{"id":80493,"date":"2024-10-17T18:44:52","date_gmt":"2024-10-17T18:44:52","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ieee-c37-81-1990\/"},"modified":"2024-10-24T19:43:43","modified_gmt":"2024-10-24T19:43:43","slug":"ieee-c37-81-1990","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ieee\/ieee-c37-81-1990\/","title":{"rendered":"IEEE C37.81 1990"},"content":{"rendered":"

New IEEE Standard – Active. This IEEE Standards product is part of the C37 family on Switchgear, Substations and Protective Relays. This standard provides specific requirements and guidance for seismic qualification of metal-enclosed power switchgear assemblies. This guide may also be used in other applications in which seismic response of metal-enclosed power switchgear assemblies is a consideration.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nTitle Page <\/td>\n<\/tr>\n
3<\/td>\nIntroduction
Participants <\/td>\n<\/tr>\n
6<\/td>\nCONTENTS <\/td>\n<\/tr>\n
9<\/td>\n1. Scope and References
1.1 Scope <\/td>\n<\/tr>\n
10<\/td>\n1.2 References
2. Definitions <\/td>\n<\/tr>\n
12<\/td>\n3. Seismic Criteria
3.1 Generic Response Spectrum <\/td>\n<\/tr>\n
14<\/td>\n3.2 Information Furnished by the User
4. Performance Requirements
4.1 General
4.2 Functional Performance Criteria <\/td>\n<\/tr>\n
15<\/td>\n4.3 Electrical Performance Criteria
4.4 Structural Performance Criteria
4.5 Demonstration of Adequacy <\/td>\n<\/tr>\n
16<\/td>\n5. Qualification Methods
5.1 Analysis
5.2 Testing
5.3 Combined Test and Analysis
5.4 Experience
6. Testing and Results
6.1 Introduction <\/td>\n<\/tr>\n
17<\/td>\n6.2 Selection and Test Setup
6.3 Resonance Search Procedure
6.4 Seismic Test Input <\/td>\n<\/tr>\n
18<\/td>\n6.5 Number and Duration of Tests
6.6 Tests and Measurements Before Seismic Tests
6.7 Tests and Measurements During Seismic Tests <\/td>\n<\/tr>\n
19<\/td>\n6.8 Tests and Measurements After Seismic Tests <\/td>\n<\/tr>\n
20<\/td>\n6.9 Refurbishment Maintenance and Repairs During Testing
7. Combined Analysis and Testing
7.1 Introduction <\/td>\n<\/tr>\n
21<\/td>\n7.2 Analysis
7.3 Test Procedure <\/td>\n<\/tr>\n
22<\/td>\n7.4 Qualifying the Complete Assembly
8. Extrapolation for Similar Equipment <\/td>\n<\/tr>\n
23<\/td>\n9. Documentation
9.1 General
9.2 Test Qualification Report
9.3 Combined Analysis and Test Qualification Report <\/td>\n<\/tr>\n
24<\/td>\n9.4 Documentation for Qualification by Extrapolation <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

IEEE Guide for Seismic Qualification of Class 1E Metal-Enclosed Power Switchgear Assemblies<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
IEEE<\/b><\/a><\/td>\n1990<\/td>\n24<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":80494,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2644],"product_tag":[],"class_list":{"0":"post-80493","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-ieee","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/80493","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/80494"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=80493"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=80493"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=80493"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}