30kw boiler cable calculations

[meggerlover]

Hi guys just a quick check in my calculations for a quote I'm doing

15meters clipped direct

30,000w divided by 400v
= 75a per phase

im using sy cable and think 16mm 5 core is best

What you guys think

 

[Carlosfandango]

cable and job completed since original post

So you submitted a price, got it accepted and completed the job today?

 

[Carlosfandango]

Not a bad days work!

 

[meggerlover]

Not a bad days work!

yes it was only 15m of cable in an empty factory

 

[meggerlover]

I see.... what size did you go for in the end ?

went for 10mm 5 core,6mm was borderline

 

[Andy78]

Pics of the finished job ?

 

[Geordie Spark]

He wants a flexible cable, but instead he's chosen a screened control cable.

H07.....

I bloody give up!

Don't despair .... your efforts were not entirely wasted!!

Somewhere amongst that lot you answered a question that I have been meaning to ask for a while and now I have the answer I don't need to ask and risk having to trawl through a possible 88 pages of guff so Thank You for that!

 

[meggerlover]

Pics of the finished job ?

no pictures :S its a saturday

 

[cprfenom]

went for 10mm 5 core,6mm was borderline

Will you be paying Tel for doing your calculations for you? I hear he likes beer, wooden wheels and he also needs funds to learn to speak proper English as he's from North West...

 

[telectrix]

Bernard Cribbins Hole In The Ground - YouTube

 

[meggerlover]

Will you be paying Tel for doing your calculations for you? I hear he likes beer, wooden wheels and he also needs funds to learn to speak proper English as he's from North West...

already gave tel thanks for pointing out my error i divided by 400v instead of 230 v on the per phase current

 

[Geordie Spark]

Will you be paying Tel for doing your calculations for you? I hear he likes beer, wooden wheels and he also needs funds to learn to speak proper English as he's from North West...

The language issue is in hand and success is imminent - he's enrolled on a Larn yersel Geordie course. In just 5 weeks time and £5,000 lighter he'll be speaking it like a native!

 

[telectrix]

ya bloody scally. yer due furra bath in the mersey

 

[Pete999]

s.......

Tel I was talking to my lad today, it transpired according to hin that I'm a sarky so and so but mate I aint a patch on you, your hard to beat "s" indeed nice one

 

[cprfenom]

Send him to Birkenhead!! He will almost feel at home! Is the pyramid centre still there?

 

[telectrix]

dunno. i'm due a visit soon . there's a WWII u-boat on the dock that you can actually go in, so i hear.