IEEE 1527 2018

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IEEE Recommended Practice for the Design of Buswork Located in Seismically Active Areas

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IEEE	2018	91

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Description

Revision Standard – Active. Recommended practices for the engineering and design of flexible and rigid bus connections for bus and equipment in electric power substations located in seismically active areas are provided in this document.

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PDF Pages	PDF Title
1	IEEE Std 1527™-2018 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	IMPORTANT NOTICE 1. Overview 1.1 Scope 1.2 Purpose 1.3 Application
16	2. Normative references 3. Definitions, acronyms, and abbreviations 3.1 Definitions
18	3.2 Acronyms and abbreviations 4. General design process 4.1 Introduction
19	4.2 Main design criteria
20	4.3 Design process for seismic connections
21	5. Equipment movement and elongation demand 5.1 Introduction
22	5.2 Seismic input 5.3 Foundation considerations 5.4 Basic connection geometry
23	5.5 Determination of the elongation demand
29	6. Design of flexible conductor 6.1 Advantages and limitations of flexible connection
30	6.2 Available shapes, required conductor length, and qualitative behavior
34	6.3 Verification of clearances, flexibility, and stability using the nonlinear finite element method
40	6.4 Verification of clearances, stability, and flexibility experimentally
42	6.5 Spacers for bundled conductors
43	6.6 Standardized configuration design
45	7. Design of rigid bus with flexible connector 7.1 General description
47	7.2 Advantages and limitations of RB-FCs
48	7.3 Design principles of an RB-FC 7.4 Available methods to evaluate the interaction effect
49	7.5 Determination of RB-FC in-line load displacement properties
51	7.6 Evaluation of interaction between equipment connected by rigid bus using a simplified analysis method
57	8. Methodology to account for the interaction effects of conductors in the seismic qualification of substation equipment 8.1 Introduction 8.2 Inclusion of interaction effects in the seismic qualification of equipment
59	9. Other considerations
60	Annex A (informative) Bibliography
63	Annex B (informative) Electrical clearances
65	Annex C (informative) Generalized single-degree-of-freedom (SDOF) method
68	Annex D (informative) Comparison between combination methods to obtain the elongation demand
70	Annex E (informative) Effect of adding slack on the catenary configuration
73	Annex F (informative) Examples of finite element calculations
75	Annex G (informative) Common conductor input properties for finite element calculations
76	Annex H (informative) Examples of flexibility calculations for flexible conductors
78	Annex I (informative) Maximum horizontal forces measured during experiments
79	Annex J (informative) Other considerations J.1 Corona losses
80	J.2 Current-carrying capacity
82	J.3 High-current connections
86	J.4 Type of material to use—copper versus aluminum
88	J.5 Fault conditions J.6 Connection hardware
89	J.7 Bird caging of flexible conductors
90	J.8 Prevention of clearance violation with flexible bus using rigid bus extensions
91	Back cover

Additional information

Standard Title	IEEE Recommended Practice for the Design of Buswork Located in Seismically Active Areas
Published Code	IEEE
Publication Date	2018
Pages Count	91

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IEEE 1527 2018

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