Applied ratings and power quality
Concept articles for IP ratings, voltage unbalance, harmonic distortion and generator starting kVA.
Applied ratings and power quality project basis
Concept articles for IP ratings, voltage unbalance, harmonic distortion and generator starting kVA. These articles clarify Australian electrical terminology, supply assumptions and equipment context before the topic is applied in calculators, tables, charts or project notes.
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Confirm the nominal 230/400 V a.c. or project-specific voltage basis, 50 Hz context where applicable, phase arrangement, metric units, manufacturer information, DNSP or authority conditions and current project documents before applying a result.
Check that the definition, supply basis, equipment label and project context still match the calculator, table or chart being used.
Records covered
- IP ratings for Australian electrical equipmentHow IP codes describe solids and water ingress context for Australian electrical equipment, enclosures and outdoor lighting.2026-07-15 · Applied ratings and power quality
- Voltage unbalance in Australian power-quality checksHow voltage unbalance uses comparable three-phase voltage readings, average deviation and an entered threshold basis.2026-07-15 · Applied ratings and power quality
- Harmonic THD in Australian power-quality checksHow total harmonic distortion uses fundamental RMS, harmonic RMS rows, dominant harmonic and an entered threshold basis.2026-07-15 · Applied ratings and power quality
- Generator starting kVA in Australian backup-power planningHow generator starting kVA uses running load, selected motor, starting method, multiplier and voltage basis.2026-07-15 · Applied ratings and power quality
Review before applying
Applied ratings and power quality articles explain terms and concepts before a calculator, table or chart is used. Keep the explanation connected to Australian terminology and the project record being prepared.
Recheck the selected article whenever the supply arrangement, equipment data, route length, tariff basis, measurement method or project document set changes.