Using AS3008 tables is not just best practice—it is a legal requirement under the and Wiring Rules (AS/NZS 3000) . Correct application prevents:
AS3008 is organized into and rows :
The standard is divided into numerous tables based on cable construction and thermal performance. These tables provide the base sustained current-carrying capacity for cables under specific reference conditions. as3008 current-carrying capacity table
The most critical "informative feature" of the current-carrying capacity tables (Tables 4 to 15) is that they are legally designated as , whereas the calculation methods used to derive them are Normative . Using AS3008 tables is not just best practice—it
Note: These are illustrative values. Always consult the latest AS3008 standard for exact figures. as3008 current-carrying capacity table
The tables also include informative footnotes and limitations that are easily overlooked but are part of the table's feature set:
| Code | Description | |------|-------------| | | Enclosed in conduit in a thermally insulating wall | | A2 | Enclosed in conduit on a wall or ceiling (not insulated) | | B1 | Enclosed in cable trunking (perforated) | | C | Clipped direct to a surface (open air) | | D | Buried direct in ground (thermal resistivity 1.2 K·m/W) | | E | On a cable ladder or tray – horizontal, spaced | | F | Free in air (not touching any surface) | | G | In free air but exposed to sun (requires additional solar derating) |