Electrical Calculations / Engineering

J
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Health Care Facilities, and transfer switches per 517.30
Replies
3
Views
2K
mikewright
M
Grouch
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Series Rated Combinations
Replies
10
Views
4K
flatlander
F
J
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Earth rods in triangle configuration BS 7430:2011
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3
Views
5K
josealjim
J
D
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τstall estimations constants
Replies
2
Views
1K
doppler
D
Y
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% Differential / Slope Characteristic Selection for 87 Differential Relay
Replies
17
Views
5K
Sahib
Sahib
M
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WHEN I NEED TO BREAK THE NEUTRAL OF AN AC DISCONNECT SWITCH?
2 3
Replies
53
Views
24K
iwire
iwire
mshields
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Table 310.60(C)(77) and similar tables
Replies
5
Views
4K
mshields
mshields
W
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horizontal clearance around privately owned 12kv power line
Replies
8
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4K
wsbeih
W
T
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Existing Dwelling Load Calc - 220.83
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1
Views
985
Smart $
Smart $
11bgrunt
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120/240 backfeed to create 7200 causes 240 volt breaker to trip.
2
Replies
20
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7K
gar
G
J
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Two Steamists on 100amp subpanel. One popping breaker.
2
Replies
21
Views
4K
iwire
iwire
Grouch
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what type of switchboard is this?
2
Replies
22
Views
5K
Grouch
Grouch
J
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430.24 Question
Replies
2
Views
1K
Smart $
Smart $
infinity
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3 Pole Vs. 4 Pole ATS
Replies
10
Views
6K
kwired
kwired
L
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Conductor Ampacities
2 3 4
Replies
68
Views
15K
Smart $
Smart $
E
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Small Transformer Protection Scheme
Replies
19
Views
4K
Ingenieur
I
brantmacga
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Multiple breakers tripping and hot to the touch
2
Replies
38
Views
9K
brantmacga
brantmacga
mshields
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Primary feeders to transformers
Replies
10
Views
3K
iwire
iwire
J
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Intrinsically safe
Replies
2
Views
1K
rbalex
rbalex
gadfly56
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Expansion Joints
Replies
1
Views
1K
chris kennedy
chris kennedy
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