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Tools for the Trades
Below is a collection of Reference Data, Tables and Calculators for the Electrical, Plumbing, HVAC and Data Comm Industries. To suggest additonal items for this page click here. Just for fun we have also included both a Wind Chill/Temperature Conversion Calculator, and a Wind Chill Temperature Table.
Electrical Tables and Calculators
Full Load Amp Ratings Conduit Fill Tables
  Single Phase Motor Table   EMT, IMC and Rigid Conduit
  Single Phase Motor Calculator   Sch 40 and Sch 80 PVC Conduit
  Three Phase Motor Table   Flexible Conduit
  Three Phase Motor Calculator   Liquidtight Conduit
  Single Phase Transformer Table   Mallable Conduit Bodies
  Single Phase Transformer Calculator   Aluminum Conduit Bodies
  Three Phase Transformer Table   Form 7 Conduit Bodies
  Three Phase Transformer Calculator   Wiremold Raceway
  Direct Current Motor Table
  Direct Current Motor Calculator
 Voltage Drop Conductor Characteristics
  Voltage Drop Calculator   Allowable Ampacities of Insulated Conductors
  Voltage Drop Table   Derate more than 3 Conductors in a raceway
  Wire Size Calculator   Conductor Sizes 3 Wire 1Ø Residential Services
Grounding Tables and Calculators Electrical Calculators and Formulas
  Equipment Ground Calculator 250-122   Useful Electrical Formulas
  Equipment Ground Table 250-122   Ohms Law Calculator
  Service Entrance Ground Calculator 250-66   Ohms Law Power Calculator
  Service Entrance Ground Table 250-66   Ohms Law Impedance Calculator
    Sylvania Energy Cost Savings Worksheet
NEMA Configurations Wiring Size Cubic Inch Requirements
  Straight Blade Configurations   Box Wire Capacity Calculator
  Locking Blade Configurations
Acme Buck-Boost Transformer Selection Charts FPE Buck-Boost Transformer Selection Charts
  120x240V - 12/24V 1 Phase   120x240V - 12/24V 1 Phase
  120x240V - 12/24V 3 Phase   120x240V - 12/24V 3 Phase
  120x240V - 16/32V 1 Phase   120x240V - 16/32V 1 Phase
  120x240V - 16/32V 3 Phase   120x240V - 16/32V 3 Phase
  240x480V - 24/48V 1 Phase   240x480V - 24/48V 1 Phase
  240x480V - 24/48V 3 Phase   240x480V - 24/48V 3 Phase
Product Selection Guides Vent Fan Selection Guide
  Ideal Wire Lube Guide   Nutone Vent Fan Selection Guide
  Steel City Floor Box Selection Guide
  Steel City Poke-Through Selection Guide
Plumbing Tables and Calculators
Copper Pipe Characteristics Copper Pipe Internal Working Pressure
  Table 2a Type K Copper Tube   Table 3a Type K Copper Tube
  Table 2b Type L Copper Tube   Table 3b Type L Copper Tube
  Table 2c Type M Copper Tube   Table 3c Type M Copper Tube
HVAC/R Tables and Calculators
Calculators Tables and Charts
  Round Duct to Square Feet Calculator   Convert Round Duct Area to Square Feet
  BTU to Ton of Refrigeration Calculator   Table BTU to Ton of Refrigeration
  Watts to BTU Calculator
  Airflow Calculator
Data Comm Tables
Cable Attenuation Tables Channel Link Attenuation and Loss
  Coaxial and UTP Cables   Basic / Channel Link
  UTP Horizontial Runs   Basic / Channel Link Loss (Pair to Pair)
  UTP Backbone Runs


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