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 20 replies
  • Subscribers 31 subscribers
  • Views 2260 views
  • Users 0 members are here
Options
You may also be interested in
This discussion is locked.
You cannot post a reply to this discussion. If you have a question start a new discussion

adiabatic equation - 2.5 2c SWA

Stewart Mason
I don't get involved with adiabatic equations all to often, hence I'm a bit rusty! I'm trying to calculate the R1+R2 for a 2 core 2.5mm SWA. Obviously the R1 is the easy bit, I'm struggling with the SWA as the R2.  I saw a link to a table on the old forum but I can't find it now. Any ideas?


Thanks Stewart
Parents
  • 0
    We are about 120 m away from the sub.


    The point I'm trying to make, is that without info from any of these posts on the fault level, the IET guidance for 100 A supplies is to assume 16 kA - and in fact where practicable the design is done for such installations in line with the 16 kA (and 0.35 external loop impedance) for dwellings to cover the fact that conditions may change. This is the bases of Section 7 of the OSG.
Reply
  • 0
    We are about 120 m away from the sub.


    The point I'm trying to make, is that without info from any of these posts on the fault level, the IET guidance for 100 A supplies is to assume 16 kA - and in fact where practicable the design is done for such installations in line with the 16 kA (and 0.35 external loop impedance) for dwellings to cover the fact that conditions may change. This is the bases of Section 7 of the OSG.
Children
No Data

Join us to get the best from IET EngX.

Joining EngX lets you personalise your experience so you stay up to date on the topics that interest you, plus you’ll be able to make connections who are looking to collaborate, exchange ideas and more.

Join us Not now

Community Rules & Guidelines