Cable is a vital link in every television distribution system. Installers must be assured that the cable they are using will be as good in the years to come as it is today which is why Webro, a leading force in cable production, never compromise on quality. Andy Watts from Webro takes a closer look at the products on offer.

Webro manufacture state of the art "physical foam" cable that is benchmarked right across the range. If you are installing large television distribution systems for locations such as Hotels or Conference centres then Webro have the complete range of cables required for most systems.

Many considerations need to be taken into account when choosing the right cable for a system. Specific products should be used in particular situations and they must always meet any local authority or architectural requirements. For internal installations local authorities and Architects are becoming more aware of LSF (Low Smoke & Fume) and LSNH (Low Smoke No Halogen) and are specifying these types of cables more and more.

LSNH is a very high level of sheathing compound and is generally used where there maybe a large amount of people in one place at the same time. This type of sheath gives off little smoke and non toxic fumes and is able to withstand fire for longer than PVC or PE. It is generally used in shopping centres, airports, underground and train stations and hospitals

PVC (Poly Vinyl Chloride) can be used both internally and externally, as this sheathing compound is the standard covering on drop cables WF100 and H109F. PE (Polyethylene) is the standard sheathing compound on WF125 and WF165. This type of sheath should not be used internally.

HDPE (High Density Polyethylene) gives greater protection to the cable and therefore can be used underground. It’s extremely robust and gives the cable a firm feel.

Digital ready Physical Foam cables are ideal for use underground as they are longitudinally watertight and are less susceptible to crushing or kinking because of the solid foam dielectric. They have a stable attenuation of up to 3GHz and their flexibility means they are easier to install.

Physical Foam Dialectric cable is manufactured using the most advanced production techniques available today. During the extrusion process, Polythylene is injected with inert Nitrogen gas. This results in a physically foamed dielectric that meets the most stringent international quality standards.

This physically foamed dielectric ensures that the cable’s reliability and high performance is guaranteed for many years. Webro Physical foam cable has a twenty-five year written warranty.

Another important advantage of the "physical foam" cable is that the outside diameter stays the same regardless of sheathing material. Therefore one type of crimp "F" connector can be used on each size of cable, even the underground "UG" version. This is due to the dielectric giving more support to the cable and not requiring a thicker HDPE or "UG" sheath to give that support.

The WF range covers all possibilities from the large trunk cables WF340 and WF233 to the distribution cables WF165 and WF125 (available in four and five core versions) then drop cables WF100 or if preferred, market leader H109F, semi air spaced.