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Earth conductor CSA and four-core cable

Published: 10 March 2019 Category: Q&A

What should be the earth conductor cross-sectional assessment be running four-core?

Earth conductor CSA and four-core cable

This Q & A is one of thousands posted in our Technical Expertise area, and answered by our Voltimum Experts.

Question: 

If you are running a 300 sqmm four-core cable to another building on site, what should be the earth conductor cross-sectional assessment (CSA) be?

Answer: 

The size of a protective conductor should be determined in accordance with regulation 543.1.1 and should be either calculated in accordance with regulation 543.1.3 or selected in accordance with regulation 543.1.4 and Table 54.7.