[VALIDATION] Create test case from Annex D.1 (MV 4160V Example)

[sramharack]

What to Validate

Complete calculation against IEEE 1584-2018 Annex D.1 worked example.

IEEE 1584-2018 Reference

• Annex D.1 (pages ~58-62)

Test Inputs (from D.1-D.7)

• Ibf = 15 kA
• Voc = 4.16 kV
• Gap = 104 mm
• Working distance = 914.4 mm (36")
• Arc duration = 197 ms
• Enclosure = 508mm × 508mm × 508mm (20" cube)
• Config = VCB

Expected Results (fill in from Annex D)

• Iarc_600 = ___ kA (D.8)
• Iarc_2700 = ___ kA (D.11)
• Iarc_14300 = ___ kA (D.14)
• Final Iarc = ___ kA (D.17)
• VarCf = ___ (D.18)
• Iarc_min = ___ kA (D.19)
• CF = ___ (D.22)
• E_600 = ___ J/cm² (D.24)
• E_2700 = ___ J/cm² (D.26)
• E_14300 = ___ J/cm² (D.28)
• Final E = ___ J/cm² (D.32)
• AFB = ___ mm (D.39)

Acceptance Criteria

• All intermediate values match within 1%
• Final values match within 1%
• Test added to tests/test_ieee1584.py