IEEE 485 2020

$43.33

IEEE Recommended Practice for Sizing Lead-Acid Batteries for Stationary Applications

Published By	Publication Date	Number of Pages
IEEE	2020	69

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Description

Revision Standard – Active. Methods for defining the dc load and for sizing a lead-acid battery to supply that load for stationary battery applications in float service are described in this recommended practice. Some factors relating to cell selection are provided for consideration. Installation, maintenance, qualification, testing procedures, and consideration of battery types other than lead-acid are beyond the scope of this recommended practice. Design of the dc system and sizing of the battery charger(s) are also beyond the scope of this recommended practice.

PDF Catalog

PDF Pages	PDF Title
1	IEEE Std 485™-2020 Front cover
2	Title page
4	Important Notices and Disclaimers Concerning IEEE Standards Documents
7	Participants
9	Introduction
10	Contents
11	List of Figures
12	List of Tables
13	1. Scope 2. Normative references
14	3. Definitions
15	4. Defining loads 4.1 General considerations 4.2 Load classification
17	5. Cell selection
18	6. Determining battery size 6.1 General 6.2 Number of cells
19	6.3 Additional considerations
21	6.4 Cell size
24	6.5 Cell sizing worksheet
26	7. Cell voltage/time profile calculation
27	Annex A (informative) Battery and cell sizing examples A.1 General A.2 Required number of cells
29	A.3 Required cell capacity
33	Annex B (informative) Calculating cell voltage during discharge B.1 General B.2 Method
36	B.3 Sample calculations
42	Annex C (informative) Consideration of cell types
43	Annex D (informative) Constant power and constant resistance sizing D.1 Overview
44	D.2 Examples
45	D.3 Conversion from constant power loads to constant current
50	D.4 Conversion from constant resistance loads to constant current D.5 Other considerations D.6 Summary
51	Annex E (informative) Development and use of battery discharge curves E.1 Overview E.2 Discharge curve fundamentals
56	E.3 Using the characteristic curve
60	Annex F (informative) Random loads
66	Annex G (informative) Full-size worksheet
68	Annex H (informative) Bibliography
69	Back cover