Electric power utilities, raiway companies and telecommunication companies are increasingly insta ling aerral optical cables (OPGW, 0PPC and ADSS) for the ir-overhead lines. Standard fittings used for conventional conductors, earth wires and tradit onal aerial cables are not suitable for aerial optical cables. These fittings produce high radial forces that provide the necessary retaining force and therefore, due to the sensrtivrty of the integrated optical fibres, render then unsurtable for aerial optical cables. RIBE-0PTOFlT accessories have been especra ly designed to take into consrde ration the sensrtivity of aerial optical cables. Radiai loads are distrrbuted ove r large contact areas so that the opticaL fibres are not mechanicaly ove rloaded but at the same time tbey produce the ne cessary holding forces for the aerial optical cables. Our customers are electrica power supply companies, optical cable manufacturers, constructlon companies, railway companies and telecommunication companies. We support them right from the initial planning stage to the final production with our custorners application and after sales services. Our experience in the field of ele ctrrcal accessories goes back as far as ‘1902. We have be en manufacturing helical accessories since the beginning of the sixttes. With the introduction of aerial optical cables at the end of the seventies, we started to design and deve lop spiral accessories for the special requirements of aerial optical cables. We avoid damage to the aerial cables caused by windinduced vibratron by means of perfecte d damping conceptions. These guarantee a long service life of both aerial optical cables and damping components. The OPTOF|T-syste m has been extensively tested together with the appropriate aerral optical cables and has met the requirements of practical ope ration over decades. The existing variety and continuous furthe r design and deve lopme nt of ae rial optical cables de mand a continuous further development of accessories. The high investments and the de manded high reliability over the whole service life of aerial optical cables requires careful tests in our laboratortes. ln thrs way, a long service life and availability of the transmission system is guaranteed.

Submarine Flexible Joint

Submarine Flexible Joint

Benefit :

1.Time Saving

2.Cost Effective

3.90% Tensile Recover


Clients : PGN, Total, PLI

submarine hybrid fiber optic cables

Technical Specification

Submarine Hybrid Fiber Optic Cable

Cable characteristics




Outer Diameter



Weigth in Air



Breaking Strength



Nominal Transient Tensile Strength (NTTS)



Nominal Operating Tensile Strength (NOTS)



Nominal Permanent Tensile Strength (NPTS)



Minimum bending radius



Crush resistant value



Impact resistant value



Operating temperature range


-10 to +60

Optical characteristics of the offered optical fiber

The optical fiber is single mode type according to ITU-T Recommendation G.652 table D compliance.


Cable Parameter


1. Fiber Type Single Mode as per ITU-T G.652.D
2. Cable Anttenuation ≤0.21 dB/ km at 1550 nm

≤0.35 dB/ km at 1310 nm

3. Point Discountinuity [dB] ≤0.05 dB di 1310 nm and 1550 nm
4. Macrobend Loss (Maximum) 0.03 dB at 1310 nm and 1550 nm, with mandrel diameter 50 mm and 100 turns
5. Chromatic Dispersion (Maximum) 3.0 ps/[] at 1310 nm and

18.0 ps/[] at 1550nm

6. PMD Link Value (Maximum) 0.06 ps/

Cable make-up

The fibers are placed in the gel-filled loose tubes. The filling gel does not drip or freeze at -10°C up to 100°C. The loose tube is of stainless steel material to obtain the best undersea productproperties.

The loose tube is HDPE sheathed for the inner protection prior to the combined galvanized steel and copper conductor stranded armouring wires. Eight galvanized steel wires and four AWG 17 XLPE insulated copper conductors are applied as cable armouring.

Bitumen will fill the armour wire interstices to protect the wire against corrosion. UV resistant HDPE is finally extruded as outer cable protection.

Cable packing and delivery

The cable is supplied in one continuous length with returnable steel drum. The cable package is labeled and protected with heat-shrink end caps on both ends.

MPJC - Generation 1
MPJC - Generation 1
MPJC - Generation 2
MPJC - Generation 2
MPJC - Generation 3
MPJC - Generation 3

Technical Specification

Submarine Multi Purpose Joint Closure (MPJC)



Cable Type All Wire Armoured Cable

Maximum inner tube 13 mm

Maximum outer cable diameter 38 mm

Fiber Length Up to 96 fibers
Total length 2000 mm after installation
Maximum Joint closure diameter 110 mm after installation
Bending Radius :

·         Operational

·         Installation


2500 (mm)

2000 (mm)

Tensile Strength :

·         Breaking load

·         Operational tension


Minimum 80% of cable breaking load

Maximum 50% of cable breaking load

Operating water depth Maximum 300 (m)/ 30 bar
Typical repair time for a joint with maximum 24 fibers (2 Jointers) 8 hours
Additional time for each 12 fibers 0.5 hour
Register HAKI No. D002011053187

Features & Benefit

  • Easy and quick assembly without the need for special tools
  • Adaptable on most types of repeater less submarine fiber optic cables
  • Water depth down to 300 m
  • High tensile strength (Tested for 400 kN pulling tension) refer to cable design
  • Designed for standard splice protection sleeves
  • Low total cost for cable jointing
  • The splicing area is designed to accommodate up to 96 fibers (144 Optional)
  • Corrosion resistant material (made of marine quality stainless steel)
  • Extra protection with heath shrink and special glue

Joint Closure Assembly

joint closure assembly1
joint closure assembly2