bs7671

Table 54.7 in BS7671 says that when the protective conductor is the same material as the line conductor (S), it must at least be the same size as the line conductor. Why does 1.5mm² T&E not comply with this reg when you have 1.5mm² line conductors and 1mm² protective/CPC conductor!? Can some...

With the 18th edition (don't have a copy yet), what applications can you still use conventional plastic cable clips? Do you have to use metallic cable clips holding cables on to joists in the void between ceilings and the floor above, and how about attic spaces? Regards: Elliott.

Hi all, does anyone know if the online/digital version of the latest edition of BS7671 has been published yet? I am sure previous editions of BS7671 you could get in digital form, but can't find the digital version of the 18th edition on IET's website. Anyone know anything about this...

Under Regulation 411.3.1.1 (Page 55 of the 17th edition of BS7671 Amendment 3), as quoted; It is clear that that a CPC must be included in all fixed wiring except for Class 2 lamp holders, even if it is a Class 2 device at the other end. Yet people still use the "earth" core in flex as a live...

Was reading an article on IET about whether it is permissible to exceeded the voltage drop limits in certain situations. Thus to further expanded the original question on IET; would it ever be acceptable if one exceeded the 5% voltage drop for power circuits / 3% voltage drop for lighting...