PBT Gel-Filled Tube Temperature Sensing Cable - APAC Cable

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PBT Gel-Filled Tube Temperature Sensing Cable

PBT Gel-Filled Tube Temperature Sensing Cable

Application scenarios

Suitable for temperature and pressure sensing. Structure: bare fiber + gel + PBT gel-filled tube + Kevlar + sheath.
Suitable for subway, tunnel, fire protection and other industries, avoiding disasters and safety accidents through temperature sensing.

Product features

All-dielectric structure design, combining excellent transmission performance with environmental adaptability.
Protected by a PBT tube, offering the advantages of light weight, small outer diameter, high strength and good water blocking.
Sealed process, eco-friendly and flame-retardant, providing water blocking and oil resistance.

Color identification

(1) Fiber colors (corresponding to 1-12 fibers)
Blue, Orange, Green, Brown, Gray, White, Red, Black, Yellow, Purple, Pink, Light Blue
(2) Cable colors (corresponding to 1-12)
Blue, Orange, Green, Brown, Gray, White, Red, Black, Yellow, Purple, Pink, Light Blue
Note: The outer sheath of the standard PBT gel-filled tube temperature sensing cable is blue by default.

Environmental certifications

Compliant with EU RoHS and REACH certification standards.

Structural dimensions

Item	Unit	Specification	One-side thickness (mm)
Fiber	mm	0.25±0.005	-
PBT tube	mm	2.00±0.10	0.45
Kevlar fibers	mm	2.20±0.10	-
Cable outer sheath	mm	4.00±0.20	0.90
Cable weight	Kg/km	25	-

Fiber performance

(1) Geometric characteristics

Test item	MM 50	MM 62.5
Mode field diameter (mm)	50±2.5	62.5±2.5
Cladding diameter (mm)	124.8±1.0	124.8±1.0
Cladding non-circularity (%)	≤1.0	≤1.0
Core-cladding concentricity error (mm)	≤1.5	≤1.5
Coating diameter (mm)	245±7	245±7
Outer coating-cladding concentricity error (mm)	≤12.0	≤12.0

(2) Optical characteristics

Test item	MM 50	MM 62.5
Zero-dispersion wavelength λ0 (nm)	1295-1320	1320-1365
Zero-dispersion slope S0 (ps/(nm².km))	≤0.101	≤0.097
Effective group index (850nm)	1.481	1.496
Effective group index (1300nm)	1.476	1.491

Cable performance

Item	Unit	Multimode specification
Core/modal diameter	mm	50.0±2.5 / 62.5±2.5
Cladding diameter	mm	125.0±1.0
Maximum attenuation	dB/km	3.5（@850nm）；1.5（@1300nm）
Operating temperature	℃	-20~+85
Cable outer diameter	mm	4.00±0.20
Permissible bending radius	mm	Dynamic 20D; static 10D
Tensile strength	N	Long-term 200; short-term 300
Crush strength	N	Long-term 800; short-term 1000

Marking information

Standard marking: Manufacturer info + Optic Fiber CABLE + MM 50/125 4.0mm + Fiber count + Month/Year + XXXXm
Custom marking content available per customer requirements.

Cable drum length

Standard drum lengths: 500m, 1000m, 2000m
10% over/under shipment allowed; settlement based on actual shipped length.

Product Brochure

PBT Gel-Filled Tube Temperature Sensing Cable

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