BS 5425-1:1986

Foreword
Committees responsible
Specification
Section one. General
1 Scope
2 Definitions
Section two. Constructional requirements
3 Materials
4 Dimensions
Section three. Electrical requirements
5 Mean characteristic impedance (Zm)
6 Attenuation
7 Uniformity of characteristics impedance
8 Screening effectiveness
9 Conductor d.c. resistance
10 Insulation resistance
11 Sheath spark test
Section four. Mechanical requirements
12 Bending
13 Longitudinal pull of conductors other than copper
    covered steel conductors
Section five. Identification, labelling and packaging
14 Identification
15 Labelling
16 Packaging
Appendices
A Recommended schedule of testing
B Mechanical test methods
C Electrical test methods
Tables
1 Resistance factor and minimum elongation for
    conductors
2 Overall diameter and diameter over dielectric
3 Minimum sheath thickness
4 Mean characteristic impedance
5 Maximum attenuation
6 Minimum return loss
7 Maximum surface transfer impedance
8 Maximum conductor d.c. resistance
9 Minimum pulling force for 3 % length extension at
    20 + or - 5 deg C
10 Minimum barrel dimensions (coiling and drumming
    diameters)
11 Mandrel diameters for bending tests
Figures
1 Attenuation measurement: substitution method
2 Attenuation measurement: power ratio method
3 Uniformity of characteristic impedance measurement:
    sweep frequency: return loss bridge method
4 Surface transfer impedance apparatus for frequencies
    up to 30 MHz
5 Surface transfer impedance apparatus for frequencies
    above 30 MHz

For use in the frequency band 5 MHz to 1000 MHz.