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<blockquote data-quote="mort2376" data-source="post: 534517" data-attributes="member: 25787"><p>The majority of new rcds fitted in the last 2 years will be type A. These are now the required type for most "domestic" circuits.</p><p></p><p>AC type are still OK to be installed if the circuit has nothing installed that can/will/may produce a dc feedback.</p><p></p><p>Type B and F rcds are more specialist and are used in circuits with higher dc feedback. EV chargers being an example. However some manufacturers of EV chargers fit these in the box anyway.</p><p></p><p>If your doing an Eicr and come across an AC rcd/rcbo on a circuit that can/may/will produce dc feedback then its a C3 as it complied when installed but doesn't comply with current BBB standards.</p><p></p><p>To confuse matters some manufacturers have been making rcd/rcbos to type A standards, but badging them as AC so electricians would not get confused. </p><p></p><p>Does that help clear the mud for anyone ??????????</p></blockquote><p></p>
[QUOTE="mort2376, post: 534517, member: 25787"] The majority of new rcds fitted in the last 2 years will be type A. These are now the required type for most "domestic" circuits. AC type are still OK to be installed if the circuit has nothing installed that can/will/may produce a dc feedback. Type B and F rcds are more specialist and are used in circuits with higher dc feedback. EV chargers being an example. However some manufacturers of EV chargers fit these in the box anyway. If your doing an Eicr and come across an AC rcd/rcbo on a circuit that can/may/will produce dc feedback then its a C3 as it complied when installed but doesn't comply with current BBB standards. To confuse matters some manufacturers have been making rcd/rcbos to type A standards, but badging them as AC so electricians would not get confused. Does that help clear the mud for anyone ?????????? [/QUOTE]
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