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Fire Alarm Panel Electrical Isolation.

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Is single pole electrical isolation suggested here even if we are going to prod and poke about inside the fire alarm panel? And, what are the two fuses removed mentioned all about? Is the lecturer confused?


Please see 41.12 onwards.

https://www.bing.com/videos/search?q=youtube+bs+5839+part+1&&view=detail&mid=92E9069FDA874942E42A92E9069FDA874942E42A&rvsmid=7BBC139314220094A9417BBC139314220094A941&FORM=VDQVAP


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    What is 537.2.6 all about then?

    I think that's just saying that where you need to open several poles of the same circuit to achieve isolation, it should preferably be done by a multipole device rather than several single pole devices.


    461.2 is what decided whether the N needs to be isolated or not (where BS 7671 applies) - although the new wording isn't anything like as clear as the previous version (to me at least).


       - Andy.
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  • 0
    What is 537.2.6 all about then?

    I think that's just saying that where you need to open several poles of the same circuit to achieve isolation, it should preferably be done by a multipole device rather than several single pole devices.


    461.2 is what decided whether the N needs to be isolated or not (where BS 7671 applies) - although the new wording isn't anything like as clear as the previous version (to me at least).


       - Andy.
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