- Bare Solid vs Bare Stranded Ground Wire
- Transformers Manufacturer and conductors
- Derating due to depth of Duct Bank
- Arc Fault Breaker problem
- Sqare D powerlink
- Flowmeter...
- Illuminated 3-Way switches
- Current in a motor equivelent circuit
- Unit heater in my house
- Feeder Calculations
- AFCI question
- 314.28
- Stored energy mechanism on Breakers - Easy Q for field guys
- Table 220.55
- MV switchgear - grounding electrode conductor
- AC vs DC Refrigeration
- remote control lighting
- Buyer Beware... E-bay
- Voltage Imbalance .85% / Current imbalance 13%
- 220.84
- Nec Motor Fla Pf
- 220V Breaker
- Panel Labeling Software
- 2005 Nec 220.61(a), Neutral Load
- switch leg and Neutral
- Auto paint booth
- exam lights in hospitals/doctors offices
- Single Bushing Transformer
- ATS netural transfer
- losses in X`mer
- New Meter
- re-torquing m.c.c's
- MVA Method for Short Circuit Calc's - question
- Dimmer vs speed control
- Ohms = E squared / Power
- Rant about 2x4 lay in fixtures....
- 14 gauge cu wire allowable in commercial applications
- Site Lighting
- Service Trough Sizing
- Load diversity allowance?
- lights dimming
- Computer room E-Stop
- Switch gear grounding
- How do you interpret Aritcle 400.7(B)
- Mixing conductor types
- NEC Table 220.86
- HID fixtures on GFI ?
- stair wiring
- What defines the difference between an electrical tester or an indicator?
- deterioration of the x`mer
- RCDD vs. CCNT certification
- Distribution flush in wall
- Your home /afci install?
- vfd control
- 208VAC Watts and Current Calculation Help
- question on cameras
- Interesting Megger Readings
- Shunt trip physical design
- auto recloclose elcb/rcd/circuit breaker
- Wood boiler UPS
- IT Room ESTOP
- Testing cables in my audio studio
- Exterior Egress Lighting
- megger test?
- DC voltage drop?
- Fluke 335 with legs
- Dayton Drive
- Opinion on higher quality install
- 210/220 VAC Help
- Schematic of 480/277 distribution system
- Xfrmr inrush and Available short circuit current
- Breaker charging current
- Transformer load calculation
- generator
- electric base board heating feeders
- Recording Studio Power
- Bus Bars: AL vs. CU
- arc fault breakers and magnetic dimmable ballasts
- Over-voltage
- Two family dwellings
- Service Calculation for Heat Pumps
- Equipment Grounding Conductor 250.122 (D)
- Watt Watcher Luminaries
- Phase Rotation
- Conduit fill
- Ground wire and rod inside parking lot - light pole base
- Help with problem at the South Pole!
- U. S. Army equipment
- Nema L6-20
- AC Voltage drop
- intermatic 101R
- Contractor questions
- Xfmr SC Fans or No Fans
- whats wrong with my ups
- Looking for Breakers and Box rated to -40C
- 12 lead 3Phase AC motor
- Motor Overcurrent Protection
- 310.15(B)(2) Adjustment Factors
- transformer backfeeding
- Standby power annual cost calculation
- VFD Isolation Transformer Connection
- Voltage Drop Calculations
- Mostly industrial not much residential
- Anyone know where I can find 48VDC Relay?
- Part-winding motor starter
- 4" Solder block section for lightning protection
- Instrument Earth bar application
- voltage on coaxil cable
- Quick question 120/240 stuff
- gfci breaker keeps tripping are there known issues with them?
- Join MV cable at different size
- Load Center KAIC
- USES of UPS
- Parallel paths to grd
- Ip Addressable Breakers
- Minimum HP
- Data Center Raised Floor
- hi potting
- Motor performance
- Photovoltaic Grid Backfeed
- Spare Conductors??
