# Level 3 2365 design project need info on Q3

Discuss Level 3 2365 design project need info on Q3 in the Electrician Courses : Electrical Quals area at ElectriciansForums.net

#### ajama21

Hi guys, hope you are well. I am currently doing a level 3 2365 design project hotel, swimming pool cafe and I therefore need help on what to do on Q3. If anyone can show me a direction on what to do or show an example of how to do it would be much appreciated
Thanks

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DPG
Have you looked up additional protection?

Have you looked up additional protection?
this came up but still don't know what to do .

Do you have BS7671?
Additional protection is explained in there along with special locations and their requirements.

DPG
Do you have BS7671?
Additional protection is explained in there along with special locations and
Yes I found it. Would I have to take info from bs7671 or take photos of the page selected and apply it to the assignment?

Just quote the Regulation and why you are applying it.

DPG
Just quote the Regulation and why you are applying it.
thanks for the help truly. I got one more question for Q4, on the table that is shown on the 7nth row (length in meters). for that do i measure the length of the cable from the distribution board to another point of the socket outlet for example in a hotel bedroom ? if you can clarify on what i should do then that would be much appreciated. I know I'm asking a lot but this would be a big help

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Length of circuit you need to measure using the scale on the plan including drops or rises to accessories. If the circuit has five points on a radial the distance is to the furthest. For volt drop if the circuit does not originate from the source you must include the volt drop of the sub main, either way make it clear how you came to the figure.

Length of circuit you need to measure using the scale on the plan including drops or rises to accessories. If the circuit has five points on a radial the distance is to the furthest. For volt drop if the circuit does not originate from the source you must include the volt drop of the sub main, either way make it clear how you came to the figure.
Length of circuit you need to measure using the scale on the plan including drops or rises to accessories. If the circuit has five points on a radial the distance is to the furthest. For volt drop if the circuit does not originate from the source you must include the volt drop of the sub main, either way make it clear how you came to

Length of circuit you need to measure using the scale on the plan including drops or rises to accessories. If the circuit has five points on a radial the distance is to the furthest. For volt drop if the circuit does not originate from the source you must include the volt drop of the sub main, either way make it clear how you came to the figure.
The one I labelled are the led lights for the swimming pool do I measure the lengths of all of them up to the db for the swimming pools lights which are coloured yellow that is going to the switch and till the db do I measure all of them. Can you show me what I'm doing wrong in terms of the measurements

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You neasure from the DB to the furthest point.

You neasure from the DB to the furthest point.
thanks. for actual ZS is the formula Ze+(R1+R2) ze+0.8 zdb+0.11 do you take the ze value to add whatever i get from R1+R2 instead of using the zdb value

If you are using Zdb you do not add on Ze as that is already incorporated into Zdb.

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