Electrical Calculations - Wire sizes, ampacity

Electrical Calculations is an excellent app designed for professionals in the electrical industry, offering a wide range of calculations to assist with various tasks. This app is a must-have on your smartphone!

Steps for Electrical Load Calculation

Identify All Loads:

List all appliances, fixtures, and devices that will be connected to the electrical system.

Record the wattage for each device, which is usually found on the appliance label or in the manual.

Calculate Total Wattage:

Add the wattage of all lighting circuits, plug-in outlets, and permanent appliances.

For example, if you have a refrigerator (240W), microwave (1000W), and lighting (4500W), your total would be:

240+1000+4500=5740W240+1000+4500=5740W

Apply the 80% Rule:

To prevent overloads, ensure that the total load does not exceed 80% of the panel capacity. For instance, for a 100-amp service at 240 volts:

Total Capacity=100A×240V=24000WTotal Capacity=100A×240V=24000W

Safe Load=24000W×0.8=19200WSafe Load=24000W×0.8=19200W

Your total calculated load should be below this safe threshold.

Consider Simultaneous Usage:

Not all appliances will run simultaneously. Therefore, you can adjust your calculations by considering only the largest loads or those likely to operate together. For example, if you have a heater or air conditioner but not both running at once, include only one in your calculations.

Use Calculation Tables:

Utilize tables that provide standard wattages for common appliances and circuits to simplify your calculations. For example, a standard kitchen circuit might have a capacity of 1500 VA.

More information

Key calculations featured include determining wire size, voltage drop, current, voltage, power factors, resistance, and maximum wire length. It also provides insights into active, apparent, and reactive power, as well as current carrying capacity of different types of conductors and busbars. Additionally, it offers calculations for conduit fill, circuit breaker sizing, power factor correction, and short circuit current assessment.

For electronic applications, users can benefit from calculations related to resistor and inductor color codes, fuses, resonant frequency, voltage and current dividers, and Zener diodes for voltage stabilization. The app also includes motor-related calculations such as efficiency, motor speed, slip, torque, and full-load current analysis.

Moreover, users can access various conversion tools for power, energy, temperature, pressure, frequency, torque, and more. The app provides detailed resources on fuses application categories, cable reactance tables, standard resistor values, protection classes, electrical symbols, plug and socket types, wiring color codes, and measurement units to support users in their work.

Technical enthusiasts will appreciate the pinouts section that outlines wiring configurations for Ethernet, USB, HDMI, VGA, and other cables types. The app features pinout diagrams for different connectors used in electronics, audio systems, and automotive industries, enhancing user knowledge on connectivity standards.

In addition to these features, the app offers a handy form tool for easy data input and retrieval. With its comprehensive set of calculations, resources, conversions, and pinout diagrams, Electrical Calculations is a valuable companion for professionals in the electrical sector.