General Purpose Loose Tube Cable

Loose tube cables are generally recommended for outdoor applications or for premise uses where there may be significant shifts in ambient temperature.

One or more fibres are installed in a tube whose inside diameter is larger than the diameter of the fibre(s).

The construction allows the tube material to expand and contract due to temperature changes without damaging the fibre. The tubes are filled with a gel material which provides moisture protection.

Loose tube cables can be used in underground ducts and aerial lashings and are of an all-dielectric construction. Up to 12 optical fibres can be assembled in each tube and a total of 216 fibres in a cable.

Each tube is colour coded and the 250µm buffer of each fibre is colour coded (in multiple fibre tubes) for circuit identification.

The cable jacket provides excellent environmental protection against water and the effects of UV radiation from the sun. Series 710L cables can be supplied in composite form having a mixture of fibre types, such as singlemode and multimode.

In this case, fibres of a common type, or size, are grouped together in one or more common tubes.

	How to order cable:	Cable Series + Number of Fibres + Fibre Size e.g. 710l-04-50 is a 4 core 50/125µm duct cable
Specification Sheets for each cable are available from Tech Optics on request

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