Wednesday 25 June 2014

Enhancing An Effective Fibre Optic Cable Installation

By Sherry Gross


Fiber optics that has been improperly placed is susceptible to damage. In order to enhance handling and good performance, it is imperative that some procedures and guidelines be followed in the connection of these cables to prevent damage and limiting their usefulness. This article, therefore, takes you through the pertinent issues and facts during fibre optic cable installation.

The preliminary step in the connection process is to conduct a site survey. The purpose of the survey is particularly to familiarize with the place and to recognize the circumstances and locations that require special attention. During the survey, physical hazards, including high temperatures and operating machinery are noted to enhance planning for cable routing accordingly. The visit also enables you to consider and appreciate the building code regulations and have any questions addressed by the relevant authority within the jurisdiction, including the fire marshal and city building inspector.

The second step is to plan for the cable pulling. The plan incorporates the findings made in the survey stage and serves as a communication tool for the connection team on the considerations noted. It integrates the logistics of pulling equipment, splice locations and the locations of intermediate access points. Also, it is important to detail the particular duties and responsibilities of every individual member in the fixation team.

When undertaking the exercise, it is vital to follow the required procedure. Due to their delicate nature when exposed to moisture, the end of the cables must be insulated by an end cap at all times. The process of pulling should not be done when the left-off reel is unattended to since center-pulls, back-feeding and difficult pull techniques may be applied.

The connection should put in mind the minimum bend radius. It is crucial to consider the fact that every connector has its own minimum radius value. Therefore, be sure not to curve them more than the recommended bend value. The specified long range application radius must be adhered to during placement and after eliminating the pulling tension. As a general rule, wrapping and coiling is acceptable, but only when done within the constraints of the bend radius.

Another important factor to consider is the maximum recommended cable length. Despite the fact that fiber optics are much stronger compared to copper wires, it is imperative not to exceed the maximum tension pulling. The general strength ranking for most outdoor cables is 2700N.

Apart from the cable length, there is also the uppermost load value recommended in the long run. As such, the resultant tension after the placement should be less than this value. When installing vertically, be keen to clamp the wires at consistent intervals in order to avoid the resulting weight from exceeding the specified long-term load. Nevertheless, the intervals between clamps must be enough to prevent movement and support the weight.

Finally, it is necessary to document the process. A good record keeping is important as it ensures that the process is done correctly and simplifies future upgrading and troubleshooting. Record the special lot number labeled on the shopping spool. Both pre and post installation test information should be recorded in a logical and orderly manner.




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