#What ata chapter covers standard wiring procedures verification
644 Certification for initial verification - previously in Chapter 63, this is substantially similar, although all rewritten/rearrangedįurther details on testing and inspection will be covered in a subsequent article in this series on Appendix 6.643.11 Voltage drop - condensed significantly, although the intent is similar.643.10 Functional testing expanded with examples of specific equipment, and manually operated test facility of any installed AFDDs.643.9 phase sequence check must be done 'at all relevant points of the installation', previously unstated.643.8 note regarding RCD disconnecting within 40ms added, sentence regarding supplementary bonding complying with Chapter 41 added.addition of measured EFLI shall comply with Chapter 41.addition of carrying out an electrical continuity test before EFLI testing.(c) content expanded with more detail, although the procedures have not changed.(b) (2) note added 'see table 3a in appendix 3' which contains trip times for various RCDs.(b) (2) added 'other appropriate methods' for verification of overcurrent protective devices.added paragraph starting 'where the effectiveness of the protective measure has been confirmed.(a) (2) note added 'see table 3a in appendix 3' which contains trip times for various RCDs.(iii) amended to 'wiring has been correctly connected throughout the installation', previously 'connected to socket outlets and accessories'.addition of sentence 'where single pole switching devices are not permitted in the neutral.
now includes a test at the origin where relevant and before the installation is energised.old 612.4.5 deleted (basic protection by a barrier or enclosure provided during erection).added 'when measured values show evident differences between circuits, further investigation is required'.Notes and some other text rearranged, some notes combined with the main text.FELV test wording also refers to using the same test voltage as that applied to the primary side of the source.FELV testing added under table 64, this was previously separate in 612.3.4.separate regulation 612.2.2 'continuity of ring final circuit conductors' removed.requirements for test voltage/current removed (previously 4-24V o/c and 200mA).tests for protective conductors and ring final circuit conductors added as (i) and (ii).reworded, previously title included 'main and supplementary bonding', now content includes 'connections to exposed conductive parts and extraneous conductive parts'.(xx) new, measures against electromagnetic disturbances.(xix) new, selection and erection of suitable SPDs where required.(xvii) new, selection and erection or wiring systems.(iv) additional item 'exposed conductive parts are connected to the earthing arrangement'.642.3 (iii) routing of cables in 'safe zones' changed to 'prescribed zones'.When purchasing, note that many older editions are still available, these have different coloured covers. While much of the content is unchanged other than it's location within the chapters, there are various smaller changes and these are described in the video and the text section below. Content previously in Chapter 63 has been divided and added to the end of both 64 and 65. Two new chapters have been added, with 64 containing content previously in 61, and 65 being the equivalent of the old 62.
The main change in Part 6 is that the entire content in chapters 61, 62 and 63 has been removed. This video and the text below cover the main changes in Part 6 - Inspection and Testing. 18th edition with blue cover, published in July 2018 and applicable from 1 January 2019.