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

  • Replies 5 replies
  • Subscribers 41 subscribers
  • Views 90 views
  • Users 0 members are here
Options
You may also be interested in

Singles and Data in the same Dado trunking compartment

Stuart Urban

What are peoples thoughts on mixing 230V 6491B singles and standard structured wiring data cables in the same compartment of Dado trunking. Although the case I am involved with are supposedly only running next to each other for a short distance it clearly doesn't comply with 528.1 Proximity to electrical services. I have a contractor that isn't concerned by this, however even if the client agrees with a departure from BS7671 I'm still concerned from a health and safety perspective as many of the instances of this are in a medical location.

Parents

  • What is the concern here? BS 7671 and BS 6701 (thank you, Graham) appear to be concerned with the risk of LV cables raising the voltage in the Band 1 cables. If I have understood that correctly, can the minimum 50 mm separation be achieved in the dado trunking? Could one (or both) of the sets of cables be enclosed in some sort of flexible trunking, mini-trunking, etc?

    Surely, part of the concept of dado trunking is that different types of cable go in different compartments, but perhaps one or more of the circuits are new to existing trunking?

    If the risk is interference with data, then I doubt that a couple of mm of PVC (or other polymer) will make a lot of difference, but I am no electronic engineer.

Reply

  • What is the concern here? BS 7671 and BS 6701 (thank you, Graham) appear to be concerned with the risk of LV cables raising the voltage in the Band 1 cables. If I have understood that correctly, can the minimum 50 mm separation be achieved in the dado trunking? Could one (or both) of the sets of cables be enclosed in some sort of flexible trunking, mini-trunking, etc?

    Surely, part of the concept of dado trunking is that different types of cable go in different compartments, but perhaps one or more of the circuits are new to existing trunking?

    If the risk is interference with data, then I doubt that a couple of mm of PVC (or other polymer) will make a lot of difference, but I am no electronic engineer.

Children
No Data

Community Rules & Guidelines