... maximum.2, Construction Concentric strand or compressed 1350-H19 conductor, polyethylene insulation, concentric strand AAC,ACSR, or 6201alloy ... maximum for cross-linked insulation.2, construction Concentric strand or compressed 1350-H19 conductor, polyethylene or cross- ... linked polyethylene insulation, concentric strand AAC, ACSR or 6210 alloy neutral messenger.3, ...