ElectricalValidationService class

Domain service for electrical validation according to REBT/IEC standards. Encapsulates business rules for voltage drops, impedance limits, and protection coordination.

Architecture Pattern: Factory Constructor Singleton

  • Simple instantiation: final service = ElectricalValidationService();
  • Testable: Instance methods can be mocked in tests
  • No DI container required (postponed to future refactoring)

Testing:

class MockValidationService extends ElectricalValidationService {
  @override
  String? validateVoltageDrop(...) => null; // Mock response
}

Regulatory Context: REBT (Spain)

  • Target market: Spain only
  • Standards: ITC-BT-19, ITC-BT-24
  • Future: If expanding internationally, refactor to injectable NormativeConfig

Constructors

ElectricalValidationService()
Factory constructor returns singleton instance
factory

Properties

hashCode → int
The hash code for this object.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

getMaxVoltage({double nominalVoltage = _nominalVoltage}) → double
Gets maximum acceptable voltage.
getMinVoltage({required LoadType loadType, double nominalVoltage = _nominalVoltage}) → double
Gets minimum acceptable voltage for a load type.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited
validateContactVoltage(double voltage) → String?
Validates contact voltage (touch voltage). Returns error message if invalid, null if valid.
validateLoopImpedance(double impedance) → String?
Validates loop impedance (Zs). Returns error message if invalid, null if valid.
validateRcdTripCurrent({required double tripCurrent, required double sensitivity}) → String?
Validates RCD trip current against sensitivity. Returns error message if invalid, null if valid.
validateRcdTripTime(double tripTime) → String?
Validates RCD trip time. Returns error message if invalid, null if valid.
validateVoltageDrop({required double measuredVoltage, required LoadType loadType, double nominalVoltage = _nominalVoltage}) → String?
Validates voltage drop for a given load type. Returns error message if invalid, null if valid.

Operators

operator ==(Object other) → bool
The equality operator.
inherited