IEEE C62.11-2012(Redline)

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IEEE Standard for Metal-Oxide Surge Arresters for AC Power Circuits (>1 kV) (Redline)

Published By	Publication Date	Number of Pages
IEEE	2012

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Description

Revision Standard – Superseded. Metal-oxide surge arresters (MOSAs) designed to repeatedly limit the voltage surges on 48 Hz to 62 Hz power circuits (> 1000 V) by passing surge discharge current and automatically limiting the flow of system power current are addressed in this standard. This standard applies to devices for separate mounting and to devices supplied integrally with other equipment. The tests demonstrate that an arrester is able to survive the rigors of reasonable environmental conditions and system phenomena while protecting equipment and/or the system from damaging overvoltages caused by lightning, switching, and other undesirable surges.

PDF Catalog

PDF Pages	PDF Title
1	IEEE Std C62.11™-2012 front cover
3	Title page
6	Notice to users Laws and regulations Copyrights Updating of IEEE documents Errata Patents
8	Participants
10	Introduction
12	Contents
15	IMPORTANT NOTICE 1. Overview 1.1 Scope 1.2 Purpose
16	2. Normative references
17	3. Definitions
22	4. Service conditions 4.1 Usual service conditions 4.1.1 Physical conditions
23	4.1.2 System conditions 4.2 Unusual service conditions 4.2.1 Physical conditions 4.2.2 System conditions
24	5. Standard voltage ratings: duty-cycle voltage and maximum continuous operating voltage (MCOV) 6. Performance characteristics and tests
26	7. Test requirements 7.1 Complete arrester test samples 7.2 Prorated section 7.2.1 Prorating for discharge voltage tests 7.2.2 Prorating for design test involving demonstration of thermal recovery
28	7.2.2.1 Outdoor arresters 7.2.2.2 Liquid-immersed arresters 7.2.2.3 Test to verify thermal equivalency between complete arrester and thermally prorated arrester section
30	7.3 Test measurements 7.4 Impulse test-wave tolerances 7.5 Power-frequency test voltages 8. Design tests 8.1 Arrester insulation withstand test 8.1.1 Samples 8.1.2 Procedure
31	8.1.2.1 Distribution arresters used in open air
32	8.1.2.2 Liquid-immersed arresters 8.1.2.3 Deadfront arresters 8.1.2.4 Station and intermediate class arresters
33	8.1.3 Evaluation 8.2 Discharge-voltage characteristics test 8.2.1 Samples 8.2.2 Procedure
34	8.2.2.1 Normalized lightning impulse discharge voltages
35	8.2.2.2 Normalized switching impulse discharge voltages 8.2.2.3 Normalized FOW discharge voltage 8.2.3 Evaluation
36	8.3 Power-frequency sparkover test for arresters equipped with gaps 8.3.1 Samples 8.3.2 Procedure 8.3.3 Evaluation 8.4 Impulse protective level voltage-time characteristic test for arresters equipped with gaps 8.4.1 Samples 8.4.2 Procedure
37	8.4.2.1 Front-of-wave impulse protective level
38	8.4.2.2 The 1.2/50 impulse protective level test 8.4.2.3 Slow-front (switching surge) impulse protective level test
40	8.4.3 Evaluation 8.5 Accelerated aging test of varistors 8.5.1 Samples 8.5.2 Procedure 8.5.3 Evaluation 8.6 Accelerated aging test of polymer-housed distribution arresters with exposure to light and electrical stress
41	8.6.1 Accelerated aging by exposure to light 8.6.1.1 Samples 8.6.1.2 Procedure 8.6.1.3 Evaluation 8.6.2 Accelerated aging by exposure to electrical stress 8.6.2.1 Samples 8.6.2.2 Initial measurements 8.6.2.3 Procedure
42	8.6.2.4 Evaluation
43	8.7 Accelerated aging test of polymer-housed arresters with exposure to salt fog 8.7.1 Samples 8.7.2 Initial measurements 8.7.3 Procedure
44	8.7.4 Evaluation 8.8 Contamination test 8.8.1 Samples
45	8.8.2 Procedure 8.8.2.1 Power-frequency test voltage source 8.8.2.2 Contaminant preparation 8.8.2.3 Test
46	8.8.3 Evaluation 8.9 Distribution arrester seal integrity design test 8.9.1 Samples 8.9.2 Initial measurements 8.9.3 Procedure 8.9.3.1 Terminal torquing
