IEEE C37.20.7 2017:2018 Edition
$52.54
IEEE Guide for Testing Switchgear Rated Up to 52 kV for Internal Arcing Faults
| Published By | Publication Date | Number of Pages |
| IEEE | 2018 | 84 |
Revision Standard – Active. Procedures for testing and evaluating the performance of switchgear for internal arcing faults is covered. A method of identifying the capabilities of this equipment is given. Service conditions, installation, and application of equipment are also discussed. As used in this document, the term switchgear is used as a general term covering switching and interrupting devices and their combination with associated control, instrumentation, metering, protective and regulating devices, assemblies of those devices with associated interconnections, accessories, and supporting structures used primarily in conjunction with the generation, transmission, distribution, and conversion of electrical power.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | IEEE Std C37.20.7™-2017 Front cover |
| 2 | Title page |
| 4 | Important Notices and Disclaimers Concerning IEEE Standards Documents |
| 7 | Participants |
| 9 | Introduction |
| 11 | Contents |
| 12 | IMPORTANT NOTICE 1. Overview 1.1 Scope 1.2 Background |
| 15 | 2. Normative references |
| 16 | 3. Definitions |
| 17 | 4. Ratings 4.1 General 4.2 Accessibility type 4.3 Internal arcing short-circuit current |
| 18 | 4.4 Arcing duration 5. Tests 5.1 General 5.2 Test sample configuration (general considerations for all equipment) |
| 20 | 5.3 Test conditions |
| 27 | 5.4 Arc initiation |
| 28 | 5.5 Burn indicators (for observing the thermal effects of gases) |
| 31 | 6. Assessment 6.1 Assessment of test results |
| 32 | 6.2 Test report |
| 33 | 6.3 Nameplate |
| 34 | 7. Application considerations 7.1 General 7.2 Potential areas for arcing 7.3 Design changes 7.4 Equipment maintenance |
| 35 | Annex A (informative) Bibliography |
| 36 | Annex B (informative) Application guide B.1 Overview |
| 37 | B.2 Application considerations B.2.2 Strategy |
| 45 | Annex C (normative) Supplemental ratings C.1 Overview C.2 Definitions |
| 48 | Annex D (normative) Metal-enclosed low-voltage power circuit breaker switchgear (IEEE Std C37.20.1) D.1 Scope D.2 Test sample configuration |
| 49 | D.3 Test conditions D.4 Arc initiation |
| 50 | D.5 Additional ratings |
| 52 | Annex E (normative) Metal-clad switchgear (IEEE Std C37.20.2) E.1 Scope E.2 Test sample configuration E.3 Test conditions |
| 53 | E.4 Arc initiation E.5 Additional ratings |
| 56 | Annex F (normative) Metal-enclosed interrupter switchgear (IEEE Std C37.20.3) F.1 Scope F.2 Test sample configuration |
| 57 | F.3 Test conditions F.4 Arc initiation F.5 Additional ratings |
| 59 | Annex G (normative) Outdoor equipment G.1 Scope G.2 Test sample configuration |
| 60 | G.3 Test conditions |
| 61 | G.4 Arc initiation G.5 Additional ratings |
| 64 | Annex H (normative) Motor control centers (UL 845) H.1 Scope H.2 Test sample configuration |
| 65 | H.3 Test conditions H.4 Arc initiation |
| 68 | Annex I (normative) Medium-voltage ac controllers (UL 347) I.1 Scope I.2 Test sample configuration |
| 69 | I.3 Test conditions I.4 Arc initiation |
| 70 | I.5 Additional ratings |
| 71 | Annex J (normative) Switchboards (UL 891) J.1 Scope J.2 Test sample configuration |
| 72 | J.3 Test conditions |
| 73 | J.4 Arc initiation |
| 75 | Annex K (normative) Metal-enclosed bus (IEEE Std C37.23) K.1 Scope K.2 Test sample configuration |
| 76 | K.3 Test conditions |
| 77 | K.4 Arc initiation K.5 Burn indicator placement |
| 78 | K.6 Additional ratings |
| 81 | Annex L (normative) Metal enclosed switchgear incorporating gas-insulating systems (IEEE PC37.20.9) L.1 Scope L.2 Test sample configuration |
| 82 | L.3 Test conditions L.4 Arc initiation L.5 Additional ratings |
| 84 | Back cover |
