- Sub-Fed Panelboards
- Wire size for 400 amp service
- dc calculation
- Heavy fixtures
- High voltage wire pull
- Coffee Maker water is getting hotter, and
- 220.82 load calc. regarding HVAC load
- New York State Police Lighting Requirments
- Easy: loading 750kW cat in a 0.95pf bldg
- Switched Neutral in ATS
- 820v
- Wiring for Propane water heater
- Downsizing Neutral
- panel boards
- AFCI pulls how much current and when? Current draw mystery
- 240-480V transformer
- curious about ratings on breakers as regards voltage
- Instantaneous trip X 10
- Empty 200a commercial service
- Wiring 120V,1PH Equipment
- House hold Appliance showroom
- Wiring for smoke exhaust fan.
- Overcurrent protection
- transformer draw
- demand of point of use water heaters
- 3 12-3 supplying kitchen
- 240 volt gfci breaker
- Series Vs. Fully rated
- 3Ph ungrounded delta system 230 volts
- What does the term MCA stand for?
- Fault Currant Ratings
- 3ph load calc spread sheet
- Fault Currant Ratings
- Fault Currant Ratings
- Candlepower formula
- Adjustment factors & Load diversity
- Tap Rule
- optional stand-by
- EETs and the Fundamentals Of Engineering exam.
- PF and EFF for Motor HP
- Neutral Requirement
- 120v power distrabution
- New Restaurant - option Method
- Wireway/Gutter Sizing
- Transformer voltage drop
- Commecial water park
- Megging and High-Potting
- torque specifications
- Connecting a Delta to Wye System via a Tie Breaker
- Fuse sizing
- Motor Conductor sizing
- Load Balancing My Facility Why??
- Wall space
- A couple of 240D 3P questions ............
- multifamily load calculation
- GFCI Receptacles Won't Reset
- Emergency Lighting in a emergency operations center.
- 100-Amp Equipment Ground Conductor
- Power to 3 phase air compressor
- Power to 3 phase air compressor
- LEEDS Certification
- Compact Flourescents
- Minimum branch circuit rating for ranges
- addition
- connection ampacity
- Feeders
- Gounding electrode conductor for Transformer
- generator size
- Transmission line spacers
- 300kva XF calculations
- Wye -Start Delta- Run Motor
- Motor Control center
- How close? (voltage drop)
- Voltage Drop
- high rise wiring
- Lighting Contactor Sizing
- degree or technique training????
- Pole Mount Step Down Transformer
- Spacing For Copper Busbars
- PVC bending
- Double Ended Switchboards
- Remote Lighting Control
- Motors
- Fault current reduction for lighting control
- What will they think of next?
- Well wired.
- Demand factor too high !!!
- NEMA versus IEC Motor Starters/Contactors
- HM breakers
- Breaker Rating...
- EMI Interfrence
- Conduit Fill
- Service with a twist - what's in the box?
- Need an electrical engineer in Akron, Ohio
- Bus Bar Ampacities
- Electrical Services
- Sizing a circuit breaker for a motor starter
- 3 Phases panel at 1 phase
- How do I find the K-frame of a transformer
- Multiple Duplex main tripping???
- Voltage Drop
- Poor Design
- Question
- Another transformor question
- Confused by Fuses
- Transformers, Conductors, Fuses and the Unknown
- Art 518
- Hello from the NC Coast, and a Question...
- Delta and WYE
- short duration power loss
- How are panels sized?
- Inverter "ugly AC"?
- question sizing fuses for xfmrs
- Using existing steam piping as conduit.
- Motors
- Confussed
- Microwave ovens
- Aluminum conductors
- Live and Learn:
- Circuit Breaker coordination
- Can you put MR16 and Metal halide fixture in the same switch?
- Transformer Impedance
- bonding
- Maximum size breaker for heat trace cable
- air condition feeds
- Ground Fault
- Pvc Expansion Coupling Confusion
- Flex for 15 KV Circuits
- Main Lug Vs Main Breaker PanelBoards.
