Ring Final Testing - Why (r1+r2)/4 is R1+R2.
Explanation of why the resistance of the line and protective conductors added together and divided by 4 is the same as R1+R2. The explanation is covered in Guidance Note 3, however not in BS7671 or the On Site Guide. Ring final circuit tests in more detail: • Tests for Ring Final Circuits ► Support this channel: Patreon: / jwflame PayPal Donations: https://xo4.uk/?PPP Amazon: https://amzn.to/30bKt4v (As an Amazon Associate I earn from qualifying purchases) ► Social Media: Twitter: / jwflame Facebook: / jwflame Instagram: / jwflame ► Contact info, sending stuff in: etc.: https://xo4.uk/?YTT ► Cryptocurrencies: Dogecoin DOGE: DShDwFJyXKqCddwVsuCWWYnGpuhFrBMyam Litecoin LTC: LXQ4QRqztUq1KBQccxeLDivrdnas5fcHrc Nyancoin NYAN: KUiaPqoRcNnhXHcfWrgEYD5aZqwocLnrwf Bitcoin BTC: 17JyfSsQuUi1tHow26QxUvsh45kP6vsK63 ► Website - More on this video and many other subjects Website: https://www.flameport.com
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