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BS EN 61466-1:2016

BS EN 61466-1:2016

$142.49

Composite string insulator units for overhead lines with a nominal voltage greater than 1000 V – Standard strength classes and end fittings

Published By Publication Date Number of Pages
BSI 2016 28
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This part of IEC 61466 is applicable to composite string insulator units for a.c. overhead lines with a nominal voltage greater than 1 000 V and a frequency not greater than 100 Hz.

It also applies to insulators of similar design used in substations or on electric traction lines.

This standard applies to string insulator units of composite type with ball, socket, tongue, clevis, Y-clevis or eye couplings, or a combination thereof.

The object of this standard is to prescribe specified values for the mechanical characteristics of the composite string insulator units and define the main dimensions of the couplings to be used on the composite string insulator units in order to permit the assembly of insulators or fittings supplied by different manufacturers and to allow, whenever practical, interchangeability with existing installations.

It also defines a standard designation system for composite string insulator units.

NOTE 1

General definitions and methods of testing are given in IEC 61109 .

NOTE 2

Only the dimensions necessary for assembly of the couplings are dealt with in this International Standard. Properties of material and working loads are not specified. The coordination of dimensions of the end-fittings with the strength classes is specified in Clause 7.

PDF Catalog

PDF Pages PDF Title
4 European foreword
Endorsement notice
6 English
CONTENTS
8 FOREWORD
10 1 Scope
2 Normative references
3 Mechanical and dimensional characteristics
11 4 Plan of the standard
5 Insulator designation
6 Marking
7 Composite insulator units
12 Table 1 – Insulator designation
Figures
Figure 1 – Designation letters of couplings
13 Annex A (normative) Ball and socket couplings, N series
A.1 General
A.2 Dimensions
A.3 Constructional features of the gauges
A.4 Plan of the annex
A.5 Designation
14 A.6 Gauges for ball couplings
Figure A.1 – Dimensions of NOT GO gauges for ball couplings
Figure A.2 – Dimensions of GO gauges for ball couplings
Tables
Table A.1 – Dimensions of NOT GO gauges for ball couplings
15 Figure A.3 – Dimensions of GO and NOT GO gauges for ball couplings
Table A.2 – Dimensions of GO gauges for ball couplings
Table A.3 – Dimensions of GO and NOT GO gauges for ball couplings
16 Figure A.4 – Dimensions of NOT GO gauges for ball couplings
Table A.4 – Dimensions of NOT GO gauges for ball couplings
17 Figure A.6 – Dimensions of gauge for ball coupling size 22N
Figure A.5 – Dimensions of gauges for ball coupling size 16N and 18N
Table A.5 – Dimensions of gauges for ball couplings
18 A.7 NOT GO and GO Gauges for socket couplings
Figure A.7 – Dimensions of NOT GO and GO gauges for socket couplings
19 Table A.6 – Dimensions of NOT GO and GO gauges for socket couplings
20 Annex B (normative) Clevis and tongue couplings, N series
B.1 General
B.2 Dimensions
B.3 Plan of the annex
B.4 Designation
21 Figure B.1 – Dimensions of clevis and tongue couplings
Table B.1 – Dimensions of clevis and tongue couplings
22 Annex C (normative) Y-clevis couplings
C.1 General
C.2 Dimensions
C.3 Plan of the annex
C.4 Designation
Figure C.1 – Dimensions of Y-clevis gauges
23 Figure C.2 – Dimensions of Y-clevis couplings and gauges
Table C.1 – Dimensions of Y-clevis couplings
24 Annex D (normative) Eye couplings
D.1 General
D.2 Dimensions
D.3 Plan of the annex
D.4 Designation
25 Figure D.1 – Dimensions of eye couplings
Table D.1 – Dimensions of eye couplings
26 Bibliography

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BS EN 61466-1:2016
$142.49