joining cores of multicore cable for beter ampacity

Reply

  #1  
Old 11-15-05, 11:52 PM
ppp
Visiting Guest
Posts: n/a
Post joining cores of multicore cable for beter ampacity

I want to use multicore cabel for domestic instalation ,but i dont have 2,5 mm cable. But I have only 4 core by 1.5 mm. Can I join the cores 2 by 2 to reach a beter ampacity? And what MCB for this combination? The cable marker is - H05 V V - F

Thanks a lot!
 
Sponsored Links
  #2  
Old 11-16-05, 02:10 AM
ppp
Visiting Guest
Posts: n/a
Question

I'm asking because I dont have experience in that kind of work. I juist
want to know if it is possible to use it and how much load it is
carryng. And whot ampacity of MCB to use for this.
I juist want to ack someone with better experience than me.


"" I want to use multicore cabel for domestic instalation ,but i dont
have 2,5 mm cable.
But I have only 4 core by 1.5 mm. Can I join the cores 2 by 2 to reach
a beter ampacity?
And what MCB for this combination? The cable marker is - H05 V V - F ""


Thank you!
 
  #3  
Old 11-16-05, 03:27 AM
ppp
Visiting Guest
Posts: n/a
current carryng capacity of 1.5 mm multicore

I have no choise and have to use multicore cable in my home instalation. I have 4 core cable by 1.5 multicore cores. How to protect this cable by MCB - what kind to use ? I dont know the ampacity of this cable - H05 V V - F ?
And how to kombine cores - 2 by 2 -(2-N and 2-L)? Or to divade the the load between them? Please help me ? Thanks A Lot!
 
  #4  
Old 11-16-05, 05:45 AM
Member
Join Date: Jan 2004
Location: Oregon
Posts: 1,219
Remember that the internet is international, but electrical codes are local!

Under US code you could not combine small conductors like this to get better ampacity. You are not permitted to parallel conductors until they are size 1/0 AWG (53.5mm^2). You've not specified your location, and we don't know what rules you follow.

There are very good physics reasons not to parallel conductors in this fashion. Slight imbalance in the conductors could cause one to carry far more current than the other, leading to failure of the overloaded conductor. This is less of a problem with larger conductors because they are more easily matched.

-Jon
 
  #5  
Old 11-17-05, 07:08 AM
Member
Join Date: Apr 2004
Location: Ontario Canada
Posts: 1,767
You need to get 2.5mm2 wire. If the trouble is you cannot buy it, hire an electrician.
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes
'