Hi there, I used the single core cable as that was what the question stated. Yes, you are correct, in a standard domestic setting, T&E is used. I'm trying to expose everyone to all sorts of tables that could be used in an exam question.
Thanks for the video. I've watched many UA-cam videos on this topic but this is the first that solely uses the OSG and has clarified a few questions I had. Look forward to the series progressing and calculating conductors (and cpc) using BS 7671. Being flippant, do you think may sparks would use 16mm for a 5.5Kw shower?
Thanks for your supportive comments! I am glad to have helped you. To answer your question, if the circuit was designed as the example then yes, you must use 16mm cable. This design isn't really what you would find in the real world. The examples I use are to challenge you and expose you to all of the values that affect our calculations. I do apologise but I also get some mean enjoyment out of it 😂
We are using the same formula as page 167. It is telling you the In divide all of the C factors must be equal to or less the it value. I'm just giving the answer to this equation the symbol of iz. It is the tabulated current carrying capacity of the cable. Iz is the current carrying capacity for continuous service under particular conditions. Look on page 46 of BS7671
10:49 Why not check Table F5 multi-core? Normally domestic is using T&E multi-core cable but why you check the single core table F4? thx
Hi there, I used the single core cable as that was what the question stated. Yes, you are correct, in a standard domestic setting, T&E is used. I'm trying to expose everyone to all sorts of tables that could be used in an exam question.
Great knowledge refresher buddy. Keep up the good work
Thanks for the video. I've watched many UA-cam videos on this topic but this is the first that solely uses the OSG and has clarified a few questions I had. Look forward to the series progressing and calculating conductors (and cpc) using BS 7671. Being flippant, do you think may sparks would use 16mm for a 5.5Kw shower?
Thanks for your supportive comments! I am glad to have helped you. To answer your question, if the circuit was designed as the example then yes, you must use 16mm cable. This design isn't really what you would find in the real world. The examples I use are to challenge you and expose you to all of the values that affect our calculations. I do apologise but I also get some mean enjoyment out of it 😂
6:38 Clipped direct: Would than not be "Single Layer on Wall or Floor" row in table F3 ?
9:30 why do you no follow (OSG page 167) using it formula, but use iz instead ?
And what is z & t stand for ?
We are using the same formula as page 167. It is telling you the In divide all of the C factors must be equal to or less the it value. I'm just giving the answer to this equation the symbol of iz.
It is the tabulated current carrying capacity of the cable.
Iz is the current carrying capacity for continuous service under particular conditions.
Look on page 46 of BS7671