![]() A survey peg for a strut position must show the approximate spread of the strut.Tops of pegs that show the positions of angle poles must be marked with blue lumber crayon crosses. Numbering (or other details) and marking of the wooden pegs shall be done as agreed upon by both the client and contractor. Wooden pegs shall be used to mark the position of every pole, stay or strut. Location of the poles to be erected along roads shall be in accordance with the way leave drawings and conditions stipulated by the authorities concerned. The survey advances, the rear rods used for lining up - will be withdrawn and survey pegs driven into the ground in the exact position previously occupied by the survey rod. A spirit level must be used to verify that there is no lean to the rods.Rods must be planted in line at selected pole positions so that, when erected, the poles will be in a straight line. Poles that are loaded onto a pole carrier must be secured to ensure that the cargo does not move while it is in transit.Įnsure that the removal of any one pole will not cause shifting or rolling of any of the remaining poles. Poles must never exceed the 0.5m vehicle overhang and must have a red flag secured on the overhanging end. A safety harness must be worn and secured to the pole once the working position is reached.Ĭlimb intermediate poles if the span they support is being placed under tension.A worker must be correctly positioned on the ladder.Must be properly secured (lashed and held). ![]() Must be positioned correctly (1-4 ratio). This effectively means that 2-hands and 1-foot or 2-feet and 1-hand must be on the ladder at all times. Hands free of tools or materials when climbing or descending a pole or ladder.Ĭlimbing up or down ladders must always face the ladder and maintain a 3-point contact. Pole Handling Personal Protection Equipment (PPE) All workers should have proper training and personal protective equipment before being allowed to work on aerial installations. Jacket colors other than black are rarely used for aerial installations and then only for enhancing identification.Īerial cable installation can be hazardous as personnel may working at considerable height above the ground on ladders, bucket trucks or even climbing poles and near electrical transmission wires. ![]() The performance of raw PE can degrade rapidly through exposure to sunlight but the addition of carbon black to the cable jacket absorbs the UV light to protect the plastic jacket of the cable. Polyethylene (PE) is the material of choice for use as an aerial OSP cable jacket. Splice locations should be chosen with the need for parking a splice truck, van or trainer nearby. Prior to installation, the location of splice points and storage of slack cables must be determined and noted in the design. Sometimes lightweight fiber cable may be lashed to previously installed cables such as older copper phone cables or CATV hardline coax, but proper permissions must be obtained. This may take considerable time which must be factored in the planning of the project. If poles exist already, it is required to have proper permits for adding communications cables and the poles must be “made ready” by the owner of the poles are authorized parties. Permits from local authorities must be obtained and coordination with local agencies such as traffic and police must be properly planned. Routes must be surveyed, ground conditions tested, all components procured and received. This of course, allows for pole sharing, which of course, reduces installation costs and speeds-up deployment.īefore beginning aerial installations, the design of the cable plant must be properly done and checked. Self Supporting (ADSS) cables can be erected in close proximity to power transmission lines. Planned route may be undulating, rocky or both, making digging less appealing. However, there are a number of reasons for choosing an aerial solution, such as:įibers are typically much faster and cheaper to deploy than buried networks. But underground installations can be vulnerable to flooding damage. Unlike aerial installations, they are less affected by most adverse weather like high winds or freezing rain. Aerial installation is generally much less costly than underground construction also.įiber in a duct solutions have a major aesthetic advantage once installed, they are invisible, leaving no mark on the landscape. The FOA Reference For Fiber Optics -Outside Plant Construction - Aerial Cable InstallationĬompleting Outside Cable Plant Installation.ĭeploying fiber above ground on poles or towers removes the need for underground digging and is particularly useful when the ground is uneven, rocky or both.
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