BG 804 TRIPLE POLE FAN ISOLATOR PULLCORD SWITCH

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If I wish to isolate the fan, am I correct in saying I will have to disconnect the cable from the fan to spot 1 and and run a new twin core and earth (switched live/neutral) from the fan towards the pull switch (actually isolator) or should I just disconnect both (green) cables and run 3 core and earth instead? Clearly marked with a fan symbol and "Isolator", this 10A, 3 pole pullcord fan isolator switch is supplied with fixing screws and covers and benefits from clear terminal markings. However the existing pull cord I have does not have an insert or screw at L2 to secure wires with? I'm not sure if they were there before I started, or not? This issue has been discussed loads on this forum, I see Seneca's post above regarding this but would bet that more often than not, a 3A fused spur is not used I've seen plenty of bathrooms with fan isolator switches fitted, usually high up next to fan or above door and out of zones

And this switch will be a double pole and the other side will isolate the fan when the switch for light is operated by breaking the feed from light to fan,this giveing full isolation Okay, at the upstairs fan there are two twin core and earth cables, one is using the live (brown) and neutral (blue) in the correct connections, the other using the live (brown) in the switched live connection. Any wires I have not mentioned are snipped flush with the grey outer sleeving. At the pull cord there are four cables, only the live (brown) wire is being used in the switched live connection, the other wires on that cable are snipped flush with the grey outer sheething. I believe the electrician used two twin core and earth cables instead of one three core and earth cable to wire the fan to the pull cord. I know that they could have fitted a light switch outside the bathroom to get rid of one pull cord but surely would have been neater to fit a regular isolator switch either in bathroom (outside of zones) or just outside bathroom door Is she being fobbed off here ? I think so and would you guys fit a pull cord isolator, resulting in 3 pull cords So, with one of the four cables identified above, that leaves three cables, another of these cables must be from the fan, leaving two? Should there not be two from the electrical circuit, one for the lights and two (as described above) from the fan, so five in total?

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I may take the issue up with the bathroom firm on behalf of my sister, just wanted to make sure that I have the correct facts My sister has just had her bathroom gutted and refitted by a local firm, generally a really nice job but just a couple of minor niggles to sort out The only other terminals are com and what appears to be a symbol with a number of horizontal deminishing lines with one vartical line above, or otherwise, depending on how you look at it? Have read this issue before regarding M I and fan protection via 3A fuse. No sign of this and as I'm sure is pretty usual, the supply has been taken from the lighting circuit and so protected with a 6A breaker at CU

Fan does have an over run timer and the pull cord switch is a 3 pole isolator made for fans (even has a fan motif stamped on it) so not an issue there regarding full 3 pole isolation Then permutations take place some people do not like the fan on every time they enter the bathroom as at night they can disturbe people and want an isolation switchFirst of all is it a run on fan that has been installed if it was then the sparky should have fitted an isolater for isolating live feed to fan run on facility out of zone areas As described above, I connected the fan through the fan isolator switch to the pull cord with 1mm three core and earth cable.