Awesome app
Awesome app so easy to use with correct results.
Very useful
All your applications are very useful, quick to operate.
Thanks
Thanks
$7.99
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About
Calculates minimum circuit protective conductor and earth conductor sizes using the adiabatic equation. Input voltage, Zs value, protective device, conductor type, and material to find the minimum CSA in mm².
✓Calculate minimum CPC and earth conductor sizes
✓Uses adiabatic equation formula
✓Input voltage and Zs value
✓Select protective device and rating
✓Select conductor type and material
✓Provides results in mm²
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What's New in Adiabatic Equation Calculator
2.1.5
August 2, 2025
30/07/2025 v2.1.5 - App optimisations. - UI improvements.
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FAQ
What is the Adiabatic Equation Calculator used for?
The Adiabatic Equation Calculator is used to determine the minimum size of circuit protective conductors (CPC) and earth conductors based on the adiabatic equation formula (S = √(I²t) / k). It helps ensure electrical safety by calculating appropriate conductor sizes for earthing systems.
What information do I need to use the Adiabatic Equation Calculator?
To use the Adiabatic Equation Calculator, you will need to input your voltage value, Zs value, select the protective device used, its rating, the conductor type, and its material. The app then uses these inputs to calculate the minimum CSA in mm².
Where does the Adiabatic Equation Calculator get its K values and disconnection times?
The app references values of K from BS 7671 tables, including those for conductors not incorporated in a cable, within a cable, sheaths or armour, and steel conduit or trunking. Disconnection times (t) are derived from tables for various protective devices like fuses and MCBs/RCBOs.
What devices and conductor types are supported by the Adiabatic Equation Calculator?
The app supports calculations for various protective devices including BS 3036 semi-enclosed fuses, BS 88-2.2, BS EN 60898 / 61009-1 MCB/RCBO types B, C, and D, and BS 1361 fuses. It also allows selection of different conductor types and materials.
Is the Adiabatic Equation Calculator available on multiple platforms?
Yes, the Adiabatic Equation Calculator is available for iOS devices, specifically for iPhone, iPad, and iPod. It is designed to run on these Apple platforms.
How often is the Adiabatic Equation Calculator updated?
The Adiabatic Equation Calculator was last updated on August 2, 2025, with version 2.1.5. This indicates that the app receives regular updates to maintain compatibility and potentially add new features or improvements.
What is the price of the Adiabatic Equation Calculator?
The Adiabatic Equation Calculator is a paid application and costs $7.99. This one-time purchase grants access to all its features for calculating conductor sizes.
Does the Adiabatic Equation Calculator have ads?
No, the Adiabatic Equation Calculator does not contain advertisements. As a paid application, it provides an ad-free experience for users.
