IEEE Std 383 pdf free download

IEEE Std 383 pdf free download.Qualifying Electric Cables and Splices for Nuclear Facilities.
4. Principle qualification criteria
It is required that Class I E cable and 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 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 I E cable and 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.
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) present a potential for common-cause failures of Class I E cable and splices. For these reasons, it is necessary to establish a qualified life for cables and splices required to function during and following DE3Es, which subject the cables and splices to DBE environments that exceed their normal and abnormal levels. This shall be accomplished using the qualification methods described in the following clauses 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 splice adequacy to perform Class 1 E 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 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 splices that are installed in environmentally harsh areas and must perform a safety function during and following a Dliii. The qualified life of the cables and splices can be expressed in years at a specified operating temperature. Qualification of Class 1 E cables shall be accomplished using either a specific or generic qualification process.
A qualified life is not required for cables and splices located in a mild environment, if the cables and splices are operated within the limits established by applicable specifications and standards. Failures associated with unanticipated conditions should be evaluated to determine if the root cause requires corrective actions to prevent the occurrence of common-cause failures.
a) Specific Qualification. In specific qualification, the qualification criteria are established for a set of requirements designed to envelop a single application. The qualification program shall demonstrate operability of a cable and splice under all applicable service conditions, including time. For specific qualification, the specified electrical parameters may be used in lieu of the cable or splice’s rated parameters.
b) Generic Qualification. In generic qualification, the qualification specification criteria are established for a generic set of requirements designed to envelop a number of applications. To establish qualification for a specific application, the specific application requirements shall be equal to or less severe than the generic qualification requirements.
The specific or generic qualification of Class I E cables and splices and its application interfaces shall be accomplished by using one or more of the methods described in the following subclauses.IEEE Std 383 pdf download.