This standard BS IEC TR 62157:2001 Cylindrical machined carbon electrodes. Nominal dimensions is classified in these ICS categories:
25.180.10 Electric furnaces
29.100.20 Electric and electromechanical components
Applies to cylindrical carbon electrodes, manufactured from upgraded coal, for use in electric direct-arc and submerged-arc furnaces, for melting silicium and carbide and for other purposes. Covers a) dimensions and tolerances on the length and diameter of carbon electrodes b) dimensions and thread details for carbon electrode heads and sockets.
