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Electrical Calculations / Engineering

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L
Industrial Setting 3PH 480 to 3PH 240/120 XFMR Sizing
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4
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363
Ziyad Alahrbi
Z
M
Is a 480 V 3-wire single mains transformerless UPS a separately derived source?
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4
Views
331
Matt_from_CA
M
A
Fused disconnect switch
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4
Views
330
milmat1
milmat1
JoeStillman
Cold Sequence Meter Disconnects for Fire Pumps
2
Replies
24
Views
1K
JoeStillman
JoeStillman
A
Diesel Generator Distance from Building
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14
Views
2K
Birken Vogt
B
Ponchik
Did I do this correctly?
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4
Views
341
Ponchik
Ponchik
N
Manufacturers Specifications
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2
Views
259
nizak
N
I
Cable shielding grounding
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12
Views
1K
Isaiah
I
H
DC distribution panelboard loading schedule and calculations
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2
Views
303
jaggedben
J
S
240V 150A to 480V ? A
2
Replies
21
Views
1K
Jraef
Jraef
R
Is a voltage doubler economic?
2
Replies
31
Views
2K
ggunn
G
Alley Cat Bad Dog
Disconnect Switch Arc Flash label
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10
Views
947
Jpflex
Jpflex
T
Calculation
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10
Views
682
ggunn
G
Jpflex
Voltage drop two methods inconsistent
2
Replies
30
Views
1K
tortuga
tortuga
W
Transformer Secondary OCPD
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3
Views
373
augie47
augie47
B
Crane Disconnect Location
Replies
1
Views
261
augie47
augie47
MNSparky
Mike Holt's Electrical Toolbox app doing dwelling load calcs wrong?
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16
Views
939
retirede
R
D
Panelboard Main Breaker Rating < Bus Rating
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8
Views
612
dsr
D
S
Dedicated Electrical "Building" Fire Rating
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1
Views
248
JoeStillman
JoeStillman
F
How to comply with 220.87 when replacing existing loads?
Replies
9
Views
785
Knightryder12
Knightryder12
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