EN 61284:1997

Overhead lines - Requirements and tests for fittings

Applies to fittings for overhead lines of nominal voltage above 45 kV. It may also be applied to fittings for overhead lines of lower nominal voltage and to similar fittings for substations.

Freileitungen - Anforderungen und Prüfungen für Armaturen

Lignes aériennes - Exigences et essais pour le matériel d'équipement

S'applique au matériel d'équipement pour lignes aériennes dont la tension nominale dépasse 45 kV. Il est possible de l'appliquer également aux matériels d'équipement pour lignes aériennes dont la tension nominale est inférieure et à un matériel d'équipement similaire pour les postes.

Nadzemni vodi - Zahteve in preskusi za obesno opremo (IEC 61284:1997)

General Information

• Status: Published
• Publication Date: 20-Nov-1997
• Withdrawal Date: 30-Jun-1998
• ICS: 29.240.20 - Power transmission and distribution lines
• Technical Committee: CLC/TC 11 - Overhead electrical lines exceeding 1 kV a.c. (1,5 kV d.c.)
• Drafting Committee: IEC/TC 11 - IEC_TC_11
• Parallel Committee: IEC/TC 11 - IEC_TC_11
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 21-Nov-1997
• Completion Date: 21-Nov-1997
• Ref Project: SIST EN 61284:1999 - Overhead lines - Requirements and tests for fittings

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-1999
Nadzemni vodi - Zahteve in preskusi za obesno opremo (IEC 61284:1997)
Overhead lines - Requirements and tests for fittings
Freileitungen - Anforderungen und Prüfungen für Armaturen
Lignes aériennes - Exigences et essais pour le matériel d'équipement
Ta slovenski standard je istoveten z: EN 61284:1997
ICS:
29.240.20 Daljnovodi Power transmission and
distribution lines
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

NORME
CEI
INTERNATIONALE
IEC
INTERNATIONAL
Deuxième édition
STANDARD
Second edition
1997-09
Lignes aériennes –
Exigences et essais pour le matériel
d’équipement
Overhead lines –
Requirements and tests for fittings
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61284 © IEC:1997 – 3 –
CONTENTS
Page
FOREWORD . 9
Clause
1 Scope . 11
2 Normative references. 11
3 Definitions. 13
4 Requirements . 17
4.1 General requirements.17
4.1.1 Design. 17
4.1.2 Materials . 17
4.1.3 Dimensions and tolerances . 19
4.1.4 Protection against corrosion . 19
4.1.5 Marking . 19
4.1.6 Instructions for assembly . 21
4.2 Requirements for specific fittings. 21
4.2.1 Insulator set fittings and earth wire fittings. 21
4.2.2 Suspension clamps. 23
4.2.3 Fittings for jointing, terminating and repairing conductor and earth wire . 25
4.2.4 Insulator protective fittings . 25
5 Quality assurance. 27
6 Classification of tests – type tests, sample tests, routine tests . 27
6.1 Type tests . 27
6.1.1 General . 27
6.1.2 Application . 27
6.2 Sample tests. 27
6.2.1 General . 27
6.2.2 Application . 31
6.2.3 Sampling and acceptance criteria. 31
6.3 Routine tests. 31
6.3.1 General . 31
6.3.2 Application and acceptance criteria . 31
7 Visual examination . 31
8 Dimensional and material verification. 33
9 Hot dip galvanizing . 33
10 Non-destructive testing. 35
11 Mechanical tests. 35
11.1 Number of fittings to be tested . 35
11.2 Test piece and attachments for mechanical damage and failure load tests,
conductors used in the mechanical tests. 35

61284 © IEC:1997 – 5 –
Articles Page
11.3 Insulator set fittings and earth wire fittings. 35
11.3.1 Mechanical damage and failure load test. 37
11.3.2 Mechanical damage and failure load test of the attachment point used
during erection. 37
11.4 Suspension clamps. 37
11.4.1 Vertical damage load and failure load test . 37
11.4.2 Slip test on standard clamps with a specified minimum and maximum
slip load . 39
11.4.3 Slip test on standard clamps with only specified minimum slip load. 41
11.4.4 Slip test on controlled slippage clamps . 41
11.4.5 Clamp bolt tightening test. 43
11.5 Tension clamps, dead-end tension joints and mid-span tension joints. 45
11.5.1 Tensile test. 45
11.5.2 Mechanical damage and failure load test. 47
11.5.3 Mechanical damage and failure load test of the attachment point used
during erection. 47
11.5.4 Clamp bolt tightening test. 47
11.6 Partial tension fittings . 47
11.6.1 Partial tension fittings other than T connectors . 49
11.6.2 T connectors . 49
11.7 Repair sleeves . 49
11.8 Insulator protective fittings .51
12 Magnetic losses test. 51
12.1 General . 51
12.2 Test procedure. 51
13 Heat cycle tests . 71
13.1 Purpose. 71
13.2 Joints. 71
13.2.1 General. 71
13.2.2 Service temperatures . 71
13.2.3 Classification for test purposes . 71
13.3 Test specimens. 73
13.3.1 General. 73
13.3.2 Multi-range connectors. 73
13.3.3 Preparation. 73
13.3.4 Data on test specimens. 73
13.4 Test arrangements.73
13.4.1 Test conditions . 73
13.4.2 Reference conductor. 75
13.4.3 Potential points. 75
13.4.4 Installation of test loop. 75
13.4.5 Measurements . 75

61284 © IEC:1997 – 7 –
Articles Page
13.5 Heat cycle test procedure . 77
13.5.1 General. 77
13.5.2 Joints of class A . 79
13.5.3 Joints of class B . 81
14 Corona and radio interference voltage (RIV) tests. 83
14.1 Purpose. 83
14.2 Description of test methods . 83
14.3 General . 85
14.4 Test circuit and instruments. 87
14.5 Corona and RIV test procedures. 87
14.6 Acceptance criteria. 89
14.7 Test report. 89
14.8 Voltage method. 89
14.8.1 Adjacent conductors in a three-phase system . 89
14.8.2 Test set-up and dimensions. 91
14.8.3 Critical variant. 99
14.8.4 Distance from wall (reflection plane) w . 99
14.8.5 Minimum clearance from adjacent live components. 99
14.8.6 Metallic wall . 101
14.9 Voltage gradient method. 101
14.9.1 Conductor voltage on three-phase system.
...