She hesitated at that field. "Typical for Western Australia: 1.2 °C·m/W." She tapped in the value.
"No," Maya said, turning the tablet toward him. "Look. Because of the length and the heat out here, the calculator says 50 square." cable sizing calculator australia
The tin roof of the shed creaked as the afternoon sun began to bake the Pilbara region. Inside, Maya wiped sweat from her brow with the back of her hand. Spread out on the workbench were coils of XLPE cable, a dusty copy of AS/NZS 3008, and a tablet showing the blueprint for the new bore pump. She hesitated at that field
Then she found it. A clean, no-nonsense tool with a sun-bleached Australian flag logo. The form asked the right questions: AS/NZS 3008.1.1? Check. Voltage drop max 5%? Check. Soil thermal resistivity? Spread out on the workbench were coils of
Gerry grunted, putting his reading glasses on. He studied the outputs: ambient temperature correction, soil thermal resistivity, the mandatory 5% voltage drop rule. A slow smile cracked his sun-leathered face.
"Didn't trust the American ones," Maya said.
She was a third-year electrical apprentice, and her boss, Old Gerry, had given her a task that made her stomach clench: "Run the main feed. 250 metres from the switchboard to the bore. Don't undersize it, or we'll be back in summer to dig up melted rubber."