Maximum Demand Table C1

When you are designing an electrical installation, you follow this general workflow:

The impact of Table C1 is felt directly in the cost and feasibility of an installation. Consider a small retail shop with 30 double socket outlets. The raw connected load might be 30 × 240W (a conservative appliance rating) = 7.2kW per phase. Without diversity, this would demand a 30A supply per phase. However, Table C1 typically allows a diversity factor of 0.5 for general socket outlets in commercial settings, dropping the demand to 3.6kW—requiring only a 16A supply. maximum demand table c1

Calculations using Table C1 involve assigning every load in an installation to a specific group. Common categories include: Load Group Description Typical Calculation (Single Domestic) Lighting (Standard) When you are designing an electrical installation, you

The table is organized into columns and rows to account for different installation scales and load types: Without diversity, this would demand a 30A supply per phase

This reduction translates into:

For lighting and power, "points" are counted. A double socket-outlet counts as two separate points.