Table of Contents

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 General
5 Highest voltage for equipment and rated
   insulation level
6 Transformers with re-connectable windings
7 Dielectric tests
8 Dielectric tests on transformers that have
   been in service
9 Insulation of auxiliary wiring (AuxW)
10 Applied voltage test (AV)
11 Induced voltage tests (IVW and IVPD)
12 Line terminal AC withstand test (LTAC)
13 Lightning impulse tests (LI, LIC, LIN, LIMT)
14 Switching impulse test (SI)
15 Action following test failure
16 External clearances in air
Annex A (informative) - Application guide for partial
        discharge measurements on transformers
Annex B (informative) - Overvoltage transferred from
        the high-voltage winding to a low-voltage
        winding
Annex C (informative) - Information on transformer
        insulation and dielectric tests to be
        supplied with an enquiry and with an order
Annex D (informative) - Neutral insulation voltage
        level calculation
Annex E (informative) - Basis for dielectric tests,
        insulation levels and clearances
Bibliography

Abstract

Provides details of the applicable dielectric tests and minimum dielectric test levels.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Electrotechnical Committee
Pages
ISBN
Committee	TC 14