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IEEE 1410 2011

$47.67

IEEE Guide for Improving the Lightning Performance of Electric Power Overhead Distribution Lines

Published By Publication Date Number of Pages
IEEE 2011 73
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Revision Standard – Active. Factors that contribute to lightning-caused faults on the line insulation of overhead distribution lines and suggested improvements to existing and new constructions are identified in this guide.

PDF Catalog

PDF Pages PDF Title
1 IEEE Std 1410ā„¢-2010, Front cover
3 Title page
4 Grateful acknowledgments
6 Introduction
Notice to users
Laws and regulations
Copyrights
7 Updating of IEEE documents
Errata
Interpretations
Patents
8 Participants
10 Contents
11 IMPORTANT NOTICE
1. Overview
1.1 Scope
12 1.2 Purpose
2. Normative references
3. Definitions
14 4. Lightning parameters
4.1 Lightning incidence
4.1.1 Statistical considerations
4.1.2 Ground flash density from thunder data
15 4.1.3 Ground flash density from lightning optical transient density
18 4.1.4 Ground flash density from lightning location networks
19 4.2 Electrical characteristics of lightning
4.2.1 Waveshape parameters
20 4.2.2 Log-normal statistical distribution
21 4.2.3 Parameters of negative downward strokes
22 4.2.4 Amplitude and frequency dependence
23 5. Lightning performance of overhead distribution lines
5.1 Overvoltages from direct lightning flashes to unprotected phase conductors
5.1.1 Lightning incidence and structure height
24 5.1.2 Lightning interception from nearby structures and trees
25 5.1.3 Lightning flashovers from direct strokes
5.1.3.1 Flashover rate from direct flashes on unprotected phases
5.1.3.2 Low-frequency, low current surge impedance of phase conductor
26 5.1.3.3 Effects of corona at high voltage
5.1.3.4 Effects of imperfect soil at high frequency
27 5.1.3.5 Fault rate from direct flashes with arc quenching on unprotected phases
5.2 Overvoltages from lightning flashes to objects near the line
30 5.3 Distribution line insulation level
31 5.4 CFO voltage of combined insulation
32 5.5 Determining the CFO voltage of structures with series insulation
34 5.6 Practical considerations when increasing structure CFO
5.6.1 Guy wires
5.6.2 Fuse cut-outs
5.6.3 Height of neutral wire
35 5.6.4 Electrically conducting structural materials
5.6.5 Spark gaps and insulator bonding
5.6.6 Multiple circuits on same pole
5.6.7 Spacer-cable circuits
36 5.7 Arc-quenching capability of wood
5.8 Wood damage caused by lightning
37 5.9 Limits to increased insulation strength for improved lightning performance
6. OHGW protection of distribution lines
38 6.1 Shielding angle
39 6.2 Insulation requirements
6.3 Effect of grounding and insulation level
40 6.4 Distribution underbuild
6.5 Overhead groundwires and arresters
41 7. Arrester protection of distribution lines
7.1 Arrester lead length considerations
7.2 Flashovers from nearby strokes
42 7.3 Flashovers from direct strokes
43 7.3.1 Top-phase arrester protection
7.3.2 Arrester energy absorption capability
44 8. Burial protection of distribution lines
8.1 Direct stroke damage to buried cables
45 8.2 Induced currents and voltages in buried cables
46 Annex A (informative) Examples of guide usage
50 Annex B (informative) Technical modeling and assumptions
67 Annex C (informative) Bibliography
IEEE 1410 2011
$47.67