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CALCULATORS
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FORMULAS
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| 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.
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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.
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INSTALLATION
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REPAIRS
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| 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.
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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.
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REPLACEMENT
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TIPS
& TRICKS
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| 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!
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Browse our Tips &
Tricks section for simple solutions to common problems faced by electricians
in the field - from other electricians. Have a great tip? Click
Here to let us know your suggestion.
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ESTIMATING
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SELECTION
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| 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.
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Select the
correct transformer for your application by input/output voltage and wattage;
Details on selective coordination for elevator circuits.
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PROTECTION
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PREVENTION
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| 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. |
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.
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GLOSSARY
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MISCELLANEOUS
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| 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. |
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. |
