ISA 67.02.01

This Standard covers design, protection, and installation ofnuclear safety-related instrument-sensing lines and sampling linesfor nuclear power plants. The Standard covers the pressure boundaryrequirements for sensing lines up to and including one inch (25.4mm) outside diameter or three-quarter inch nominal pipe 1.050 inch(26.67 mm) outside diameter. The boundaries of this Standard forinstrument-sensing lines span from the root valve/piping classchange up to but not including the manufacturer-supplied instrumentconnection. The boundaries of this Standard for sampling lines spanfrom the process tap to the upstream side of the sample panel,bulkhead fitting, or analyzer shutoff valve, and include in-linesample probes.

Purpose

This Standard establishes the applicable code requirements andcode boundaries for the design and installation ofinstrument-sensing lines interconnecting nuclear safety-relatedpower plant processes with both nuclear safety-related andnonnuclear safety-related instrumentation. This Standard alsoestablishes the applicable requirements and limits for the designand installation of sample lines interconnecting nuclearsafety-related power plant processes with sampling instrumentation.This Standard addresses the pressure boundary integrity of aninstrument-sensing line and sampling line in accordance with theappropriate parts of Section III, Boiler and Pressure Vessel Code,American Society of Mechanical Engineers (ASME) or ASME B31.1, asapplicable, and the assurance that the safety function of thenuclear safety-related instruments and process sampling isavailable.

Edition:

14

Published:

04/04/2014

ANSI:

ANSI Approved

Number of Pages:

46

File Size:

1 file , 560 KB