Dave what you are doing on this platform is absolutely fantastic. I have learnt so much that I will buy you a drink when I pass my 18th edition and secure my next job
Keep learning, its a great trade to be in. It's taken me around the world several times. Learn a little every day, at the end of the year you will not be the same person. Good luck. Make mine a pale ale. Dave.
The table shows 800A for a disconnect of 0.4s, where did you get 750 from? That will give a longer delay time between 0.4s and 1s. Also the table at 11:09 has different values to ones you've just shown? You showed 100A needed an Ia of 1200, why are we now calculating for 1000A?
Whilst the first example is a little bit confusing to me, using the formula given and the values needed to obtain a 0.4 second disconnection time, I was expecting something along the lines of Zs = 230v x0.95 /800 = 0.27 or 0.273125 (If you really want to be precise) but 750 Ia? I'm not exactly sure where that number is coming from since it is not in the table. Could just be a simple mistake that can easily be corrected. However, to the second part of your question, the Ia for a 100A System E and G fuse is 1000A, not 1200. That is for a BS 3036 Fuse which is different to the BS88-2 system E and G. If you wanted a 0.2 disconnection time with the BS88-2 system E and G then the Ia for a 100A rated fuse would be 1200A. Hope this helps.
Hi. My main fuse is 80amp. Just worked out my maximum demand and it’s coming to 102.4. I’m currently building a portfolio so it’s got to be by the book so what is the procedure for this issue? Many thanks.
Dave what you are doing on this platform is absolutely fantastic. I have learnt so much that I will buy you a drink when I pass my 18th edition and secure my next job
Keep learning, its a great trade to be in. It's taken me around the world several times.
Learn a little every day, at the end of the year you will not be the same person.
Good luck. Make mine a pale ale.
Dave.
Thanks for the information as always Dave, helping us to keep a step ahead👌🏾 Hope the treatment went well! 🙏🏽
Thanks for the support, appreciated. Long job I'm afraid. Just had another week of it. I'll beat it. Thanks for asking.
Brilliant explanation as ever Dave, thanks for sharing👍👍
Very welcome, thank you. Dave.
Think you mean divide by 800 not 750. But as ever, brill video!
That's it. My typo. Thanks for watching. Appreciated.
The table shows 800A for a disconnect of 0.4s, where did you get 750 from? That will give a longer delay time between 0.4s and 1s. Also the table at 11:09 has different values to ones you've just shown? You showed 100A needed an Ia of 1200, why are we now calculating for 1000A?
Also confused by these values that were chosen to do the sums?
Me too!
Whilst the first example is a little bit confusing to me, using the formula given and the values needed to obtain a 0.4 second disconnection time, I was expecting something along the lines of Zs = 230v x0.95 /800 = 0.27 or 0.273125 (If you really want to be precise) but 750 Ia? I'm not exactly sure where that number is coming from since it is not in the table. Could just be a simple mistake that can easily be corrected. However, to the second part of your question, the Ia for a 100A System E and G fuse is 1000A, not 1200. That is for a BS 3036 Fuse which is different to the BS88-2 system E and G. If you wanted a 0.2 disconnection time with the BS88-2 system E and G then the Ia for a 100A rated fuse would be 1200A. Hope this helps.
He made a mistake, was supposed to write 800.
Yes, I should have written 800A. It was along week on the cancer treatment. Thanks for the heads up, appreciated.
800A but you calculated 750A how it work can you explains please dave.
Very nice video thank you again and again
My typo, should be 800A. great that you spotted that. Dave
Hi. My main fuse is 80amp. Just worked out my maximum demand and it’s coming to 102.4. I’m currently building a portfolio so it’s got to be by the book so what is the procedure for this issue? Many thanks.
Don't forget about diversity, take a look at this video.
ruclips.net/video/TV2IZtmydm4/видео.html
👍thankyou
Very welcome. Thank you.
P r o m o S M
Thanks for watching.