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IEEE 1458 2017:2018 Edition

IEEE 1458 2017:2018 Edition

$52.54

IEEE Recommended Practice for the Selection, Field Testing, and Life Expectancy of Molded-Case Circuit Breakers for Industrial Applications

Published By Publication Date Number of Pages
IEEE 2018 89
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Revision Standard – Active. A recommended procedure for the selection, application, and determination of the remaining life in molded-case circuit breaker is provided.

PDF Catalog

PDF Pages PDF Title
1 IEEE Std 1458™-2017 Front cover
2 Title page
4 Important Notices and Disclaimers Concerning IEEE Standards Documents
7 Participants
9 Introduction
10 Contents
12 List of Figures
14 List of Tables
15 1. Overview
1.1 Scope
1.2 Purpose
1.3 The installation code in the United States is the National Electrical Code® (NEC®)
16 2. Normative references
3. Molded-case circuit breaker basics
3.1 Overview
3.2 Introduction
17 3.3 Circuit breakers in general
18 3.4 Circuit breaker standards
3.5 Contacts open and close
3.6 Means to open and close contacts
19 3.7 Means to extinguish an arc
21 3.8 Means to respond to overcurrents/commands
22 3.9 Method for enclosing circuit breaker components
23 3.10 Method for mounting circuit breaker
25 3.11 Molded-case circuit breaker components
26 3.12 Thermal conditions
27 3.13 Short-circuit conditions
3.14 Ground fault conditions
28 3.15 Types of trip units
32 3.16 Circuit breaker selectivity
34 4. Molded-case circuit breaker safety considerations
5. Selection of molded-case circuit breakers
5.1 Introductions
35 5.2 Standard rated molded-case circuit breakers
36 5.3 100-percent rated molded-case circuit breakers
5.4 Voltage rating selection
37 5.5 Current ratings
38 5.6 Current rating selection
39 5.7 Selection of circuit breaker current rating
40 5.8 Interrupting rating
41 6. Estimated available fault current at transformer secondary
42 7. Simplified method to calculate available fault current at transformer secondary
7.1 Introduction
43 7.2 Method 1: Simple approximation
45 7.3 Method 2: Accounting for cable between transformer and molded-case circuit breaker
50 8. Procedures for field testing and determining the remaining life of molded-case circuit breakers
8.1 Introduction
57 8.2 Rated current hold in test
8.3 Exposed face and lug temperature check
58 8.4 Mechanical operation tests
8.5 Insulation resistance test
59 8.6 Individual pole resistance test (millivolt drop)
60 8.7 Inverse-time overcurrent trip test
63 8.8 Instantaneous overcurrent trip test
64 8.9 Accessory devices
65 8.10 Electronic trip unit check
8.11 Electronic trip unit secondary injection test
66 8.12 ICCB inspection and test procedures
68 Annex A (Informative) Guidelines on re-use of low-voltage circuit breakers
A.1 Introduction
A.2 Circuit breaker type
69 A.3 Circuit breaker not installed—stored
A.4 Circuit breaker installed—not in operation
A.5 Circuit breaker installed—in operation
A.6 Refurbished circuit breakers
A.7 Summary
70 Annex B (Informative) Molded-case circuit breakers for dc voltage and frequencies above 60 Hz
B.1 Introduction
71 B.2 DC circuit breaker design
75 B.3 Circuit breakers used in dc application
76 B.4 Dual-rated ac/dc circuit breaker performance
77 B.5 Circuit breaker in mix-use with ac and dc
78 B.6 Application of circuit breakers at frequencies above 60 Hz
B.7 Thermal performance of the circuit breaker
79 B.8 Magnetic performance of the circuit breaker
80 B.9 Interrupting capacity of thermal-magnetic circuit breaker
81 Annex C (Informative) Static converter feeder circuit breaker applications
C.1 Introduction
C.2 Definitions
83 C.3 Static converter feeder circuit breaker application discussion
88 Annex D (Informative) Bibliography
89 Back cover

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