I understand that the Calcard will give me some form of reference for calibrating my 40 year old meters - albeit not close to a standard and verified by those used by practicing licenced electricians. I will read later the PDF link above.
Thank you for your time and understanding.
Thank you everyone who has provided advice so far. I haven't kept up with all the changes in regs but it will be the testing requirements that will evade me for now. I'm not sure if my old insulation tester and earth loop impedance tester is suitable.
I haven't worked as an electrician for 30 years but have B and C certificates in Electrical Installaton. I want to replace my daughter's consumer unit. What requirements are placed on me.
I just joined after coming across push in connectors in a LED fitting. I wanted to know of their reliability - then came across Wago224. How the world has changed in 40 years.