Fibre hybrid cable – Type 3780K
Fibre hybrid cable – Type 3780K
Construction characteristics
| Fibre optic element | Jelly filled steel tube (1.9 mm OD) with 8 off single mode fibre SM (9/125) type Strong bend-EX single mode fibre ITU-T G657.B2 Black polyethylene jacket to a nominal OD of 3.5 mm SM fibre colour white, yellow, green, blue, red, orange, brown, grey |
| Conductor | 1.0 mm2 (18 AWG) stranded tinned copper conductor with double layers of tecnopolymer compound insulation. Nominal OD 2.23 mm (7 each) Colur red, orange, yellow, green, blue, violet, brown |
| Wrap | Mylar tape |
| Inner jacket | Polyurethane 1.3 mm wall thickness. Colour red. Nominal OD 10.5 ±0.4 mm |
| Strain element | High strength textile braid |
| Outer jacket | Polyurethane 1.5 mm wall thickness. Colur red glossy |
| European directives | 2002/95/CE (RoHS) and 2002/96/CE (WEEE) |
| Haloen free | Acc. to EN 50267-2-1 – IEC 60754-1 |
Mechanical characteristics
| Diameter | 16.0 mm ±0.40 mm |
| Weight in air | 280 kg/km |
| Weight in seawater | 80 kg/km |
| Min. bending radius, static | 160 mm |
| Min. bending radius, dynamic | 240 mm |
| Safe working load | 10 kN |
| Min. breaking strength | 50 kN |
| Depth rating | 6,000 m |
| Operating temperature range | -20°C – +80°C |
Electrical and physical characteristics
| Operating voltage | 3,000 V | |
| Test voltage | 6 kVA.c x 1 minute | |
| Electrical resistance | 20̊C ≤ 20.4 Ω/km | |
| Insulation resistance | 20̊C ≥ 1,000 MΩ x km | |
| Fibre attenuation (SM – dB/km) |
≤ 0.38 dB/km at 1,310 nm ≤ 0.25 dB/km at 1,550 nm Mandrel radius 15 mm at 1,550 nm 10 turns Mandrel radius 15 mm at 1,626 nm 10 turns Mandrel radius 10 mm at 1,550 nm 1 turn Mandrel radius 10 mm at 1,625 nm 1 turn Mandrel radius 7.5 mm at 1,550 nm 1 turn Mandrel radius 7.5 mm at 1,625 nm 1 turn |
≤ 0.03 dB ≤ 0.10 dB ≤ 0.10 dB ≤ 0.20 dB ≤ 0.50 dB ≤ 1.00 dB |
| Proof test | ≥ 100 kpsi |
