AS 5715 pdf download – Uninterruptible power systems (UPS) for roadside devices 1.3.9 Maintenance bypass (path) Alternative power path provided to maintain continuity of load power during maintenanceactivities. 1.3.10 Maintenance bypass switch Switch designed to isolate a UPS, or part thereof,from the load and to maintain continuityof load power via an alternative path during maintenance activities. 1.3.11 Primary power Power...