Jump to content

Talk Electrician Forum uses cookies. Read the Privacy Policy, Terms and Conditions and Disclaimer for more info. To remove this message, please click the button to the right:    I accept the use of cookies

Welcome to Talk Electrician Forum

Welcome to Talk Electrician Forum, the UK's Friendliest Electrical forum on the internet, whilst you can view all our posts and topics like most online communities you must register to post (reply, or ask a question) in our community, but don't worry this is a simple free process that requires minimal information for you to signup. We do have different membership levels (called silver and gold) as a subscription service, BUT, this is an extra, and not needed, So please feel free to join for FREE, and then decide if you like our community, and would perhaps like to subscribe to any of our our extra services. Our members offer the best advice in the electrical industry including DIY,Domestic,Commercial,Industrial,Renewables,Health and Safety issues and Control and Automation.

Be a part of Talk Electrician Forum by signing in or creating an account.
  • Start new topics and reply to others
  • Subscribe to topics and forums to get automatic updates
  • Get your own profile and make new friends
  • Customize your experience here
Guest Message by DevFuse
 

Photo
- - - - -

Conduit calcs


  • Please log in to reply
11 replies to this topic

#1 bhamoggy

bhamoggy

    Senior Member

  • Bronze Member
  • 120 posts
Offline

Posted 06 April 2011 - 04:02 PM

Could someone please go thru how to work out conduit sizes plz.
An example to follow would be great too including a bend or two
Actually, if someone could use this example, was from 302 exam the other day.
What is the conduit size for 6 x 6mm cables in a 10 metre run with 2 bends


Thanks guys

#2 Zeespark

Zeespark

    Distinguished Member

  • Gold Member
  • 3,751 posts
  • LocationViva La Chesterfield, United Kingdom
  • Skills:General All Rounder, Domestic
  • Training:Other
  • Employment:Other
  • Country:United Kingdom
Offline

Posted 06 April 2011 - 05:53 PM

The OSG has all the figures needed within it to work this stuff out bud.

Andy

#3 hasan

hasan

    Junior Member

  • Bronze Member
  • 19 posts
Offline

Posted 06 April 2011 - 09:09 PM

Could someone please go thru how to work out conduit sizes plz.
An example to follow would be great too including a bend or two
Actually, if someone could use this example, was from 302 exam the other day.
What is the conduit size for 6 x 6mm cables in a 10 metre run with 2 bends


hi mate not 100 % sure but here goes: onsite guide pages 117 to 120 relate to conduits, 6mm csa cable factor is 58-table 5c
6* 58=348. using table 5D 10m run with 2 bends 261-474 shows 32mm conduit size.348 is less than 474 so 32mm conduit should be ok. Would be glad if someone could let us now if that is right or wrong.I've got my 302 exam in june.So still learning this module.Look through pages 117-122.Hope it helps.cheers

Thanks guys

hi mate not 100 % sure but here goes: onsite guide pages 117 to 120 relate to conduits, 6mm csa cable factor is 58-table 5c
6* 58=348. using table 5D 10m run with 2 bends 261-474 shows 32mm conduit size.348 is less than 474 so 32mm conduit should be ok. Would be glad if someone could let us now if that is right or wrong.I've got my 302 exam in june.So still learning this module.Look through pages 117-122.Hope it helps.cheers

#4 NozSpark

NozSpark

    Seaman stains™

  • Bronze Member
  • 9,475 posts
  • LocationNorth Wales Riviera
  • Skills:Domestic, Commercial, Agricultural
  • Training:Time Served, Apprenticeship, Other
  • Employment:Self Employed
  • Country:United Kingdom
Offline

Posted 06 April 2011 - 09:18 PM

The theory looks right, but I can't comment on the figures as my books are in the van

#5 bhamoggy

bhamoggy

    Senior Member

  • Bronze Member
  • 120 posts
Offline

Posted 06 April 2011 - 09:35 PM

Nice one hasan, seeing the workings easy to follow, our tutors never showed us and needless to say, up pops a conduit calc in the 302 exam

#6 batty

batty

    Snoopy™

  • Gold Member
  • 10,998 posts
  • Country:United Kingdom
Offline

Posted 06 April 2011 - 09:49 PM

Not sure of the answer but I thought there was cakes about was feeling a bit hungry so came in for a quick look then realised it was conduit calcs

#7 bhamoggy

bhamoggy

    Senior Member

  • Bronze Member
  • 120 posts
Offline

Posted 07 April 2011 - 10:43 AM

Not sure of the answer but I thought there was cakes about was feeling a bit hungry so came in for a quick look then realised it was conduit calcs


Lol

#8 GeoffreyBubbles

GeoffreyBubbles

    Junior Member

  • Bronze Member
  • 8 posts
Offline

Posted 07 April 2011 - 03:21 PM

Hi, I have Uploaded three Conduit Calcs papers to the Education Section, They are very good and very easy to learn from. Cheers!! :)

#9 Admin

Admin

    Forum Founder

  • Gold Member
  • 10,576 posts
  • Country:United Kingdom
Offline

Posted 07 April 2011 - 03:52 PM

Hi, I have Uploaded three Conduit Calcs papers to the Education Section, They are very good and very easy to learn from. Cheers!! :)



Unfortunately, I have had to delete the files that you uploaded to our download area.

The reason I had to do this is that they are copyrighted material.

#10 bhamoggy

bhamoggy

    Senior Member

  • Bronze Member
  • 120 posts
Offline

Posted 09 April 2011 - 07:24 PM

Could you email them to me as there's a copyright issue:
bhamoggy@gmail.com

Thanks

#11 sammyjd

sammyjd

    Junior Member

  • Bronze Member
  • 9 posts
Offline

Posted 02 February 2012 - 07:54 PM

hi
:Blushing i dnt mean to jump on the band wagon but i really am struggling and would appreciate it if you could also email them to me please i was at college today and i just got fobbed off and told its hit and miss 8-/
sammyd88@hotmail.co.uk
thanks

#12 Technician

Technician

    Distinguished Member

  • Bronze Member
  • 1,458 posts
  • Training:Time Served, Apprenticeship, Other
  • Employment:Employed
  • Country:United Kingdom
Offline

Posted 03 February 2012 - 08:18 AM

Just as a comment I am not sure that the example
from the 302 exam really tests the candidate's knowledge.
If you look at the tables you can see that conduit is
suitable up to a maximum length with a maximum number
of bends (4).
A suggestion might be that the calculation is made a little
simpler and then the second part asks what would happen
if there was a change in the design, the outcome to which
was consideration of trunking as a preference.
Others have had thoughts along similar lines.




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users