Rationale

Although DLO cable sizes are typically constructed of Class I strand, ASTM B172 does not include DLO-sized conductors (ranging from 262 to 1111 kcmil). DLO sizes will be added to Tables 1-3 so that DLO cables can meet DCR requirements for Class I stranding per Section 10. Address DCR discrepancy between UL 44 and ASTM B172 for 400 kcmil size.