BS 2316-1&2(1968) : 1968

Cooperating organizations
Foreword
Specification
Part 1. General requirements and tests
1. General
1.1 Scope
1.2 Definitions
1.3 Nature of tests
1.4 Marking
2. Requirements for tests
2.1 Conditions of measurement and test
2.2 Methods of test or measurement
2.3 Test samples
2.4 Test sequence (under consideration)
3. Requirements for components of finished cables
3.1 Copper components
3.2 Copper covered steel wire
3.3 Steel
3.4 Aluminium
3.5 Lead alloy
3.6 Brass
3.7 Paper
3.8 Polythene
3.9 Polyvinyl-chloride
3.10 Jute
3.11 Preservative compound
3.12 Polytetrafluoroethylene (PTFE)
3.13 Nylon
3.14 Fluorinated ethylene propylene (FEP)
4. Constructional requirements
4.1 General
4.2 Inner conductor or conductors
4.3 Dielectric
4.4 Outer conductor or screen
4.5 Outer protection
5. Electrical tests
5.1 General
5.2 Spark test on sheath
5.3 Voltage test on dielectric
5.4 Insulation resistance
5.5 Conductor resistance
5.6 Capacitance
5.7 Capacitance unbalance
5.8 Discharge test
5.9 Attenuation
5.10 Velocity ratio
5.11 Mean characteristic impedance (Zm)
5.12 Uniformity of effective characteristic
     impedance (Ze)
5.13 Surface transfer impedance (ZT)
6. Climatic and mechanical robustness tests
6.1 General
6.2 Capacitance and attenuation stability
6.3 Thermal stability tests
6.4 Dimensional stability test for cables with d.o.d.
     < 0.330 in (8.382 mm)
6.5 Bending and air pressure test
7. Sealing
7.1 Flexible cables
7.2 Lead or aluminium sheathed cables
Figures
1. Schematic diagram of triple coaxial apparatus
2. Open cylindrical test container for cables
Part 2. British Government Services requirements
Introduction
8. Type approval and acceptance test procedure
8.1 Type approval
8.2 Services' users
8.3 Conditions of acceptance
8.4 Acceptance procedure. 100% tests
8.5 Sampling tests
8.6 Packing
Appendix
A. Group type approvals
Part 3. Cable data
Contents sheet } See separate
UR No.9 to UR No.115 } sheets

Describes coaxial and balanced twin cables for the transmission of radio-frequency power, and specifies requirements and tests for types of cable for service, professional and domestic use. The standard is divided into three parts. Part 1 specifies general requirements and test methods for the radio-frequency cables. Part 2 details the special type approval and sampling procedures and Part 3 consists of data sheets, setting out the electrical and mechanical requirements for each type of cable, with engineering information.