IEC 61112:2009

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
  4.1 General
  4.2 Classification
  4.3 Physical requirements
      4.3.1 Composition
      4.3.2 Shape and design
      4.3.3 Dimensions and tolerances
      4.3.4 Workmanship and finish
  4.4 Mechanical, climatic and environmental requirements
  4.5 Dielectric requirements
  4.6 Marking
  4.7 Packaging
  4.8 Instructions for use
5 Tests
  5.1 General
  5.2 Visual inspection and measurements
      5.2.1 General
      5.2.2 Classification
      5.2.3 Composition
      5.2.4 Dimensions, workmanship and finish
      5.2.5 Thickness
  5.3 Marking
      5.3.1 Visual inspection and measurement
      5.3.2 Durability of marking
  5.4 Packaging and instructions for use
  5.5 Mechanical tests
      5.5.1 General
      5.5.2 Tensile strength and elongation at break
      5.5.3 Mechanical puncture resistance
      5.5.4 Tension set for elastomer material
      5.5.5 Tear resistance test for plastic material
  5.6 Dielectric tests
      5.6.1 General
      5.6.2 Electrodes
      5.6.3 Test equipment
      5.6.4 Electrical test procedure
  5.7 Ageing tests
  5.8 Thermal tests
      5.8.1 Flame retardance test
      5.8.2 Low temperature folding test (except for category
            C blankets)
6 Tests on electrical insulating blankets with special
  properties
  6.1 General
  6.2 Category A: Acid resistance
  6.3 Category H: Oil resistance
  6.4 Category Z: Ozone resistance
      6.4.1 General
      6.4.2 Test methods
  6.5 Category M: Mechanical puncture resistance
  6.6 Category C: Extremely low temperature folding test
7 Conformity assessment of electrical insulating blankets
  having completed the production phase
8 Modifications
Annex A (informative) Guidelines for the selection of the
        class of electrical insulating blankets in relation
        to nominal voltage of a system
Annex B (informative) In-service care and testing
Annex C (normative) Suitable for live working; double
        triangle (IEC 60417-5216(2002-10))
Annex D (normative) General type test procedure
Annex E (normative) Liquid for tests on electrical insulating
        blankets of category H - Oil resistance
Annex F (normative) Classification of defects and tests to be
        allocated
Bibliography

IEC 61112:2009 is applicable to electrical insulating blankets for the protection of workers from accidental contact with live or earthed electrical conductors, apparatus or circuits and avoidance of short circuits on electrical installations. This second edition cancels and replaces the first edition, published in 1992, and its Amendment 1 (2002). This edition constitutes a technical revision. It includes the following significant technical changes from the previous edition:
- general review of the requirements and test provisions;
- limitation of the scope in terms of the minimum width of electrical insulating blankets in rolls;
- preparation of the elements of evaluation of defects, and general application of IEC 61318 Ed.3;
- revision of existing annexes;
- deletion of Annexes D and F, not applicable according to IEC 61318 Ed.3;
- introduction of a new normative Annex F on classification of defects.