Electrical Calculations / Engineering

C
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Question regarding 310.15 (B)(7)
Replies
7
Views
926
don_resqcapt19
don_resqcapt19
A
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SCCR for existing installation
2 3
Replies
46
Views
9K
petersonra
petersonra
Grouch
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Slab openings
Replies
5
Views
1K
Grouch
Grouch
P
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Arc Resistant MV Switchgear
Replies
16
Views
4K
Bwas
B
B
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Unbalanced line-to-line loads on 3-ph transformer
Replies
3
Views
654
synchro
synchro
P
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Question regarding 220.87
Replies
3
Views
806
drktmplr12
D
M
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reidentify white conductor for receptacle
Replies
8
Views
1K
James L
James L
HoosierSparky
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Load Calcs w/ EV Charger
Replies
0
Views
489
HoosierSparky
HoosierSparky
P
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3-Phase utility tied inverter feeding single phase load
Replies
1
Views
595
synchro
synchro
D
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Fire Alarm- Elevator Recall required for All Elevators?
Replies
3
Views
5K
victor.cherkashi
V
L
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UPS system MBB, RIB, IOB, coordination
Replies
3
Views
3K
ron
ron
R
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Is 200 amps enough?
Replies
1
Views
962
Little Bill
Little Bill
S
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UL891 question
Replies
7
Views
3K
Jraef
Jraef
M
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Power Dist Panel Board Mounted inside of UL508A panel
Replies
15
Views
3K
tommtgun1585
T
mshields
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Short Circuit, coordination and arc flash
Replies
1
Views
760
wbdvt
W
M
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480v 3W delta and neutral
Replies
16
Views
6K
kwired
kwired
S
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service cable
Replies
1
Views
477
charlie b
charlie b
mbrooke
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Should LOP be enabled?
Replies
4
Views
2K
mbrooke
mbrooke
mshields
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What is the best way to install lightning protection on roof top HVAC equipment
Replies
6
Views
1K
mshields
mshields
mbrooke
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Correct Way of Switching Voltage Inputs?
Replies
4
Views
713
mbrooke
mbrooke
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