IEC 60794-3-50:2008

FOREWORD
1 Scope
2 Normative references
3 Symbols and abbreviations
4 Family specification for gas pipe cables and subducts
  for installation by blowing and/or pulling/dragging
  in gas pipes (blank detail specification and minimum
  requirements)
  4.1 Construction
      4.1.1 General
      4.1.2 Subducts
      4.1.3 Gas pipe cables
  4.2 Optical fibres
      4.2.1 Single-mode dispersion unshifted (B1.1) optical fibre
      4.2.2 Single-mode dispersion shifted (B2) optical fibre
      4.2.3 Single-mode non-zero dispersion (B4) optical fibre
      4.2.4 Single-mode (B6) optical fibre
      4.2.5 Multimode fibres
  4.3 High pressure gas pipe cable constructions
      4.3.1 Cable for installation within subducts (previously
            installed within the high pressure gas pipe)
      4.3.2 Cable for direct installation within the high
            pressure gas pipe
      4.3.3 Subduct construction
  4.4 Installation and operating conditions
      4.4.1 Tests applicable to cables/cable elements
      4.4.2 Installation conditions
  4.5 Mechanical and environmental tests
      4.5.1 Subducts
      4.5.2 Cable for installation within subducts (previously
            installed into the gas pipe)
      4.5.3 Cables for direct installation into the high pressure
            gas pipe
Annex A (informative) Blank detail specification
Annex B (informative) OF cables for high pressure gas pipes
Annex C (informative) Examples of subducts and high pressure
        gas pipe cables
Annex D (informative) Example for installation schemes of
        cables in high pressure gas pipes (fibre-in-gas)

IEC 60794-3-50:2008(E) is part of the IEC 60794 family specification that covers gas pipe cables and subducts for installation by blowing and/or pulling/dragging in high pressure gas pipes (400 mbar to 4 bar). Systems built with components covered by this standard are subject to the requirements of sectional specification IEC 60794-3. This standard is to be used in conjunction with IEC 60794-1-1 and IEC 60794-1-2, and IEC 60794-3.