Maximum Demand As3000 Online

The most common method for new builds. It uses standardized tables (Table C1 and C2) to apply diversity factors based on load groups.

AS3000 Appendix C assumes a power factor of 0.8 for most loads. But with LED lighting and switch-mode power supplies (computers, chargers), cause neutral currents to exceed phase currents. maximum demand as3000

Used for complex or unique installations where standard tables may not accurately reflect actual usage patterns. The most common method for new builds

Without diversity: 20 + 20 + 20 + 27.8 + 20 + 15.6 + 16 = 139.4A → would require 125A or 160A main switch → larger switchboard, higher supply authority charges. But with LED lighting and switch-mode power supplies

Only valid for existing installations. Record the maximum 30-minute average current over 30 days. This overrides calculated MD but requires a certified meter.