Quick Answer
The selv circuit touch voltage estimation under insulation fault computes touch_voltage from the input values you provide.
Calculator
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Explore ToolFusionResult Interpretation
SELV circuit touch voltage estimation under insulation fault computes touch_voltage in V using the defined engineering formula and the input values provided. touch_voltage is expressed in V. No universal acceptance threshold is defined by this calculator.
Worked Example
default_test
Given:
- source_voltage = 230
- body_resistance = 500
- circuit_impedance = 100
- insulation_resistance = 1000000
Expected Result:
- touch_voltage = 0.11493104137517
Engineering Interpretation:
Under the given input conditions, the calculated result is: touch_voltage = 0.11493104137517 V.
The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from deterministically validated test cases.
Formula / Method
touch_voltage = source_voltage * body_resistance / (body_resistance + insulation_resistance + circuit_impedance)touch_voltage.
Variables
| Symbol | Label | Role | Description |
|---|---|---|---|
| source_voltage | source_voltage | INPUT | source_voltage |
| insulation_resistance | insulation_resistance | INPUT | insulation_resistance |
| body_resistance | body_resistance | INPUT | body_resistance |
| circuit_impedance | circuit_impedance | INPUT | circuit_impedance |
| touch_voltage | touch_voltage | OUTPUT | touch_voltage |
Calculation Steps
- Enter the source_voltage in V.
- Enter the insulation_resistance in Ω.
- Enter the body_resistance in Ω.
- Enter the circuit_impedance in Ω.
- Read the touch_voltage (V) from the results.
Frequently Asked Questions
What does this calculator calculate?
The SELV circuit touch voltage estimation under insulation fault estimates touch_voltage based on the input parameters you provide
Why is source_voltage important in this calculation?
source_voltage is directly proportional to touch_voltage. When you enter source_voltage in V, the calculator uses it in the engineering formula to compute the output
How should I interpret the result touch_voltage?
The calculator outputs touch_voltage in V. The result is computed directly from the input values using the defined engineering formula
What units should I use for the inputs?
Enter each value in the units shown next to the input field: source_voltage (V), insulation_resistance (Ω), body_resistance (Ω), circuit_impedance (Ω). Make sure all inputs use the specified units for consistent results
What assumptions does this calculator use?
This calculator uses automatically validated engineering formulas. Results are approximate and should be validated against site-specific conditions, applicable codes, and professional engineering judgment
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