- Switched Emergency Lighting?
- Delta
- Nameplate Color Code Scheme for Panels/Breakers
- ampacities of branch ckts?
- above ground pool pumps
- Advice Needed!! 100amp from panel to disconnect
- Phase Colors for Medium Voltage Cables
- Type TC Cable Tray Ampacity
- Percent Fill
- service
- 90C wire 75C Equip
- Does a 3 phase 60 amp panel provide 60A?
- ieee 1547
- grounding bushings
- More on Generators and Emergency Lighting
- ENT boxes with PVC Conduit
- 4 point saddle
- how do you?
- Motor starting
- 240volt delta center leg
- EMT run horizontal @ 4'on block wall in workshop?
- XHHW vs THWN
- Meter Set Up Question
- Natural Gas Piping Bonding
- X Ray Machine
- Xray ?
- X Ray Machine
- Max 15A outlet load
- Engineer's Submittal review--what are the ramifications/liabilities of mistakes?
- neutrals and grounds at main disconnect .
- reverse polarity in receptacles
- NEC Rules for 600VDC Electrical System
- Expansion fittings
- MC Cable in parallel
- 600A Distribution Board
- 125Hp to 200HP?
- 100% rating
- secondary delta corner ground
- CA Article 24
- Given others the benefit of the doubt
- roy gibbens
- Pool heater
- How overkill are NEC calculations?
- Engineering Forum
- Arc Flash Hazard
- cir mils
- Load Calc
- solid vs stranded
- Ground fault relay setting
- Rheostat...
- Panelboard Load Calcs with Motors
- A Real Slide Rule:
- Dummy of Month Award:
- 3 phase y 100 amp subpanel.
- Lightning Surge Protection
- U.L. service entrance rated main circuit breaker?
- 460v Power Requirement
- Hotel load calculations
- Emergency Lighting in Pool
- ac unit conductor sizing
- Art 220.83 Existing Dwelling Unit
- y-y connection
- Dimming LV lights
- Spray Foam Insulation
- AIC Rating VS Short Circuit Rating...
- safety switches in a class 2 div-2 area.
- Access Control
- Minimun Pri/Sec Ocpd on transformer
- 4-way Troubleshooting Q and Brain Teaser
- Derating (8) #12 In a Conduit
- Source for electrically-operated breakers
- added service
- IEEE, NEMA, (etc.) standards - What are they for?
- Hot tub derating
- 230V household voltage phase
- room feeder
- Small fire job
- 3 very easy questions,please help I am really confused
- Current Limiting MCB
- generator...sizing ats for exisitng building
- cables in panel for rough in
- Why Electricity providers charge you on KVA when..
- cables in panel for rough in
- Motor Lead Pigtail Splicing of a 4000V Motor
- Why would I select FRESNEL lens?
- automatic disconnect
- asynchronous generator
- Solar technology
- Hot tub panel
- Existing dwelling calculation
- Wiring for welders your opinion
- inrush current XFMR
- momentary overvoltages- not transients
- Jerry
- Generator Calculations and sizing
- Voltage Drop, Marinas (practical or dangerous)
- island cabinets receptacle height
- transformer load calculations
- Neutral Derate with Nonlinear loads involved
- > size neutral for harmonic load
- How do I apply AIC or Interrupting Rating.
- Happy Fathers Day
- Definition of MVA - Mega Volt Ampere
- Transformer questions
- Kirchoff's law
- ?Bundling?
- fiber optic questions
- Fluorescent lighting loads
- Monthly Demand Load question
- 500' POTS Line?
- Boathouse Remote Lighting Control
- Voltage Drop
- Lighting
- Fuse Ratings
- 208 volt 3 phase 60 cycle 7 1/2 HP motor with a 220/440 3 phase 50 cycle power supply
- generator hookup
- Lighting demand load
- limits of design by contractors
- ballast fusing / disconnecting
- Feeder Sizing
- Receptacle box for flush mounted in stone app