The IET is carrying out some important updates between 17-30 April and all of our websites will be view only. For more information, read this Announcement

This discussion is locked.
You cannot post a reply to this discussion. If you have a question start a new discussion

Cable Standards and Selection

Hi 

Would be grateful for some guidance on cabling standards/selection

Currently developing an large energy storage system and equipment is coming from all over the place.

I seem to be struggling to get European suppliers of equipment to comply with British standard cabling such as shown in Table 4A3. I keep on getting thrown all sorts of weird and wonderful cable datasheets, all with IEC standards but no ref to BS or BS EN that I am comfortable or familiar with. We have clearly specified BS7671 as the standard to be followed but there seems to be a reluctance to adhere to this.

Example

Power cables 2XY-fl RM 2x2,5mm² (bk)

Instrument cables   RE-2X(St)Yv-fl 1x2x1.0mm² (bk/bu)

Would other non BS cables be accepted in the UK and signed off and what are the implications in not following cable recommendations in table 4A3? 

kind regards

Chris

Parents
  • interconnecting cabling on a skid mounted vacuum pump system.

    Are we sure this is actually within scope of BS 7671 - rather than perhaps BS EN 60204?

      - Andy.

Reply
  • interconnecting cabling on a skid mounted vacuum pump system.

    Are we sure this is actually within scope of BS 7671 - rather than perhaps BS EN 60204?

      - Andy.

Children
  • Very good point Andy , Ill need to do some refreshing on BS EN 60204 tbh.

  • Hi Andy,

    After a bit of searching through my ancient version of BS EN 60204-1 , section 13.7.1 seems to suggest in short that the cables need to be fit for purpose. (btw I am very aware this version is massively out of date)

    There is a random note in the section that states cables in such heavy duties refer to relevant national standard. Which is a little cryptic to me.

    Have you any thoughts on the overlapping of BS7671 / BS EN 60204-1 . I'm thinking if we can brand the skid as part of a `generator machine` we can relax BS7671 and the pain goes away.

    Kind regards

    Chris