IEEE 422:1986 pdf download.IEEE Guide for the Design and Installation of Cable Systems in Power Generating Stations.
This document has been developed as a guide for the design and installation of wire and cable systems in generating stations with the objective of minimizing failures and their consequences. It is not intended for use in the design of wire and cable systems in switchyards or substations, which is covered in IEEE Std 525-1978 [17].
This guide applies to both nuclear and nonnuclear electric power generating stations except for the special requirements of wire and cable installations in Class 1E systems of nuclear stations for which the user should refer to
ANSI/IEEE Std 690-1984 [5].
1.2 References
[1] AEIC CSS-82, Specification for Thermoplastic and Croeslinked Polyethylene Insulated Shielded Power Cables Rated 5 Through 46 kV.
[2] AEJC CS6-82, Specification for Ethylene Propylene Rubber Insulated Shielded Power Cables Rated 5 Through 69 kV.
[3] ANSI/IEEE Std 383-1974, IEEE Standard for Type Test of Class 1E Electric Cables, Field Splices, and Connections for Nuclear Power Generation Stations.
[4] ANSI/IEEE Std 400-1980, IEEE Guide for Making High-Direct-Voltage Tests on Power Cable Systems in the Field.
[5] ANSI/IEEE Std 690-1984, IEEE Standard for the Design and Installation of Cable Systems for Class 1E Circuits in Nuclear Power Generating Stations.
[6] ANSI/NFPA 70-1984, National Electrical Code (NEC).
[7] ANSI/NFPA 72D-1979, Installation, Maintenance and Use of Proprietary Protective Signaling Systems.
[8] ANSI / NFPA 72E-1984, Automatic Fire Detectors.
[9] ASTM E119-83, Standard Methods of Fire Tests of Building Construction and Materials.
[10] ICEA P-32-382, Short Circuit Characteristics of Insulated Cable.
[11] ICEA P-54-440/NEMA WC51, Ampacities in Open Top Cable Trays.
2. Cable Performance
This section provides guidance for cable performance and should be considered in specifying cable for installation in generating stations. No one cable characteristic should be emphasized to the serious detriment of others. A balance of cable characteristics as well as good installation, design, and construction practices are necessary to provide a sound cable system.
2.1 Definitions
design life of a power generating station. The time during which satisfactory station performance can be expected for a specific set of operating conditions.
service life of cable. The time during which satisfactory cable performance can be expected for a specific set of service conditions.
22 Service Conditions
(1) Cables may be directly buried, installed in duct banks and trenches below grade, or installed in cable trays, conduits, and wireways above ground. Cable should be suitable for operation in wet and dry locations.
(2) Special consideration should be given to cable installed in areas where ambient temperatures exceed these values.
(3) Cables should be suitable for all environmental conditions that occur in the areas where they are installed.IEEE 422 pdf download.