scope:

This standard sets forth the minimum requirements for installation, inspection and testing of Class IE power, instrumentation and control equipment and systems during the construction phase of a nuclear power generating station. These requirements also cover modifications and those activities occurring during the operating phase that are comparable in nature and extent to related activities occurring during the initial construction of the station.

All references to construction activities in this standard shall refer to this scope which includes operational modifications. 

The requirements of this standard are applicable to systems or equipment that are defined by design documents as Class IE.

This standard does not set forth specific requirements for the following, though they are related to the above equipment and systems.

(1) Installation, inspection, and testing of welds

(2) Cleaning and flushing of instrument sensing lines

(3) Aligning or verifying alignment, or both, of rotating equipment

(4) Verifying structural integrity of supports for Class IE equipment

(5) Activity governed by Section III of ASME Boiler and Pressure Vessel Code

(6) Preoperational tests of the integrated systems and equipment

(7) Periodic testing and maintenance after initial operation

The quality assurance program requirements for installation, inspection, and testing activities are delineated in ANSI N45.2-l977. For the operational phase refer to ANSI N18.7-l976.