Tables
Electrical lookup tables
Browse electrical lookup tables for unit conversion and preliminary work.
Lookup tables
Open common conductor, circuit, utility, and source-navigation tables.
wire and voltage drop
AWG, kcmil, circular mils to mm² conversion table
Convert AWG and kcmil conductor sizes to circular mils and mm² for Canadian electrical drawings, conductor schedules, and manufacturer data.
ampacity
Ambient Temperature Review for Conductors
Ambient Temperature Review for Conductors lookup table with assumptions and boundary notes.
ampacity
T90 Nylon Ampacity Source Navigation
T90 Nylon Ampacity Source Navigation source-navigation table with strict boundary notes.
ampacity
Aluminum RW90 Ampacity Source Navigation
Aluminum RW90 Ampacity Source Navigation source-navigation table with strict boundary notes.
voltage drop
CEC Voltage Drop Limit Source Navigation
CEC Voltage Drop Limit Source Navigation source-navigation table with strict boundary notes.
ev
EVSE Receptacle and Hardwired Source Navigation
EVSE Receptacle and Hardwired Source Navigation source-navigation table with strict boundary notes.
Browse all tables by topic
wire and voltage drop
conductors
- Copper Wire Resistance by AWG/kcmil
- Aluminum Wire Resistance by AWG/kcmil
- Resistance Temperature Correction Factors
- AWG/kcmil Diameter and Stranding
- Class B Stranding Counts by Size
- Copper and Aluminum Conductor Weight
- Copper vs Aluminum Equivalent Resistance Sizes
- IEC Metric Cable Sizes to Nearest AWG/kcmil
- SWG vs AWG vs mm Comparison
- Copper vs Aluminum Conductor Properties
wire cable
- Wire and Cable Type Designations
- Insulation Types: Temperature and Location
- T90 Nylon Size, Diameter, Colour Availability
- RW90 Copper Size, Diameter, Weight
- RW90 Aluminum Size, Diameter, Weight
- NMD90 Copper Cable Size and Conductor Count
- NMD90 Aluminum Cable Size and Conductor Count
- AC90 Cable Size, Diameter, Bare Ground
- ACWU90 Cable Size, Diameter, Ground
- TECK90 Cable Size, Diameter, Ground
- Cable Marking Abbreviations
- Conductor Colour Source Navigation
- CU/AL Termination Markings and Compatibility
- Cable Bend Radius by Cable Type
- RW90 and T90 Outside Diameter and Weight
- TECK90 and AC90 Cable Diameter/Weight
- TECK90 Bending Radius Source Navigation
- AC90/ACWU90 Bending Radius Table
- Conductor Dimensions for Conduit Fill Source Navigation
- Nominal Voltages for Calculators
ampacity
- CEC Copper Ampacity Source Navigation
- CEC Aluminum Ampacity Source Navigation
- CEC Insulation Temperature Column Source Navigation
- Termination Temperature Source Navigation
- CEC Ambient Temperature Correction Source Navigation
- CEC Current-Carrying Conductor Source Navigation
- Copper RW90 Ampacity Source Navigation
- Aluminum RW90 Ampacity Source Navigation
- T90 Nylon Ampacity Source Navigation
- NMD90 Ampacity Source Navigation
- TECK90 Ampacity Source Navigation
- Cable Tray Cover Ampacity Source Navigation
- Conductor Bundle Derating Source Navigation
- Ambient Temperature Review for Conductors
- Conductor Temperature Rating Source Navigation
- Conductor Material Ampacity Boundary Source Navigation
- CEC Neutral Conductor Counting Source Navigation
- CEC Parallel Conductor Source Navigation
- Flexible Cord Ampacity Source Navigation
- Cable Tray Single-Conductor Spacing Source Navigation
- Rooftop Conductor Temperature Source Navigation
- Ampacity Review Checklist Table
voltage drop
- Voltage Drop Percent to Volts
- Voltage Drop K-Factors for Copper and Aluminum
- Single-Phase vs Three-Phase Voltage Drop Factors
- Copper Wire Maximum Run Length at 3% Drop
- Aluminum Wire Maximum Run Length at 3% Drop
- 12V/24V DC Wire Run Length by Voltage Drop
- CEC Voltage Drop Limit Source Navigation
- Voltage Drop Length Unit Conversion
- Voltage Drop Sensitivity by Current and Distance
