IEEE Std C37.30.3:2018 pdf download.IEEE Standard Requirements for High-Voltage Interrupter Switches, Interrupters, or Interrupting Aids Used on or Attached to Switches Rated for Alternating Currents Above 1000 V.
This document provides standard requirements for interrupter switches, interrupters, or interrupting aids used on or attached to switches rated for high-voltage ac above 1000 V and used indoors, outdoors, or in enclosures for non-fault current interrupting for which an interrupting duty is assigned. This standard covers preferred ratings, construction, application, loading, installation, operation, and maintenance guidelines. This standard does not apply to load-break separable insulated connectors, circuit breakers, circuit switchers, metal-enclosed switchgear, pad-mounted switchgear. reclosers, sectionalizers or other switching devices that are covered by other IEEE standards.
1.2 Purpose
The purpose of this standard is to provide a basic standard requirement for interrupter switches. interrupters, or interrupting aids used on or attached to switches rated for high-voltage ac above 1000 V.
2. Normative references
The following referenced documents are indispensable for the application of this document (i.e., they shall be understood and used, so each referenced document is cited in text and its relationship to this document is explained). For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments or corrigenda) applies.
IEEE Std C37.30.4, IEEE Standard Test Code for Switching and Fault Making Tests for High-Voltage
Interrupter Switches, interrupters or Interrupting Aids Used on or Attached to Switches Rated for Alternating
Currents Above 1000 Volts.
IEEE Std C37. 100.1 TM2007 IEEE Standard of Common Requirements for high Voltage Power Switchgear Rated Above 1000 V.
IEEE Sid C37.I00.2, IEEE Standard for Common Requirements for Testing of AC Capacitive Current Switching Devices over 1000 V.
3. Definitions
For the purposes of this document, the following terms and definitions apply. The IEEE Standards Dictionary Online should be consulted for terms not defined in this clause.
allowable continuous current class (1CCC) designation (of an air switch): A code that identifies the composite curve relating the loadability factor (LF) of the switch to the ambient temperature O as determined by the limiting switch part class designations.
distribution class: A descriptive term used to denote application, restriction, or both to that part of an electric system between the substation and the customer.
enclosed switch: Switches designated for operation within a housing restricting heat transfer to the external
medium.
horn-gap switch: A switch provided with arcing horns.
indoor switch: Switches designated for operation inside buildings or weather-resistant enclosures which do not restrict heat transfer to the ambient.IEEE Std C37.30.3 pdf download.