NEN EN 50290-2-1 : 2005

Introduction
1 Scope
2 Normative references
3 Definitions
4 Common design rules
   4.1 Materials
        4.1.1 Conductor materials
        4.1.2 Optical fibres
        4.1.3 Taping/filler
        4.1.4 Insulating and sheathing materials
        4.1.5 Messenger wires
        4.1.6 Armour
   4.2 Cable make-up
        4.2.1 General design
        4.2.2 Sheathing
        4.2.3 Marking
5 Register of symbols used
6 Material constants
   6.1 Table of material constants relating to dielectric and
        sheath and their values for different materials
   6.2 Tables of material constants relating to conductors
   6.3 Construction constants
        6.3.1 Table of construction constants relating to inner
              conductor
        6.3.2 Table of construction constants relating to
              braided outer conductors and screens
   6.4 Braid wire dimensions
   6.5 Attenuation factors
   6.6 Maximum permissible input power/current carrying capacity
        6.6.1 Coaxial cables
        6.6.2 Balanced cables
7 Standard values of characteristic impedance and outer diameter
   of dielectric for coaxial cables
   7.1 Impedance of coaxial cables
   7.2 Nominal diameters over dielectric of coaxial cables
8 Coaxial cable construction details
   8.1 General
   8.2 Inner conductor
   8.3 Stranded inner conductor
   8.4 Braided outer conductor
   8.5 Medium between outer conductor and screen
   8.6 Braided screen
   8.7 Sheath
   8.8 Attenuation
   8.9 Nominal characteristic impedance z[o] and capacitance
        c[2] per unit length
9 Standard values of characteristic impedance and outer diameter
   of dielectric for symmetrical cables
   9.1 Impedance of symmetrical cables
10 Symmetrical cable construction details
   10.1 Attenuation
11 Common characteristics
   11.1 Weight calculation
12 Calculation of electrical properties
   12.1 DC resistance of conductors and screen, per unit length
   12.2 Permissible voltages
        12.2.1 Test voltage, dielectric, u[t]
        12.2.2 Discharge test voltage, dielectric, u[d]
        12.2.3 Test voltage, sheath

Presents the common rules for the design and construction of symmetrical, coaxial and optical cables used for the infrastructure of communication and control networks.