Rules and Guidelines
Want to participate in the discussions? Please read our Community Rules and Guidelines. Need some help? Visit Support and Answers.

  • State Not Answered
  • Locked Locked
  • Replies 10 replies
  • Subscribers 32 subscribers
  • Views 574 views
  • Users 0 members are here
Options
You may also be interested in
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Fridays rumination

Johno12345
I have been thinking (yes, smoke has been rising)


I'm not an electrician, but  am in charge of our facility and have a decent knowledge of how things work



Anyway, I want to have some distribution equipment replaced due to the age and condition of it.


I always specify Schneider Acti 9 boards or Powerpact 4 boards


These boards wont require anything bigger than 63a 3ph, so ill be ok with an Acti 9 board, but the total load is likely to be around 200 amps over an 18 way board. I was thinking that sounds a lot to put through a DB as a continuous load, but the website implies that its going to be fine. Is this right? I'm visualising a heating effect etc, so what point do you stop with a DB and go to a panelboard? Usually, if I need to supply something larger than 63a, I know ill need to have a panel board and can budget accordingly


Anyway, as I said, I'm just thinking out loud in preparation for budgeting
Parents
  • Former Community Member
    0 Former Community Member
    Well, in old skool terms, I would run a minimum of a 300A supply (and ideally a 400A supply) to a short busbar chamber and fit the 250A boards close coupled to it - and then design to limit the demand on each board to say 125A (eg 4Way Type B with 2 x 63A TP MCB's)


    That's still probably cheaper than a 400A rated MCCB panel with a lot of 63A outgoing ways - depends a bit on the capability of the "house" sparks though to assemble it properly


    Regards


    OMS
Reply
  • Former Community Member
    0 Former Community Member
    Well, in old skool terms, I would run a minimum of a 300A supply (and ideally a 400A supply) to a short busbar chamber and fit the 250A boards close coupled to it - and then design to limit the demand on each board to say 125A (eg 4Way Type B with 2 x 63A TP MCB's)


    That's still probably cheaper than a 400A rated MCCB panel with a lot of 63A outgoing ways - depends a bit on the capability of the "house" sparks though to assemble it properly


    Regards


    OMS
Children
No Data

Community Rules & Guidelines