R1+R2 ZS / ZE CALCULATIONS
Calculate the earth loop impedance (Zs) from the R1+R2 and Ze values or calculate the R1+R2 value from the Zs / Ze values.
Calculating R1+R2 is a very simple equation of R1+R2 = Zs - Ze, however if you have many calculations to do that is where the R1+R2 calculator can help to save time.
A handy app for checking & verifying measured R1+R2 values or for calculating a value (Zs, R1+R2) from the other two known values.
*While this app can calculate Ze, Ze values should only be obtained by direct measurement or by inquiry, not calculated. It is best practice to directly measure R1+R2 and Zs values.
- Zs, Ze and R1+R2 calculations with instant results!
- Free Download
- Calculate R1+R2
- Calculate Zs
- Calculate Ze*
Simple, slightly faster than a calculator time is in short supply nowadays.
Great little app. Very handy.
Simple helpful app to make calculations faultless.
Great app and very useful.
R1+R2 Zs CALCULATIONS
If you have multiple R1+R2 or Zs calculations to complete this app can help by saving time, for example, when calculating R1+R1 enter your Ze and Zs values and calculate, then for the next calculation just update the Zs value and calculate again.
- Quick n Easy
- Saves Time
- Calculate Zs from R1+R2 and Ze
- Calculate R1+R2 from Zs and Ze
Enter any two values to calculate the remaining value.
R1+R2 FROM Zs
To calculate R1+R2 from Zs enter your measured Zs and measured Ze values, then hit “Calculate”.
Calculating R1+R2 or Zs is a very simple calculation but if you have multiple calculations to do then that’s where this app can speed up the process.
- Zs (Earth Loop Impedance).
- Ze (External Earth Loop Impedance) – not recommended to calculate.
Enter any two values to calculate the other!
To Calculate R1+R2:
R1+R2 = Zs – Ze
Zs FROM R1+R2
To calculate Zs enter your measured Zs and measured R1+R1 values.
To Calculate Zs:
Zs = Ze + R1+R2
For maximum Zs values see our Max Zs Values App.
Note: Ze should not be calculated, the Ze should only be obtained by direct measurement with the appropriate test equipment and by following the approved procedures.
FREQUENTLY ASKED QUESTIONS
What is Zs?
Zs is the earth loop impedance of an electrical circuit.
What is Ze?
Ze is the earth loop impedance external to the electrical installation.
How to Calculate R1+R2
To calculate R1+R2 we can use this formula, Zs – Ze = R1+R2
How to Calculate Zs
To calculate Zs we can use this formula, Ze + R1+R2 = Zs
Demo video may show an older version of the app
Tablets and Phones
OPTIMISED FOR MULTIPLE SCREEN SIZES
This R1+R2 Zs Ze Calculator is optimised to work on all screen sizes and resolutions.
- Easy to use
- Preset R1+R2 Zs formula
- Quick and instant results
- Dedicated support team