PICKING THE RIGHT ONE!

Designing custom cables begins with a thorough application analysis. By asking the right questions, the cablemaker can develop a complete profile of cable properties based on the mission and operating conditions. Let's take a look at a variety of considerations that should be examined.

CATEGORY

REQUIREMENT

CABLE PROPERTY

electrical characteristic

high currents

large conductors

 

high power

high-quality conductors

 

 

heat-resistant primary insulation

 

low current

high-resistance insulation

 

low power

effective shielding

 

 

"low noise" provisions

 

high voltages

high voltage withstand

 

 

high test voltages

 

 

Low corona/ corona-free

impedance characteristics

high frequencies

defined transmission line

 

 

low loss dielectric

safety requirements

approvals

UL, CSA, VDE, CE, etc.

materials

flammability

flame tests

 

 

non-combustible

 

 

self-extinguishing

 

thermal load

non-flammable material

 

toxicity and corrosiveness of combustion products

halogen-free materials

service life

flexure and torsion endurance, abrasion resistance

combination of design and materials selection

 

environmental and climatic aspects

combination of design and materials selection

installation

flexibility

finely stranded conductors, soft plastics

handling characteristics

size

miniaturization

termination

compatibility with specialized connectors

specialized (hybrid) configurations