Installation Of Backbone Fibre Optic Cable | Inspection Points

This article is about Building Premises Distribution System, Installation Of Backbone Fibre Optic Cable of Industrial Telecommunication, backbone cabling diagram, backbone cabling system, “fiber backbone diagram, fibre backbone cabling, fibre optic backbone network, horizontal cabling, vertical cabling.

Installation Of Backbone Fibre Optic Cable | Industrial Telecommunication

Installation Of Backbone Fibre Optic Cable

1. Verify and ensure the cable sheath is marked with number of fibres (cable size), cable manufacturer, type of fibre (single mode or multi mode) and dispersion specification.
2. Verify that the On-reel acceptance tests has been performed on the cable to confirm the manufacturer’s tests before the placing operation begins.
3. Verify and insure that all fibre optic cables installed as wiring within buildings shall be air core, Optical Fibre Non conductive Plenum (OFNP) or Optical Fibre Non conductive Riser (OFNR) type with or without non metallic moisture barrier.
4. Ensure that conduit that contains fibre optical cable shall be provided with subduct.
5. Verify that all cables are visually inspected before, during and after installation for physical damage to the cable in accordance with KAUST inspection procedures. All damaged sections shall be repaired or replaced as directed by the KAUST representative.
6. Verify and ensure the following minimum bending radius limitations when handling optical fibre cables:
   1. Under tension–Twenty times the cable diameter.
   2. Not under tension–Ten times the cable diameter.”
7. Verify if the transmission cable is 62.5 Micron Fibre, then the Maximum length from the closet to the main cross-connect is 2,000 m (6,560 ft).
8. Verify if the transmission cable is Single-Mode Fibre, then the Maximum length from the closet to the main cross-connect is 3,000 m (8,200 ft).
9. Ensure that backbone FO cables are not being spliced in pathways (raceways, conduits, trays, trunking) in ceilings and under raised floors.

Fibre Optic Cable Termination and Identification

Before beginning the splicing operation verify that:
1. The cable is secure in an optical fibre splice organizer.
2. All metallic members of the cable is bonded and grounded.
3. To prevent fibre damage, handle buffer tubes and fibres carefully, when bending and placing in the organizer.

When splicing the fibres, verify the followings:
-The splicer is following the manufacturer’s instruction for the splicing equipment being used.
-The splicer is using an approved buffer stripper,
– The fibre coating stripper used shall be approved for the.

ACCEPTANCE CRITERIA

1. Verify that a non metallic splice organizers is used for organizing fibres at splice points. Installation shall be in accordance with the manufacturer’s instructions. See SAES-T-633, Communications Splice Closures.
2. Verify that dispose of bare fibre is being properly handled by using the sticky side of a piece of tape to pick up and discard any loose ends in a container. Scrap pieces of fibre shall be cleaned up from the work site and properly discarded before leaving a work site.
3. To minimize damage to the bare fibre, avoid excessive wiping (more than five times). Before cleaving, wipe the fibre twice with a new tissue dampened with 90% grade alcohol to remove any coating debris from the stripped fibre.
4. Verify that only approved cleaving tool is being used to cleave the fibre. Hand scribes should not be used for cleaving and if required, wipe the fibre after cleaving to remove dirt or grease. Avoid excessive wiping.
5. Verify and ensure that the fibre optic cable is properly identified using applicable KAUST fibre cable designation symbols as specified in SAES-T-018.

Standards Codes and References for Backbone Fibre Optic Cable

1. SAES-T-624,Telecommunication Outside Plant- Fibre Optics.
2. SAES-T-625,Inter and Intra Building- Fibre Optics.
3. SAES-T-916, Telecommunications Building Cable Systems.

Installation Of Backbone Connecting Hardware | Telecommunication Design