Tag: Inspection

This diagram provides guidance for checking the continuity and polarity of ring final circuit conductors with unintentional spurs for compliance with Regulation 612.2.2. This should be viewed as a continuation of the post: Checking continuity of a ring final circuit with no spur. Ensure installation, or appropriate part of it, is securely isolated, and proved to be so, before proceeding. Measurement to be taken at each and every socket outlet. Measured values…

This diagram provides guidance for checking the continuity and polarity of ring final circuit conductors with no spur for compliance with Regulation 612.2.2. This should be viewed as a continuation of the post: Checking the continuity of a ring final circuit. Ensure installation, or appropriate part of it, is securely isolated, and proved to be so, before proceeding. Cross-connect the incoming phase with the outgoing circuit protective conductor (CPC) of the circuit and…

This diagram provides guidance for checking the continuity of ring final circuit conductors for compliance with Regulation 612.2.2. This should be viewed as step two to the post: Checking the continuity of live and protective conductors. Ensure installation, or appropriate part of it, is securely isolated, and proved to be so, before proceeding. Cross-connect the incoming neutral conductor with the outgoing phase of the circuit, and vice versa. Measure the resistance phase…

This diagram from Megger will walk through the process of checking the continuity of live protective conductors for compliance with Regulation 612.2.2.   Ensure installation, or appropriate part of it, is securely isolated, and proved to be so, before proceeding. Measure resistance of each loop in turn of phase, neutral and circuit protective conductors and record measured data, r1, rn and r2 respectively. Where the CPC is the same cross-sectional area…