I.S. EN 61235:1997

FOREWORD
SECTION 1: GENERAL
  1 Scope
  2 Normative references
  3 Definitions
     3.1 Terms defined in accordance with IEC 50(151)
     3.2 Terms defined in accordance with IEC 410
     3.3 Definitions of special terms
  4 Classification
     4.1 Mechanical category
     4.2 Electrical category
SECTION 2: TECHNICAL CHARACTERISTICS
  5 Materials
  6 Diameters of tubes
SECTION 3: TYPE TESTS
  7 General
  8 Visual inspection and dimensional check
     8.1 Visual inspection
     8.2 Dimensional check
  9 Dielectric tests
     9.1 Dielectric tests before and after exposure to humidity
     9.2 Dielectric wet test
  10 Mechanical tests
     10.1 Bending tests
     10.2 Torsion test
     10.3 Crushing test
  11 Mechanical fatigue tests
     11.1 Bending test
     11.2 Dielectric tests
SECTION 4: ROUTINE TESTS AND SAMPLING TESTS
  12 Routine tests
  13 Sampling tests
  14 Additional tests not indicated
SECTION 5: SPECIAL CLAUSES
  15 Marking
  16 Modification
  17 Acceptance
  18 Quality assurance plan
Annexes
A - Dielectric tests before and after exposure to humidity
B - Dielectric wet test
C - Mechanical tests
D - Routine tests
E - Sampling procedure
F - Acceptance tests
Annex ZA (normative) Normative references to international
         publications with their corresponding European
         publications

Applies to insulating hollow tubes made of synthetic materials and intended for tools and equipment for work on systems operating at voltages above 1 kV.