Electrical Calculations / Engineering

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Service entrance Wire
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8
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3K
mannyb
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Max % of allowable currrent unbalance in lighting transformer
2 3
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48
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9K
Phil Corso
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The PI Test - Insulation Resistance Readings
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2
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971
zog
zog
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Lights on 20A Circuit
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mstrlucky74
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How many secondary connections to one primary transformer?
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wehaveplans
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Grouch1980
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Voltage drop for a remote SEB
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3
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GoldDigger
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mshields
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Class C GFCI as per UL 943C
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4
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mshields
mshields
mbrooke
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Automatic Source transfer
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13
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mbrooke
mbrooke
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Meter Bank Feeder Sizes
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5
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mstrlucky74
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Generator Controller Settings?
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rian0201
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Adjustable-Speed Drive System vs Industrial Control Panel
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2
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Badams
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1200 amp service in 2- 4" conduits?
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12
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tkb
tkb
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2500A Feeder Size
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3
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mstrlucky74
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Existing 3 phase motor on 3 phase wye system?
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12
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Phil Corso
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electrofelon
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No load losses - normal vs reverse fed
5 6 7
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131
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electrofelon
electrofelon
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Secondary conductor sizing and Table 450.3(B)
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8
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ShockedMonkey
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Does installing electrical conduits in a concrete floor slab change fire rating?
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19
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6K
Ingenieur
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Service Switchboard Incoming Feeders
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2
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mstrlucky74
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Wire size for 3200 Amp
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14
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4K
GoldDigger
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Conductor Size for Control/Reference Tap on 3000A Bus
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10
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hcubed
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