12V DC is brutal for voltage drop. A 10m run of 6mm² at 12V loses 10% of your power.
Standard charts assume an ambient temperature of 40°C or 45°C. In roof spaces in the Northern Territory or Western Australia, temperatures can soar higher than that. In these cases, the cable must be larger to handle the same load. electrical cable size chart amps australia
Free Cable Sizing Calculator AS/NZS 3008.1.1 | ELEK Software 12V DC is brutal for voltage drop
Whether you are a DIY enthusiast rewiring a shed, an apprentice electrician studying for your license, or a homeowner trying to understand your switchboard, one rule is absolute in electrical work: electrical cable size chart amps australia