CALCULATORS
Calculate annual savings by switching to compact fluorescent lighting; Calculate voltage crop by distance and conductor size; Calculate amperage, resistance, voltage; Use our online scientific calculator.
FORMULAS
AC/DC formulas to determine efficiency and power factor; Use Ohm's Law for wattage, amps, or resistance; Estimate voltage drop over long runs; Common transformer calculations.
INSTALLATION
Need help on your next weekend project? Print our simple step-by-step instructions for installing a ceiling fan, light kits, doorbells and chimes. Liberty Electric can ship everything you need for a complete project, straight to your door.
REPAIRS
Doorbell not working? Favorite lamp flickering? Jump to our repair section for assistance. Repairing a doorbell or rewiring a table lamp may be easier than you think.
REPLACEMENT
Replace your boring wall switches and outlets with new decorator-style devices available from Liberty Electric. Click on our simple instructions to see how easy it is to do-it-yourself - and save!
TIPS & TRICKS
Browse our Tips & Tricks section for simple solutions to common problems faced by electricians in the field - from other electricians.

ESTIMATING
Estimating lighting efficiency; Estimate the right type R-value insulation; Determine appropriate watt density for heat source limitations; Estimate the proper winding temperature for motors.
PROTECTION
OSHA safety guidelines for lockout/tagout on construction sites; Fuse removal safety; Clothing and personal protective equipment guidelines; Ground fault circuit interrupters and prevention of electrical shock; Jobsite fire safety; Working in hazardous locations; Emergency first aid in the field.
GLOSSARY
Browse the Liberty knowledge base for common electrical definitions and lighting terms which are often misused; Learn more about communications and fiber optic cabling; Understanding motor characteristics.

SELECTION
Select the correct transformer for your application by input/output voltage and wattage; Details on selective coordination for elevator circuits.
PREVENTION
Selected OSHA safety guidelines; Prevent carbon monoxide poisoning from small gasoline powered engines and tools; Prevent deaths and injuries from excavation cave-ins; Prevent electrocution on cranes; prevent falls through skylights and roof openings; Prevent scaffold falls; Prevent silica exposure; Prevent worker injuries and deaths from traffic-related motor vehicle crashes.
MISCELLANEOUS
Browse this section for details on the latest revisions to the National Electric Code; Learn how to implement the new requirements on your jobs; News and information of interest to professional electricians.

Click below to print our

 Wire Amperage Chart