| Type-specific
tests and measurements during then development process |
Test
content |
|
| Attenuation
with OTDR |
Fibre
breakage, attenuation cracks and attenuation linearity |
|
| Bandwidth |
Length-dependent
transmission capacity |
|
| Crush
resitance |
Attenuation
change upon transverse pressure |
|
| Fatigue
strength |
Damage
to cable sheath, fibre cracking |
|
| Torsion |
attenuation
change for torsion |
|
| Temperature
behaviour |
Attenuation
change at different temperature ranges |
|
| Flame
test |
Fire
behaviour, fire propagation |
|
| Tensile
performance |
Attenuation
change, fibre and sheath elongation |
|
| Abrasion
resistance |
Resistance
of printing and cable sheath |
|
| Glass-
and coating geometry |
Diameter,
concentricity, ovalness |
|
| Spectral
parameters |
Attenuation,
limiting wavelength, mode field diameter |
|
| Lying
behaviour |
Cable
lying behaviour before and after testing in the climate chamber |
|
| Stripping
resistance |
Settling
of the individual cable materials |
|
| Repeate
bending |
Damage
to the cable sheat, fibre cracks |
|
| Impact |
Damage
to the cable sheath |
|
| Cable
bending |
Fibre
breakage, damage to the individual cable materials |
|
| PMD |
Dispersion
component of polarisation mode |
|
| Cross
breaking strength |
Fibre
breakage, damage o the various cable material |
|