47	8.9.3.2 Thermal conditioning 8.9.3.3 Seal pumping 8.9.4 Evaluation 8.10 Radio-influence voltage (RIV) test 8.10.1 Samples
48	8.10.2 Procedure 8.10.3 Evaluation 8.11 Partial discharge (PD) test 8.11.1 Samples
49	8.11.2 Procedure 8.11.3 Evaluation 8.12 High-current short-duration withstand test 8.12.1 Samples 8.12.2 Procedure
50	8.12.3 Evaluation 8.13 Low-current long-duration withstand test 8.13.1 Samples 8.13.2 Initial measurements 8.13.3 Procedure
51	8.13.4 Evaluation 8.14 Switching surge energy rating test 8.14.1 General 8.14.2 Test samples 8.14.3 Initial measurements
52	8.14.4 Test procedure 8.14.4.1 Conditioning 8.14.4.2 Thermal recovery
53	8.14.5 Test Evaluation 8.15 Single-impulse withstand rating test 8.15.1 Samples 8.15.2 Procedure
54	8.15.3 Evaluation 8.16 Duty-cycle test 8.16.1 Samples 8.16.2 Initial measurements
55	8.16.3 Procedure 8.16.4 Evaluation 8.17 Temporary overvoltage (TOV) test
56	8.17.1 Samples 8.17.2 Initial measurements 8.17.3 Procedure
57	8.17.3.1 “No Prior Duty” test 8.17.3.2 “Prior Duty” data 8.17.4 Evaluation 8.18 Short Circuit Test 8.18.1 General
58	8.18.2 Preparation of the test samples 8.18.2.1 Porcelain-housed arresters — Design A
59	8.18.2.2 Porcelain-housed arresters — Design B 8.18.2.3 Polymer-housed arrester — Design A
60	8.18.2.4 Polymer-housed arresters — Design B
63	8.18.3 Mounting of the test sample
65	8.18.4 High-current short-circuit tests 8.18.4.1 High-current tests at full voltage (77% to 107% of duty-cycle voltage rating)
66	8.18.4.2 High-current test at less than 77% of duty cycle voltage ratings
67	8.18.5 Low current short-circuit test 8.18.6 Evaluation of test results
68	8.19 Failure mode test for liquid-immersed arresters 8.19.1 Samples
69	8.19.1.1 Sample preparation 8.19.1.2 Sample mounting 8.19.2 Procedure
70	8.19.2.1 Test for fail-open mode 8.19.2.2 Test for fail-short mode 8.19.3 Evaluation 8.20 Deadfront arrester failure mode test 8.20.1 Samples 8.20.1.1 Sample mounting 8.20.1.2 Sample preparation
71	8.20.2 Procedure 8.20.3 Evaluation 8.21 Distribution arrester disconnector test 8.21.1 Samples 8.21.1.1 Sample preparation 8.21.1.2 Sample mounting
72	8.21.2 Procedure 8.21.2.1 Discharge-current and duty-cycle tests 8.21.2.2 Time-current characteristic test
73	8.21.3 Evaluation 8.22 Maximum design cantilever load (MDCL) and moisture ingress test for polymer-housed arresters 8.22.1 Samples
74	8.22.2 Initial measurements 8.22.3 Procedure 8.22.3.1 Terminal torque preconditioning 8.22.3.2 Thermomechanical preconditioning
78	8.22.3.3 Water immersion test 8.22.4 Evaluation
79	8.23 Ultimate mechanical strength-static (UMS-static) test for porcelain-housed arresters 8.23.1 Samples 8.23.2 Procedure 8.23.3 Evaluation 8.24 Seismic capability verification 9. Construction 9.1 Identification data
80	9.2 Standard mountings 9.2.1 Station and intermediate arresters 9.2.2 Distribution arresters 9.3 Iron and steel parts 9.4 Terminal connections 9.4.1 Station and intermediate class arresters
81	9.4.2 Distribution arresters 9.5 Housing leakage distance 10. Protective characteristics 11. Certification test procedures for arresters applied to unit substations 11.1 General 11.2 Tests
82	11.2.1 Discharge voltage 11.2.2 Duty-cycle tests 11.2.3 High-current short-duration test 11.3 Evaluation procedure 11.4 Certification
83	11.5 Production monitoring and product retest requirements 11.5.1 General 11.5.2 Production monitoring 11.5.3 Product retest requirements 12. Routine tests 12.1 Current sharing test
84	12.1.1 Current measurements 12.1.2 Voltage measurements 12.2 Discharge-voltage test 12.3 Partial Discharge (PD) test
85	12.4 Seal test 12.5 Power-frequency test 12.6 Power-frequency sparkover
86	Annex A (informative) Example use of procedure of 8.2 Discharge voltage characteristics
91	Annex B (informative) Basis for accelerated aging procedure
93	Annex C (informative) Surge arrester classification and performance requirements
94	Annex D (informative) Rationale for test prescribed by IEEE Std C62.11-2012
121	Annex E (informative) Bibliography