{
  "capability_id": "electrical.watts_amps",
  "tool_id": "watts-to-amps",
  "engine": "watts-amps",
  "calculation_version": "1.4.1",
  "generated_at": "2026-09-16T22:03:43.699Z",
  "engine_build": "2026-09-10",
  "test_count": 24,
  "passed": 24,
  "failed": 0,
  "tests_summary": {
    "golden": {
      "total": 12,
      "passed": 12
    },
    "boundary": {
      "total": 4,
      "passed": 4
    },
    "property": {
      "total": 8,
      "passed": 8
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  "engine_tested": true,
  "expert_reviewed": false,
  "internally_reviewed": false,
  "review_kind": null,
  "source_checked": true,
  "reviewed_by": null,
  "reviewer_role": null,
  "last_reviewed": null,
  "expert_review": {
    "status": "optional_not_performed",
    "reviewer": null,
    "scope": [
      "formula",
      "input semantics",
      "assumptions",
      "limitations",
      "sources",
      "tests"
    ],
    "note": "Domain expert review is optional under CVP (CVP-EXP-01). Absence does not block CVP Verified. See Review policy for supplemental domain assurance."
  },
  "internal_review": {
    "status": "not_applicable",
    "reviewer": null
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  "page": "https://www.calculatorx.com/calc/electric/watts-to-amps",
  "api": "https://www.calculatorx.com/api/v1/calc/watts-to-amps",
  "schema_input": "https://www.calculatorx.com/schemas/electrical.watts_amps.input.json",
  "schema_output": "https://www.calculatorx.com/schemas/electrical.watts_amps.output.json",
  "assumptions": [
    "Balanced three-phase when 3φ (L-L) is selected.",
    "Voltage and current are RMS for AC.",
    "DC forces PF = 1; AC uses total power factor λ on real power."
  ],
  "limitations": [
    "Not for unbalanced three-phase",
    "Not for line-to-neutral three-phase as a separate mode",
    "Not a substitute for breaker or conductor sizing"
  ],
  "boundary_conditions": [
    "Zero voltage yields 0 A (or 0 W in reverse) in the shared engine — soft boundary, not a hard error code",
    "AC power_factor ≤ 0 is treated as 1 in the shared engine; UI may clamp display differently",
    "Published API schema expects volts > 0 and power_factor in (0, 1]; legacy alias pf is accepted"
  ],
  "sources": [
    {
      "title": "IEC 60050 — International Electrotechnical Vocabulary",
      "section": "Active power (IEV 131-11-42)",
      "url": "https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=131-11-42",
      "supports": "P is active power; unit watt (W). Under sinusoidal conditions P = Re S.",
      "kind": "standard",
      "accessed": "2026-09-05",
      "clause": "IEV 131-11-42"
    },
    {
      "title": "IEC 60050 — International Electrotechnical Vocabulary",
      "section": "Power factor (IEV 131-11-46)",
      "url": "https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=131-11-46",
      "supports": "λ = |P| / S; AC current I = P / (V·λ) (1φ) or I = P / (√3·V_L-L·λ) (3φ L-L)",
      "kind": "standard",
      "accessed": "2026-09-05",
      "clause": "IEV 131-11-46"
    },
    {
      "title": "IEEE Std 1459-2025",
      "section": "Real power under sinusoidal and nonsinusoidal conditions",
      "url": "https://standards.ieee.org/ieee/1459/7578/",
      "supports": "DC I = P/V; 1φ I = P/(V·PF); 3φ L-L I = P/(√3·V·PF)",
      "kind": "standard",
      "accessed": "2026-09-05",
      "publisher": "IEEE",
      "published": "2025-05-16",
      "errata_checked": true
    },
    {
      "title": "BIPM SI Brochure (9th edition, version 4.01)",
      "section": "SI units for ampere, volt, and watt",
      "url": "https://www.bipm.org/en/publications/si-brochure",
      "supports": "DC P = V·I so I = P/V; W and A unit relationships",
      "kind": "reference",
      "accessed": "2026-09-05",
      "published": "2026-06",
      "doi": "https://doi.org/10.59161/AUEZ1291"
    },
    {
      "title": "NIST Guide to the SI (SP 811)",
      "section": "Watt and ampere as SI derived units",
      "url": "https://www.nist.gov/pml/special-publication-811",
      "supports": "W as unit of power; A as unit of electric current",
      "kind": "reference"
    }
  ],
  "methods": [],
  "fingerprint": "sha256:465de46099024f3f0720f1da017640210ce5a53c84a1b15ba9e7cd2c4b68f2d3",
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      "tol": 0.01
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        "pf": 0.8
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