IEC 60228 specifies the requirements for conductors in insulated power cables, ranging from Class 1 : Solid conductors for fixed installations. Class 2 : Stranded conductors for fixed installations.
"Monday is too late," Elias snapped, though the anger wasn't directed at her. The safety audit was tomorrow morning. If he couldn't prove the cables were non-compliant with the IEC standards, the project would sign off on them. If they signed off, and the system went live, the overheating could cause a catastrophic failure inside the transit tunnels. iec 60228 pdf free download