- Voltage Drop Review Threshold Source Navigation
- DC Voltage Drop Percent to Volts
- Solar PV DC Voltage Drop Distance Table
raceway
- CEC Conduit Fill Percentage Source Navigation
- RW90 EMT Conduit-Fill Source Navigation
- T90/TWN75 EMT Conduit-Fill Source Navigation
- RW90 Rigid PVC Conduit-Fill Source Navigation
- RW90 RMC Conduit-Fill Source Navigation
- Conduit Trade Size to Metric Designator
- EMT Inside/Outside Dimensions
- RMC Dimensions, Threads, Weight
- Rigid PVC Conduit Dimensions
- LFMC/LFNC Trade Size and Fill Area
- PVC Conduit Support Spacing Source Navigation
- Raceway Support Spacing Source Navigation
- PVC Conduit Thermal Expansion Table
- PVC Expansion Joint Setting Table
- Conduit Bend Limit Source Navigation
- Offset Bend Multiplier Table
- Offset Shrink Constants by Angle
- Three- and Four-Point Saddle Bend Table
- 90-Degree Elbow Sweep Radius by Conduit Type
- Straight Pull Box Sizing Source Navigation
- Angle and U-Pull Box Sizing Source Navigation
- Knockout Hole Size by Conduit Trade Size
- Conduit Body Wire Fill by Series
boxes
cable tray
pulling
protection
- CEC Standard Overcurrent Device Source Navigation
- Conductor Ampacity and OCPD Source Navigation
- Small-Conductor Breaker Limit Source Navigation
- CEC Circuit-Breaker Trip-Coil Source Navigation
- AIC, AIR, SCCR Label Decoder
- Common Interrupting Ratings by Voltage
- Which Rating Applies: Breaker, Fuse, Panel, Control Panel
- AFCI and GFCI Protection Location Source Navigation
fuses
- UL/CSA Fuse Class
- Fuse Class Voltage and Ampere Ranges
- Fuse Label Markings Decoder
- Branch-Circuit vs Supplemental Fuses
- Time-Delay vs Fast-Acting Fuse Applications
- Class J Fuse Ratings and Applications
- Class CC Fuse Ratings and Applications
- Class RK1 vs RK5 Fuse Comparison
- Class L Fuse Ratings and Applications
- Fuse Holder Compatibility by Fuse Class
- Current-Limiting Fuse Classes
panels
service equipment
motors
- CEC Motor Branch-Circuit OCPD Source Navigation
- CEC Motor Full-Load Current Source Navigation
- Multiple-Motor Feeder OCPD Source Navigation
- 575/600V 3-Phase Motor Full-Load Amps
- Single-Phase Motor Full-Load Amps
- Motor HP to kW Conversion Table
- NEMA Locked-Rotor Code Letter Table
- Motor Starting Current by HP, Voltage, Code Letter
- NEMA Starter Size Source Navigation at 575 V
- IEC vs NEMA Motor Frame
- Motor Efficiency Source Navigation
drives
power
power factor
transformers
- 3-Phase Transformer Full-Load Amps
- Single-Phase Transformer Full-Load Amps
- Standard Dry-Type Transformer kVA Ratings
- Transformer Fault Current Multipliers by Percent Z
- Transformer Secondary Fault-Current Source Navigation at 600 V
- Dry-Type Transformer Efficiency Source Navigation
- Transformer Primary and Secondary OCPD Source Navigation
- Dry-Type Transformer Conductor Protection Source Navigation
generators
hvac
pv
batteries
- Battery Ah to kWh Conversion Table
- Battery Runtime by Load and Usable kWh
- LiFePO4 Voltage vs State of Charge
- Battery Cable Voltage Drop for 12/24/48 V DC
- Inverter Battery Fuse Source Navigation
- BESS Certification Source Navigation
- Residential ESS Location Source Navigation
- Battery Room Ventilation Source Navigation
ev
- EV Charging Levels
- Level 2 EV Charger kW by Current and Voltage
- EV Charger Breaker and Circuit Source Navigation
- EVSE Receptacle and Hardwired Source Navigation
- EVEMS Load Management Source Navigation
- EV Charging Time by Battery Size and Charger kW
- EV Charger Permit and Inspection Source Navigation
- EV Charger Rebates and Incentives
lighting
emergency lighting
grounding
- CEC Bonding Conductor Sizing Source Navigation
- Grounding Conductor Size Source Navigation
- Grounding vs Bonding Terminology in Canadian Practice
- Equipotential Bonding Conductor Source Navigation
- Single-Point Grounding Source Navigation
