General requirements from ICEA S-75-381, NEMA WC58, CSA and MSHA prescriptions. The family covers from 2 kV (multicore) and 5 kV-25 kV (single- and multicore). Construction: two ground wires and insulated ground check, class 1 tinned copper (flexible), 90 °C rated EPR, CPE sheath. Mainly used in North and South America.