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Wiring Rules AS/NZS 3000

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FAQ

  1. What does the Maximum Demand Calculator do?

    The Maximum Demand Calculator calculates Maximum Demand, according to the rules in Appendix C of the Wiring Rules (AS/NZS 3000:2007).
    At the moment it only performs calculations for Houses and Units. In the near future it will also be able to calculate maximum demand for other installation types, like offices, factories, hotels, etc.

  2. How can I use the Maximum Demand Calculator?

    The Maximum Demand Calculator operates over the internet, so you can use it from your internet connected computer or mobile phone (including iPhones). You don't have to download or install anything. Just click on Register, and then go to "Add new job" to get started.

  3. What does the Maximum Demand Calculator cost?

    The Maximum Demand Calculator is free.

  4. Who can use the Maximum Demand Calculator?

    Anyone can register and use the Maximum Demand Calculator. However all electrical installations must be performed by a licensed electrician.

  5. Who is behind the Maximum Demand Calculator?

    The Maximum Demand Calculator was created by David Webster with inspiration from Ben Franz.

    David Webster is a professional software developer, with a Bachelor of Applied Science. He lives in Berwick, Victoria with his wife Jess and two dogs.

    Ben Franz is an A-Grade Electrician, he lives in country Victoria with his family.

  6. Can I rely on the calculation performed by the Maximum Demand Calculator?

    The Maximum Demand Calculator is still undergoing testing, so you need to double check its calculation results against the official reg book (you can buy the reg book from the SAI Global Infostore). If you find any mistake made by the Maximum Demand Calculator, please use the Contact link to let David know.

  7. Where can I get a copy of the official standards?

  8. It appears that the Maximum Demand Calculator does not calculate 3 phase loads correctly when they are entered as watt values. Is this correct?

    Two people have now mentioned this to me. I will need to investigate the proper way to calculate 3 phase loads and update the Maximum Demand Calculator.

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