CaTV | Service Entrance Facility

 

 

The Service entrance of a building starts from the outside plant to main service box of the building. These could be an aerial or underground installations and it needs to be done on conduits, pull boxes, cabinets to serve the building. This applies to all multi-dwelling units (MDU) that require structured cabling within the building, for safety consideration, and to meet the technical operating parameters set forth in Philippine Electronics Code.

The prohibition applies for the single-dwelling unit (SDU) installation whose cable connection requires centralized home wiring system, for safety considerations and compliance of technical operating parameters stated in Philippine Electronics Code Book III (Cable Television System).

Open cable facility is intended for single-dwelling unit and utilizes RG-6 tri-shield coaxial cable or drop fiber cable as entrance cable. It is directly connected to the building and attached along the wall using an eye-nut, J-hook, P-hook, staple wire or cable-clip.

Aerial Entrance
There are minimum clearance for vertical, horizontal, or both, and shall be observed prior to installation of cable aerially.

Importantly, do not cross neighboring property lines with the drop cable. This is called "aerial or cable trespass" and shall be avoided.

The aerial cable needs to be properly placed on the nearest pole of the building prior to attachment. The general rule is to keep the cable as short as possible to the point of entry of the building.

The house hook shall be screwed completely into solid material of a building, such as the eave, to give support to the cable.

Do not attach the cable to anything attached to the building, such as rain gutters, power conduits, or other obstructions.

When the building is more than 30 meters from the utility pole, a private pole inside the private property shall be provided by the building owner. The private pole shall be tall enough such that the 5.5 meters clearance from the ground to the mid span of the entrance cable is met.

Underground Entrance
Conduits installed underground shall be buried at least 600 mm below the ground.

No 90 degrees bend allowed in conduit. Standard radius of bend shall not be less than ten (10) times the inside diameter of the conduit.

For fiber-to-the-home (FTTH) installation, a fiber slack management should be attached outside of the building prior to distribution. A 3 meter fiber slack should be provided  for maintenance loop.

Service Entrance Cable
A minimum of 0.500 coaxial cable, solid aluminum, 75 Ohms shall be laid out from plant to the service entrance box of the building via aerial or underground.Service Entrance Pull Box
A service Entrance Cabinet has inside dimensions of 915 mm (H) x 610 mm (W) x 305 mm (D), with a size of AWG # 16.

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