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Electrical Calculations / Engineering
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Breaker and wire size for ductless mini split?
natesc0tt
Mar 9, 2022
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8
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2K
Mar 9, 2022
Dennis Alwon
F
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Power Supply for Multi-Unit Apartments
frflaspo
Mar 9, 2022
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8
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1K
Mar 9, 2022
david luchini
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Requirements for 2 services in a building
Tainted
Mar 4, 2022
2
Replies
21
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2K
Mar 9, 2022
ptonsparky
B
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Sizing a transformer
Btwixt
Mar 9, 2022
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9
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411
Mar 9, 2022
Btwixt
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A
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Ampacity & ambient temperature question
Ajr188
Mar 8, 2022
Replies
19
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1K
Mar 8, 2022
Ajr188
A
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how to size peak Surge Current Rating per Phase (kA) for SPD
ctaylo360860
Feb 24, 2022
Replies
14
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2K
Mar 8, 2022
petersonra
P
R
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Farm Irrigation Electrical Pump Panels Surge Protection
RBro42
Mar 4, 2022
Replies
16
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874
Mar 8, 2022
kwired
G
Locked
Meter Location
Greg1707
Mar 7, 2022
Replies
11
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1K
Mar 7, 2022
paulcoulston
P
E
Locked
STAR-DELTA starter converted to vfd with 6 leads motor(100hp /400vac/3phase/60hz)
eufemiano
Mar 3, 2022
2
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20
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2K
Mar 5, 2022
Besoeker3
T
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Service main sizing
Tyler1931
Mar 4, 2022
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18
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1K
Mar 4, 2022
electrofelon
T
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AC mains protection relay
Todd0x1
Feb 28, 2022
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11
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1K
Mar 4, 2022
tom baker
P
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Transformer question
PowerdT
Feb 7, 2022
2
3
4
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67
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5K
Mar 3, 2022
Mr.jjrooney
M
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Help with Wire Size with the Terminal Lugs Table for 1200A
Electricalhelp
Mar 3, 2022
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12
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1K
Mar 3, 2022
LarryFine
F
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Inverse Time CB Calculation
Fishn sparky
Mar 2, 2022
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10
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648
Mar 3, 2022
kwired
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Low & Line Voltage Same Conduit
Alwayslearningelec
Mar 2, 2022
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15
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1K
Mar 3, 2022
don_resqcapt19
Locked
Sensor type?
ptonsparky
Mar 3, 2022
Replies
9
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439
Mar 3, 2022
Jraef
H
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How to calculate a proper amplifier gain?
Hanalee
Feb 28, 2022
Replies
10
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972
Mar 3, 2022
Speedskater
S
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Bus duct used as tie between switchgears
Sean_Carb
Mar 3, 2022
Replies
8
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691
Mar 3, 2022
electrofelon
Locked
208V 2 Pole Load
W@ttson
Dec 6, 2021
2
3
Replies
41
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5K
Mar 2, 2022
wwhitney
W
D
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Fire Alarm Device/Control Unit Locations
designer82
Feb 28, 2022
Replies
2
Views
378
Mar 2, 2022
JoeStillman
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