Industrial Cable Manufacturer

Description of optical fiber cable for nuclear power plant

The optical fiber cable for nuclear power plants features an all-dielectric structure. This optical cable can be used in electromagnetic environment to satisfy requirements for the transmission of high speed data, and is suitable for installation in outdoor underground pipelines (with slope and drainage), indoor drive pipes and crane span structures.

Application

The all-dielectric structure protects the optical fiber from electromagnetic interference and being struck by lightning.

Parameter

Optical cable	Unit	Technical parameter
Diameter of core or mode field diameter	μm	9.2±0.4@1310nm; 10.1±@1550nm
Cladding diameter	μm	125±1μm
Shape	circle
Coaxiality of cable core and cladding layer	μm	≤0.6
Out-of-roundness of cable core	%	≤0.6
Out-of-roundness of sheath	%	≤0.6
Attenuation coefficient @1310nm	dB/km	≤0.4
Attenuation coefficient @1550nm	dB/km	≤0.35
Attenuation coefficient after the tests @1310nm	dB/km	≤2
Attenuation coefficient after the tests @1550nm	dB/km	≤2
Maximum allowed tensile force(installation)	N	3000
Maximum allowed tensile force(operation)	N	1500

Features
The outdoor stranded loose tube cable uses gel to fill itself in order to facilitate the tensile strength, moisture resistance and side pressure resistance. We use a nonmetal Fiber Reinforce Plastic (FRP) round bar at the center to strengthen the optical cable. The glass fiber yarn will protect the cable core and improve the flame retardant performance. The nonmetal strength member uses aramid yarn to aramid and protect the optical cable. The product will satisfy the requirements for flame resistance, heat resistance, moisture resistance, waterproof and flame retardant performance. The all-dielectric structure protects the optical fiber from electromagnetic interference and being struck by lightning.