INSULATORS FOR OVERHEAD LINES - COMPOSITE LINE POST INSULATORS FOR A.C. SYSTEMS WITH A NOMINAL VOLTAGE GREATER THAN 1000 V - DEFINITIONS, TEST METHODS AND ACCEPTANCE CRITERIA
International Electrotechnical Committee
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Abbreviations
5 Identification
6 Environmental conditions
7 Transport, storage and installation
8 Tolerances
9 Classification of tests
9.1 Design tests
9.2 Type tests
9.3 Sample tests
9.4 Routine tests
10 Design tests
10.1 General
10.2 Test specimens for IEC 62217
10.2.1 Tests on interfaces and connections of end fittings
10.2.2 Tracking and erosion test
10.2.3 Tests on core material
10.3 Product specific pre-stressing for IEC 62217 tests on
interfaces and connections of end fittings
10.3.1 Thermal-mechanical pre-stressing
10.4 Assembled core load tests
10.4.1 Test for the verification of the maximum design
cantilever load (MDCL)
10.4.2 Tensile load test
11 Type tests
11.1 Electrical tests
11.1.1 Vertical mounting arrangement
11.1.2 Horizontal mounting arrangement
11.2 Mechanical tests
11.2.1 Cantilever failing load test
12 Sample tests
12.1 General rules
12.2 Verification of dimensions (E1 + E2)
12.3 Galvanizing test (E1 + E2)
12.4 Verification of the SCL (E1)
12.4.1 Test procedure
12.4.2 Acceptance criteria
12.5 Re-testing procedure
13 Routine tests
13.1 Tensile load test
13.2 Visual examination
Annex A (informative) Notes on the mechanical loads
and tests
Annex B (informative) Determination of the equivalent
bending moment caused by combined loads
Bibliography
Applicable to composite line post insulators consisting of a load-bearing cylindrical insulating solid core consisting of fibres - usually glass - in a resin-based matrix, a housing (outside the insulating core) made of polymeric material and end fittings permanently attached to the insulating core.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 36 |
