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In the Forum: Audio Discussions
In the Thread: It’s mad, mad, mad... electricity.

Post Subject: Solid core wirePosted by JOHNR on: 11/24/2015

This is a fact but, you need to review literature relating to lightning/surge arresting systems. It is given in books such as the FURSE system because stranded conductors DO NOT WORK in that application. Flat tapes and small solid core wire should be installed between the equipment and the ground rod or MD panel. It must also be insulated to prevent contact with concrete, soil etc.

Here in Malaysia, we have daily lightning problems and I do not recommend using a domestic ground rod system not for technical or safety reasons but because the contractors will not do as you instruct and they get it wrong. Here, ALL installations have to have a Residual Current Circuit Breaker (RCB) that will trip if a Line to Neutral imbalance occurs occurs above 15 mA. They really do save lives and I strongly recommend fitting one in series with the main feed to your system. They do not require a ground to function.

Your solid core 6mm2 is correct. Not available here which is why I use fire system plenum rated wire; it will not burn either which is useful if you do have a problem.

John R

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