{"id":211715,"date":"2024-10-19T13:41:53","date_gmt":"2024-10-19T13:41:53","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ieee-c37-20-9-2019\/"},"modified":"2024-10-25T06:30:32","modified_gmt":"2024-10-25T06:30:32","slug":"ieee-c37-20-9-2019","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ieee\/ieee-c37-20-9-2019\/","title":{"rendered":"IEEE C37.20.9 2019"},"content":{"rendered":"

New IEEE Standard – Active. This standard covers metal-enclosed switchgear assemblies incorporating gas insulating systems containing, but not limited to, such devices as interrupter switches; selector switches; fuses; circuit breakers; control, instrumentation and metering devices; and protective equipment. It includes, but is not specifically limited to, equipment for the control and protection of apparatus used for distribution of electrical power.<\/p>\n

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PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nIEEE Std C37.20.9\u2122-2019 Front cover <\/td>\n<\/tr>\n
2<\/td>\nTitle page <\/td>\n<\/tr>\n
4<\/td>\nImportant Notices and Disclaimers Concerning IEEE Standards Documents <\/td>\n<\/tr>\n
7<\/td>\nParticipants <\/td>\n<\/tr>\n
9<\/td>\nIntroduction <\/td>\n<\/tr>\n
12<\/td>\nContents <\/td>\n<\/tr>\n
15<\/td>\nIMPORTANT NOTICE
1.\u2002Scope
2.\u2002Normative references <\/td>\n<\/tr>\n
19<\/td>\n3.\u2002Definitions <\/td>\n<\/tr>\n
23<\/td>\n4.\u2002Normal (usual) and special (unusual) service conditions
4.1\u2002Normal (usual) service conditions <\/td>\n<\/tr>\n
24<\/td>\n4.2\u2002Special (unusual) service conditions for both indoor and outdoor switchgear <\/td>\n<\/tr>\n
25<\/td>\n5.\u2002Ratings
5.1\u2002General <\/td>\n<\/tr>\n
26<\/td>\n5.2\u2002Rated maximum voltage (V) or (Ur)
5.3\u2002Rated insulation level (Ud, Up) <\/td>\n<\/tr>\n
27<\/td>\n5.4\u2002Rated power frequency (fr)
5.5\u2002Rated continuous (normal) current and temperature rise <\/td>\n<\/tr>\n
30<\/td>\n5.6\u2002Rated short-time withstand current (Ik)
5.7\u2002Rated peak withstand current (Ip) <\/td>\n<\/tr>\n
31<\/td>\n5.8\u2002Rated duration of short-time withstand current (tk)
5.9\u2002Rated supply voltage of closing and opening devices and of auxiliary and control circuits (Ua)
5.10\u2002Rated supply frequency of closing and opening devices and of auxiliary circuits
5.11\u2002Rated pressure of compressed gas for insulation and\/or operation
5.12\u2002Current transformer ratings <\/td>\n<\/tr>\n
33<\/td>\n6.\u2002Design and construction
6.1\u2002Buses, primary connections, and other components <\/td>\n<\/tr>\n
35<\/td>\n6.2\u2002Grounding <\/td>\n<\/tr>\n
36<\/td>\n6.3\u2002Control and secondary circuits and devices <\/td>\n<\/tr>\n
40<\/td>\n6.4\u2002Miscellaneous <\/td>\n<\/tr>\n
41<\/td>\n6.5\u2002Materials and finish <\/td>\n<\/tr>\n
42<\/td>\n6.6\u2002Precautionary labels <\/td>\n<\/tr>\n
43<\/td>\n6.7\u2002Barriers
6.8\u2002Interlocks <\/td>\n<\/tr>\n
44<\/td>\n6.9\u2002Enclosure categories
6.10\u2002Circuit breaker or switch\u2014open\/close position indication
6.11\u2002Degrees of protection provided by enclosures
6.12\u2002Requirements for gases in switchgear <\/td>\n<\/tr>\n
45<\/td>\n6.13\u2002Requirements for gas tightness <\/td>\n<\/tr>\n
46<\/td>\n6.14\u2002Requirements for gas compartments
6.15\u2002Remote test cabinet
6.16\u2002X-ray emission <\/td>\n<\/tr>\n
47<\/td>\n7.\u2002Design (type) tests
7.1\u2002General <\/td>\n<\/tr>\n
49<\/td>\n7.2\u2002Dielectric tests <\/td>\n<\/tr>\n
55<\/td>\n7.3\u2002Radio influence voltage (RIV) test
7.4\u2002Measurement of resistance of circuits <\/td>\n<\/tr>\n
56<\/td>\n7.5\u2002Continuous current (temperature-rise) tests <\/td>\n<\/tr>\n
59<\/td>\n7.6\u2002Short-time withstand current and peak withstand current tests <\/td>\n<\/tr>\n
61<\/td>\n7.7\u2002Enclosure categories and related requirements
7.8\u2002Tightness tests <\/td>\n<\/tr>\n
62<\/td>\n7.9\u2002Electromagnetic compatibility tests
7.10\u2002Additional tests on auxiliary and control circuit
7.11\u2002X-Radiation procedure for vacuum interrupters <\/td>\n<\/tr>\n
63<\/td>\n7.12\u2002Mechanical tests <\/td>\n<\/tr>\n
64<\/td>\n7.13\u2002Insulating, isolating, and sealing materials <\/td>\n<\/tr>\n
68<\/td>\n7.14\u2002Coatings qualification test <\/td>\n<\/tr>\n
69<\/td>\n7.15\u2002Weatherproofing test for outdoor MEGIS
8.\u2002Production (routine) tests