- Totally enclosed panels
- Wireway Fill Installing MC Cable
- Type R MV Motor Fuses
- Wattage, Speakers, unlimited SPL ?
- 220.14 Clarification?
- Autotransformer starting current
- cooling unit outside compressor
- Size of transformer center tap conductor
- Scotch Tape - The Next Power Source
- Voltage drop and derating corelation
- Solar Module Temperature Coefficients
- AC voltage drop 1 phase
- Tie Breaker Size
- what's wrong
- Conduit Fill Question.
- How to size the Collector Bus?
- Sign lighting
- Megging a DC motor
- how to size equipment ground wire (600V) for MV cable?
- Setting Instantaneous CB 430.52.C.3
- maximum amount of #12 wires to fit into 3/4" pvc pipe?
- Motor inrush > LRA
- Generator / UPS Trouble
- Sizing generators for motor loads
- Min A.I.C. per Panel Schedule
- Fusing a Control Transformer
- 3 phase feeder
- Fire suppression system
- Motor Overload sizing with power factor correction capacitors
- Substations fence to live parts distance requirements
- 3 phase 208 to single phase
- Electrical switchgear/panel & data centers
- Fire Pump Service - Transocket
- Diversity - Data Switches, etc
- Transformer Sizing
- Direct Burial Cat 5E???
- Type of Transmission System
- Work Space for Unit Substation
- Calculating Photovoltaic Conductors
- IG receptacle
- capacitors
- Job site electrical cords
- EMP protection
- Silent switches:
- Transformer sizing (decent rule of thumb)
- ciferin... Bodine style??
- Conduit Connection to Generator
- 480 v vfd, 208 v pump
- service mast through the roof
- Light Dimmer
- cable ampacity and derating factors
- Trouble with voltage drop
- Voltage Ratio
- Service AIC ratings
- 4/0 Al SER Cable vs 200a rating
- Aggravated!
- neutralize?
- Permissible wiring methods
- got a funky one you guys will laugh at
- stepdown with tapping
- grounding question
- calculating general lighting from table 220.12
- question
- MR .Engr
- ATS with By-Pass Isoaltion
- newbie
- NM Cable
- Jcr production question Conductor Fill
- Same phase conductors in conduit
- 10 sec requirement
- Generator Annunciator Cable
- 3- single ph vs 1- 3 ph transformer
- Data Logger for Voltage/Current
- Zone Selective Interlocking
- 320 amp service
- question on load calc, wire selection and disconnect selection.
- 480/277
- dumb question - 200 amp, 3 phase, 208 volt
- Grounding and Lighting Protection
- Indicating lamps in motor controls
- Cable for guest room hotel.
- Document
- Branch Circuits in guest room hotel
- 210.63
- NEC 220-60 Noncoincident Loads
- Mcc
- sub panel
- Article 400.8
- electric utility
- Lift Station Submersible Pump
- Panels as raceways
- Earth Resistance Testing
- Disconnect at motor when VFD driven
- 240 volt 3 phase delta
- 230.80 combined rating of disconnects
- Can I add Motor to existing feeder and sleep at night?
- 208 are 240
- Mechanical Lugs
- voltage drop formula
- Sizing Transformers
- "Older" Panelboards
- 208-230v Motors on 240?
- Buss Plug Sizing
- How to size buck/boost xfmrs?
- Autocad
- sizing a motor disconnect...
- Dimming can lights
- Xmer overcurrent protection
- Treatment for wooden poles
- Would this be a real neutral?
- Lighting control motion detectors
- Lightning Rod conductor
- XLPE Cable - multiple cores per phase
- Nanotechnology
- labelling of distribution equipment/arc fault
- NEC Table 9
- GEC question in Iwire's pic
- Oral B
- Uses ent
- 310.15(B)(2)(a) question
- The Mother of all Story Problems
- Doorbell circuit
- Chapter 9 Table 1
- Kva
- Nuetral in multi wire assy.
- vault doors
- Paint Cabinet Bonding
- motor pm
- Constant vs Variable Torque