Prysmian 6242Y Grey 2.5mm² Twin & Earth Cable 10m Coil (82572)

Thank you for contacting Prysmian Group UK Technical Support. We would generally advise against leaving PVC cables in contact with polystyrene insulation as this can cause the plasticiser within the sheath to leech out, leaving it more rigid and brittle and thus more likely to crack if moved. If it can be ensured that the cable is kept separate from the polystyrene, such as capping or some other means, then this reaction can be avoided. If, however, contact is unavoidable, then the LSOH variant of this cable (6242B) can be used instead as we believe there is no risk of such a reaction. Kind regards,

The size would depend on volt drop and length of run. Please note that for new circuits you would need to consult with a qualified electrician. For help with cable sizing, please visit https://uk.prysmiangroup.com/cableapp for more information or search ‘CableApp’ in the App Store or Google Play.

Thank you for contacting Prysmian Group UK Technical Support. 6242Y Twin & Earth is a common cable used for wall sockets, though we would also advise contacting an electrician to ensure that the size selected is appropriate for the expected load. Thank you Kind regards.

Thank you for contacting Prysmian Group UK Technical Support. Whilst 6242Y cable is suitable for use in lighting circuits, we would advise you to consult with a qualified electrician to determine the correct design for the system i.e. correct cable size, expected load, etc. Thank you Kind regards

Thank you for contacting Prysmian Group. 2.5mm² twin and earth can be used to feed a spur socket. Guidance is given in Appendix 15 of BS7671 as to the rules for such arrangements. If you are unsure of what you are doing or not familiar with the rules, you should consult an electrician.