8.1\u2002General
8.2\u2002Dielectric test on the main circuit <\/td>\n<\/tr>\n
70<\/td>\n8.3\u2002Inspection and dielectric test on auxiliary and control circuits
8.4\u2002Measurement of the resistance of the main circuit <\/td>\n<\/tr>\n
71<\/td>\n8.5\u2002Tightness test
8.6\u2002Design and visual checks
8.7\u2002Mechanical operation tests
8.8\u2002Camera tests
9.\u2002Field dielectric tests <\/td>\n<\/tr>\n
72<\/td>\n10.\u2002Application guide for MEGIS
10.1\u2002Special (unusual) service conditions <\/td>\n<\/tr>\n
76<\/td>\n10.2\u2002System characteristics\u2014voltage and frequency
10.3\u2002Overvoltage considerations\u2014insulation levels
10.4\u2002Continuous current rating and overload capability <\/td>\n<\/tr>\n
77<\/td>\n10.5\u2002Short-circuit considerations
10.6\u2002Nuclear power plant application
10.7\u2002Exposed circuits
10.8\u2002Surge arresters in switchgear assemblies
10.9\u2002Protection and isolation of switchgear connected to other switching equipment <\/td>\n<\/tr>\n
78<\/td>\n10.10\u2002Current transformer accuracies
10.11\u2002Replacement materials and parts
11.\u2002Guide for handling, storage, and installation (informative)
11.1\u2002Handling <\/td>\n<\/tr>\n
80<\/td>\n11.2\u2002Preoperation check <\/td>\n<\/tr>\n
81<\/td>\n11.3\u2002Mechanical tests\u2014leakage
11.4\u2002Mechanical tests\u2014gas quality (moisture, purity, and density) <\/td>\n<\/tr>\n
82<\/td>\n11.5\u2002Energization <\/td>\n<\/tr>\n
83<\/td>\nAnnex\u00a0A (normative) Guide for enclosure categories and related requirements
A.1\u2002Scope
A.2\u2002Enclosure categories <\/td>\n<\/tr>\n
84<\/td>\nA.3\u2002Enclosure requirements <\/td>\n<\/tr>\n
90<\/td>\nAnnex\u00a0B (normative) Flame-resistance tests for applied insulation (exposed to air)
B.1\u2002Test apparatus <\/td>\n<\/tr>\n
91<\/td>\nB.2\u2002Preparation of sample
B.3\u2002Test procedure <\/td>\n<\/tr>\n
92<\/td>\nB.4\u2002Analysis <\/td>\n<\/tr>\n
93<\/td>\nAnnex\u00a0C (normative) Partial discharge testing
C.1\u2002General
C.2\u2002Test circuits and measuring systems
C.3\u2002Calibration of measuring system and calibrators
C.4\u2002Tests <\/td>\n<\/tr>\n
94<\/td>\nC.5\u2002Test procedure
C.6\u2002Maximum permissible partial discharge magnitude <\/td>\n<\/tr>\n
96<\/td>\nAnnex\u00a0D (normative) Voltage dividers
D.1\u2002Introduction
D.2\u2002Glossary
A.1\u2002Construction <\/td>\n<\/tr>\n
97<\/td>\nD.4\u2002Performance <\/td>\n<\/tr>\n
99<\/td>\nAnnex\u00a0E (normative) Conformance testing
E.1\u2002Test and retest schedules <\/td>\n<\/tr>\n
100<\/td>\nE.2\u2002Insulating material changes
E.3\u2002Tests for internal arcing faults (optional) <\/td>\n<\/tr>\n
101<\/td>\nAnnex\u00a0F (normative) Evaluation of changes made in insulating materials and systems
F.1\u2002Overview
F.2\u2002Related standards <\/td>\n<\/tr>\n
102<\/td>\nF.3\u2002Definitions <\/td>\n<\/tr>\n
103<\/td>\nF.4\u2002Requirements for compliance <\/td>\n<\/tr>\n
107<\/td>\nF.5\u2002Tests <\/td>\n<\/tr>\n
108<\/td>\nF.6\u2002Replacement of gas <\/td>\n<\/tr>\n
109<\/td>\nAnnex\u00a0G (normative) Identification of test specimens
G.1\u2002Data
G.2\u2002Drawings <\/td>\n<\/tr>\n
111<\/td>\nAnnex\u00a0H (informative) Exposure to pollution
H.1\u2002General
H.2\u2002Pollution levels
H.3\u2002Minimum requirements for MEGIS <\/td>\n<\/tr>\n
113<\/td>\nAnnex\u00a0I (normative) Method for the weatherproofing test for outdoor switchgear <\/td>\n<\/tr>\n
116<\/td>\nAnnex\u00a0J (informative) Partition classes for MEGIS <\/td>\n<\/tr>\n
117<\/td>\nAnnex\u00a0K (informative) Bibliography <\/td>\n<\/tr>\n
120<\/td>\nBack cover <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

IEEE Standard for Metal-Enclosed Switchgear Rated 1 kV to 52 kV Incorporating Gas Insulating Systems<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
IEEE<\/b><\/a><\/td>\n2019<\/td>\n120<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":211718,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2644],"product_tag":[],"class_list":{"0":"post-211715","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\/211715","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\/211718"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=211715"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=211715"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=211715"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}