- Ground Electrode Inspection Source Navigation
- Resistance-Grounded Systems Bonding Source Navigation
testing
costs
utility
- Hydro One Meter-Mounting Device Source Navigation
- Hydro One Meter Location Source Navigation
- Hydro One Retail Metering Source Navigation
- Hydro One Primary and Secondary Metering Source Navigation
- Hydro One Meter-Base Plug-In Transfer Device Requirements
- Toronto Hydro 750 V Metering Source Navigation
- Toronto Hydro Primary-Metered Substation Source Navigation
- Toronto Hydro Metering Services and Charges Table
- Toronto Hydro Suite Metering Request Checklist
- Alectra Service Demarcation Source Navigation
- BC Hydro Secondary Metering Source Navigation
- BC Hydro CT Window Source Navigation
- BC Hydro Meter Room Conduit Source Navigation
- BC Hydro Overhead and Underground Connection Source Navigation
- BC Hydro Service Clearance Source Navigation
- BC Hydro Service Connection and Metering Charges
- BC Hydro Primary Service Source Navigation
- FortisBC Meter Location and Socket Source Navigation
- FortisBC Service and Metering Source Navigation
- FortisBC Underground Conduit Source Navigation
- FortisBC Medium-Voltage Connection Source Navigation
- EPCOR Power Customer Connection Requirements Table
- EPCOR Underground Residential Inspection Source Navigation
- EPCOR Service Connection Customer Responsibilities
- ENMAX Meter Socket Source Navigation
- ENMAX Secondary CT Enclosure Source Navigation
- ENMAX Interval Meter Source Navigation
- ENMAX Overhead Service Source Navigation
- ENMAX Network Service Source Navigation
- Manitoba Hydro Metering Source Navigation
residential
- Ontario Living-Area Load Source Navigation
- Ontario Single-Dwelling Load Source Navigation
- Ontario Single-Dwelling Demand Factor Source Navigation
- Ontario Demonstrated Load Source Navigation
- Ontario Added Load Source Navigation
- Ontario Residential Service Size Source Navigation
- Ontario Secondary Suite Load Source Navigation
- Ontario Laneway and Backyard Suite Load Source Navigation
- Ontario Row-House Feeder Demand Source Navigation
- Ontario Apartment Unit Load Source Navigation
- Ontario Multi-Unit Demand Factor Source Navigation
- Ontario Multi-Unit Common Load Source Navigation
- Single Dwelling vs Apartment Load Rule Selector
- Maximum Outlets per Branch Circuit Source Navigation
- Receptacle Device and Outlet Count Source Navigation
- Ontario Known-Load Branch Circuit Source Navigation
- Dwelling Room Receptacle Spacing Source Navigation
- Ontario Balcony and Porch Receptacle Source Navigation
- Outdoor and Garage Receptacle Count Source Navigation
- Tamper-Resistant Receptacle Location Source Navigation
- Ontario GFCI Receptacle Source Navigation
- Ontario AFCI Branch Circuit Source Navigation
- Sump Pump Receptacle Circuit
- Smoke and CO Alarm Outlet Count
- Ontario Kitchen Counter Receptacle Source Navigation
- Ontario Kitchen Island and Peninsula Receptacle Source Navigation
- Ontario Kitchen Counter Circuit Source Navigation
- Kitchen Counter Branch-Circuit Count Source Navigation
- Ontario Refrigerator Branch-Circuit Source Navigation
- Open-Concept Kitchen Receptacles
- Butler's Pantry Receptacle
- Laundry Receptacle Circuit
- Electric Range Demand Load Source Navigation
- Range Cord and Receptacle Rating
- Electric Dryer Demand Load Source Navigation
- Dryer Cord and Receptacle Rating
- Electric Space Heating Demand Factor Source Navigation
- Baseboard Heater Branch-Circuit Grouping Source Navigation
- Ontario Heat Pump Load Source Navigation
- Small Commercial Service Load Component Source Navigation
- Small Commercial Demonstrated Load Source Navigation
low voltage
special environments
Table boundary
Tables are lookup aids. A conversion table is not an ampacity table or a permission to use a conductor on a project.