% of the E rated current. That is a 100E rated fuse will not not open at 100A or little more, but if it draws 200A it will open in 5 mins. Anything under that it takes forever to open , if at all. Refer to some MV fuse manufacutuer's application guides.
RE: MV UNDERGROUND FEEDER LATERAL TAPS
RE: MV UNDERGROUND FEEDER LATERAL TAPS
RE: MV UNDERGROUND FEEDER LATERAL TAPS
Mr. alehman, I am sorry that I did not at first fully comprehend you statement about fusing and cable size. I have noticed that you are never wrong. What am I missing? are we talking about the instantaneous cable withstand rating, allowable OCP for transformers, or load diversity?
I would never fuse a feeder with 3X-cable capacity normally, unless it fell under a tap rule, or diversity factor. Thank You.