Cable Grouping Derating Calculator
Actual independently verified baseampacity×applicable grouping factor, not fabricated cable table or inferred code capacity. Actual independently established compatible SI units/model context; conditional arithmetic, not code compliance, engineering design or safe operation approval.
Description
Grouping derating applies an independently applicable factor to a verified base ampacity.
Grouping derating applies an independently applicable factor to a verified base ampacity.1
This tool calculates the adjusted arithmetic value without providing a conductor table or selecting code factors.
When to use Cable Grouping Derating Calculator
Use this tool to calculate the adjusted arithmetic value without providing a conductor table or selecting code factors.
How to use Cable Grouping Derating Calculator and how it works
- Prepare callerVerifiedBaseAmpacityAmps, callerApplicableGroupingFactor, with the units, conventions and assumptions below.
- Enter the required fields and run Cable Grouping Derating Calculator.
- Read result.value using the output definitions below.
- Correct any rejected inputs and rerun; interpret the result within the stated model and its assumptions.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| callerVerifiedBaseAmpacityAmps | Caller Verified Base Ampacity Amps. Use the units and matching context stated in the calculation below. | number | Required; strictly positive; finite; other constraints below |
| callerApplicableGroupingFactor | Caller Applicable Grouping Factor. Use the units and matching context stated in the calculation below. | number | Required; fraction from 0 to 1; finite; other constraints below |
Supply positive base ampacity in amperes and an independently applicable grouping factor from zero to one inclusive. Return their product in amperes. No conductor size, installation arrangement or code derating factor is selected.
deratedAmperes=baseAmpacity*groupingFactor Apply the input ordering, units and branch conditions stated above.
| Output field | Meaning | Value type |
|---|---|---|
| result | Object containing the calculated or selected fields below. | object |
| result.value | Conditional grouping-derated ampacity in amperes. | number |
{
"input": {
"callerVerifiedBaseAmpacityAmps": 100,
"callerApplicableGroupingFactor": 0.5
},
"output": {
"result": {
"value": 50
}
}
}Limitations and assumptions
The calculation uses the supplied observations and model inputs. It does not collect measurements, select a reference population or coefficient, or establish that the model applies to the actual case. The stated branch conditions and output units remain part of the result.
All fields require explicit values. Unexpected fields, wrong types, nonfinite numbers and sparse arrays are rejected. Alignment, bounds and supported-token rules are explained above; extremely large inputs or nonfinite results can also fail. Input errors differ from successful false comparisons, unavailable-domain flags and empty match lists.
Alternative or Complementary methods
Use Power Factor Penalty Calculator for a complementary operation: A tariff penalty amount depends on an independently applicable rate and a defined minor-currency-unit charge.
Use Electrical Demand Load Calculator for a complementary operation: A coincident electrical-demand ledger combines connected powers with independently applicable demand fractions.
References
-
Cable Grouping Derating Calculator — tool.io
Similar or alternative tools
- Power Factor Penalty Calculator
A tariff penalty amount depends on an independently applicable rate and a defined minor-currency-unit charge.
- Electrical Demand Load Calculator
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