Regulation 523.7, BS5803-5: Appendix C: Avoidance of overheating of electric cables,īuilding Regulations, Approved Document B and Thermal Insulation: avoiding risks, BR 262, BRE, 2001 refer.ĭISCLAIMER: This information has been supplied in good faith and the upmost care has been taken to ensure the data is accurate in it's derivation from BS7671. Wherever practicable, a cable is to be fixed in a position such that it will not be covered with thermal insulation. 103# For full installation method refer to Table 4A2 Installation Method 103.102# For full installation method refer to Table 4A2 Installation Method 102.101# For full installation method refer to Table 4A2 Installation Method 101.100# For full installation method refer to Table 4A2 Installation Method 100.C* For full installation method refer to Table 4A2 Installation Method 20 but for flat twin and earth cable.
A* For full installation method refer to Table 4A2 Installation Method 2 but for flat twin and earth cable.Reference Method A* (enclosed in conduit in an insulated wall) Reference Method 103# (in a stud wall with thermal insulation with cable not touching the inner wall surface) Reference Method 102# (in a stud wall with thermal insulation with cable touching the inner wall surface) Reference Method 101# (above a plasterboard ceiling covered by thermal insulation exceeding 100mm in thickness) Reference Method 100# (above a plasterboard ceiling covered by thermal insulation not exceeding 100mm in thickness) 70☌ Thermoplastic Insulated and Sheathed Flat Cable with Protective Conductor (COPPER CONDUCTORS) Tables Apply to: 6241Y, H6242Y, H6243Y CURRENT-CARRYING CAPACITY (amperes) and VOLTAGE DROP (per ampere per metre)
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