Abstract
describes the recommended steps to complete a loop check which comprises the activities between the completion of loop construction (including installation and point-to-point checks) and the start-up of the cold commissioning. This document is applicable for the construction of new plants and for expansion/retrofits (i.e. revamping) of E&I installations in existing plants (including PLC, BAS, DCS, Panel-mounted and field instrumentation). It does not include a detailed checkout of power distribution systems except as they relate to the loops being checked (i. e. a motor starter or a power supply to a 4-wire transmitter).
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