IEEE C37.20.3-2001 pdf download IEEE Standard for Metal-Enclosed Interrupter Switchgear
3.5.2 design tests: Tests made by the manufacturer to determine the adequacy of the design of a particulartype, style, or model of equipent or its component parts to meet its assigned ratings and to operate satisfac-torily under noral service conditions or under special conditions if specified. Such tests may be used todemonstrate compliance with applicable standards of the industry.f
NOTES–Design tests are made on representative apparatus or prototypes to verify the validity of design analysis and calculation methods and to substantiate the ratings assigned to all other apparatus of basically the same design. These tests arenot intended to be made on every design variation or to be used as part of normal production. The applicable portion olthese design tests may also be used to evaluate modifications of a previous design and to ensure that performance has notbeen adversely affected. These data from previous similar designs may also be used for current designs, where appropriate. Once made, the tests need not be repeated unless the design is changed to modify performance.2-Design tests are sometimes called type tests.
3.5.3 production tests: Tests made for quality control by the manufacturer on every device or representativcsamples, or on required parts or materials, to verify during production that the product mects the designspecifications and applicable standards.f
NOTES
1–Certain quality assurance tests on identified critical parts of repetitive high-production devices may be tested on aplanned statistical sampling basis.
2-Production tests are sometimes called routine tests.
3.5.4 conformance tests: Tests made to demonstrate compliance with the applicable standards. The testspecimen is normally subjected to all planned production tests prior to initiation of the conformance testprogram.f
NOTE-The conformance tests may, or may not, be similar to certain design tests. Demonstration of margin (capabilities) beyond the standards is not required .
3.5.5 field tests (for switchgear): Tests made after the assembly has been installed at its place of utilization.t
3.5.6 switch compartment: The portion of the switchgear assembly that contains one switching device(such as an interrupter switch or power fuse interrupter switch combination) and the associated primaryconductors.*
3.5.7 vertical section: The portion of the switchgear assembly between two successive vertical delineationsThe vertical section may contain one or more switch compartments and associated primary conductors.”
4. Service conditions
Standards for the design and performance of MEl switcheear are based on usua service conditions asdescribed in this clause. The selection of equipment for a particular application may be based on the con·struction and ratings as defined in this standard provided that the following usual service conditions exist:
IEEE C37.20.3-2001 pdf download
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