IEEE 383-2015 pdf free download – IEEE Standard for Qualifying Electric Cables and Splices for Nuclear Facilities.
4. Principle qualification criteria
It is required that Class IE cable and field splices meet or exceed specified performance requirements throughout their installed life. This is accomplished, in part, by ensuring that cables are manufactured in accordance with applicable industry standards (as defined in Clause 7) and that cables and field splices are subjected to quality assurance programs that include, but are not limited to, design, qualification, and production quality control. It is the role of qualification to ensure that Class IE cable and field splices can be demonstrated to perform as specified and that no failure mechanism exists that could lead to common-cause failures under postulated service conditions.
It is the Degradation with time (aging), followed by exposure to the environmental extremes of temperature, pressure, humidity, radiation, mechanical stress, or chemical spray or a combination of these resulting from design-basis events (DBEs, which) present a potential for common-cause failures of Class IE cable and field splices. For these reasons, it is necessary to establish a qualified life for cables and field splices required to function during and following DBEs, which subject the cables and field splices to DBE environments that exceed their normal and abnormal levels. This shall be accomplished using the qualification methods described in the following clauses sections of this standard, including type testing, operating experience, analysis as a supplement to type testing and operating experience, ongoing qualification, or any combination thereof.
For whichever qualification method is chosen, upon conclusion of the qualification program, documentation is required that demonstrates cable and field splice adequacy to perform Class IE functions. The documentation shall be in an auditable form that allows verification by competent personnel, other than the qualifier, and shall contain the following:
— The cable or field splice’s specification or qualification plan
— The documents that demonstrate compliance with the qualification plan
— Inspection and maintenance requirements
— Summaries and conclusions
For all qualification programs, the end result shall be the collection of documentation that demonstrates the equipment’s adequacy to perform its safety functions with no failure mechanisms that could lead to common-cause failures. The documentation shall allow verification by competent personnel that the equipment has been properly qualified.
5. Principles of qualification
5.1 General
An objective of qualification is to establish a qualified life for cables and field splices that are installed in environmentally harsh areas and must perform a safety function during and following a the DBE. The qualified life of the cables and field splices can be expressed in years at a specified operating temperature. Qualification of Class IE cables shall be accomplished using either a specific or generic qualification process.IEEE 383 pdf download.