SparkTools: NEC Calculator
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About this app
The ladder is up. The run is measured. Now the numbers need to hold up.
SparkTools helps electricians work through the decisions that slow a job down: voltage drop on a long run, conduit fill before a pull, and bend marks before the first bend. Enter the measurements you have and see the answer with its formula and steps. No mystery number to trust just because a screen says so.
Keep the right tools within reach:
• Voltage drop shows the percentage lost and voltage at the load.
• Conduit fill checks same-size conductors in EMT against the fill limit.
• Offset and three-point saddle tools lay out marks and shrink.
• Motor circuit, pull tension, Ohm's Law and lighting layout cover the next calculation.
• NEC Table 310.16 ampacity, torque guidance and quick converters are there when you need a reference.
Pin the tools you use most. Work through calculations and bundled references even when reception disappears inside a building.
If you spend your day making electrical decisions from measurements, this belongs in your pocket.
Download SparkTools and take the working to the job.
Check final choices against the code edition, local rules and equipment instructions that apply.
SparkTools helps electricians work through the decisions that slow a job down: voltage drop on a long run, conduit fill before a pull, and bend marks before the first bend. Enter the measurements you have and see the answer with its formula and steps. No mystery number to trust just because a screen says so.
Keep the right tools within reach:
• Voltage drop shows the percentage lost and voltage at the load.
• Conduit fill checks same-size conductors in EMT against the fill limit.
• Offset and three-point saddle tools lay out marks and shrink.
• Motor circuit, pull tension, Ohm's Law and lighting layout cover the next calculation.
• NEC Table 310.16 ampacity, torque guidance and quick converters are there when you need a reference.
Pin the tools you use most. Work through calculations and bundled references even when reception disappears inside a building.
If you spend your day making electrical decisions from measurements, this belongs in your pocket.
Download SparkTools and take the working to the job.
Check final choices against the code edition, local rules and equipment instructions that apply.
Voltage drop, conduit fill and bending marks with the full working shown
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What’s new
Initial release of SparkTools:
- Electrical calculators for voltage drop, conduit fill, bending, motors and more, with worked steps.
- Free ampacity and torque references, plus fraction and unit converters.
- Pin frequently used tools on the home screen.
- Electrical calculators for voltage drop, conduit fill, bending, motors and more, with worked steps.
- Free ampacity and torque references, plus fraction and unit converters.
- Pin frequently used tools on the home screen.
App support
About the developer
ANSHAY AGARWAL
dimly-zebra-museum@duck.com
Moradabad, Moradabad, Thakurdwara,
NEAR SONAKPUR STADIUM
Moradabad, Uttar Pradesh 244001
India
