Electrical Calculations / Engineering

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Panelboard placement based on voltage drop
Replies
2
Views
1K
Fred B
Fred B
Grouch
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Nickel coated copper wire
2
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20
Views
4K
Grouch
Grouch
A
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NEC code which mentions arc flash study
Replies
9
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6K
jim dungar
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F
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URD
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2
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4K
Rock86
R
sunny1
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Temporary bathroom trailer load
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2
Views
758
sunny1
sunny1
W@ttson
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Open Drip Proof (ODP) / Totally Enclosed Fan Cooled (TEFC)
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2
Views
2K
Jraef
Jraef
E
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Isolation Transformer for "Dirty" Power
2
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38
Views
7K
topgone
T
Tainted
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Are 3-phase residential apartment neutrals a current carrying conductor?
Replies
17
Views
2K
electrofelon
electrofelon
junkhound
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how to cool 5 HP motor to get 10 HP output
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17
Views
2K
Besoeker3
Besoeker3
R
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Optional calculation NEC 220.82
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12
Views
3K
frofro19
F
E
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TDD without THD - Harmonics
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4
Views
915
jim dungar
J
R
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VFD driving motor at slower speed
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5
Views
2K
Jraef
Jraef
J
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Multiple VFD feeds from Single Disconnect
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6
Views
2K
Jraef
Jraef
Tainted
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Tap rule clarification needed
Replies
9
Views
3K
jaggedben
J
A
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EM Lighting
Replies
5
Views
2K
Alexis Enrique
A
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circuit information on drawings
Replies
5
Views
2K
rambojoe
rambojoe
T
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Main Breaker Tripping.. Incorrect Assumptions?
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19
Views
2K
Mr. Serious
Mr. Serious
I
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3 phase LED branch circuits- finding amps
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9
Views
2K
Isaiah
I
Grouch
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Disconnect switch Short Circuit Rating
2
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25
Views
4K
Grouch
Grouch
Tainted
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Alternating operation of 2 motors daily
2
Replies
37
Views
7K
Randy2718
R
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