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 4 replies
  • Subscribers 32 subscribers
  • Views 575 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

2 Substations each feeding a switch panel within the same room.....

tonydon
Hi


I currently work at a site that has a 400A 3ph supply from one substation (on site)

I need to install another 200A 3ph supply from a different substation (also on site)


The original substation supplies a miniform panel in a switch room


Is there a problem installing a second separate miniform panel  from the second sub into the same switch room?


Parents
  • 0
    No provided you to comply with simultaneously accessible exposed conductive parts being connected to the same earthing system (411.3.1.1).To achieve this you may need to get the suppliers consent to bond the eathing systems together. The bond would need to comply with 542.1.3.3. If you have 2 different eathing systems on the supply the supplier may not permit this so best ask before you start spending the clients cash.


    You will also then have 2 sources of supply in to the same installation to comply with 514.15.1. you going to need some additional labeling.
Reply
  • 0
    No provided you to comply with simultaneously accessible exposed conductive parts being connected to the same earthing system (411.3.1.1).To achieve this you may need to get the suppliers consent to bond the eathing systems together. The bond would need to comply with 542.1.3.3. If you have 2 different eathing systems on the supply the supplier may not permit this so best ask before you start spending the clients cash.


    You will also then have 2 sources of supply in to the same installation to comply with 514.15.1. you going to need some additional labeling.
Children
No Data

Community Rules & Guidelines