| The main requirements include the following...
All underfloor heating systems must be suitably earth shielded and must be RCD protected and powered via a fused spur. Some Class II certified systems do not require earthing grids if used in dry rooms. Carbon films are not usually Class II devices and therefore, in our opinion, these require earthing grids. Whatever interpretation one takes of the 17th Edition it undoubtedly increases their safety by incorporating earth protection above them.All systems must be a minimum IPX7 rated if they are being laid within tile adhesive or under screed.The system must have a capability to limit the surface temperature of the floor covering.There is now a requirement to limit the maximum temperature in the zone where heating units are installed to 80ºC.The installer of an underfloor heating system is now required to ensure that a full description of the heating system, wiring diagrams and usage instructions are left at the appropriate distribution unit for future reference.All Heat Mat heating cables and mats are designed to be 17th Edition compliant and their instruction manuals provide the information required to help the installer fulfill their installation obligations under these rules.For complete details please see the full 17th Edition with particular reference to section 753, or discuss your particular installation requirements witha suitably qualified electrician. Return to previous page Return to previous page.... |
