ADSS is an acronym for "All-Dielectric Self-Supporting" aerial optical cable; it refers to a fiber optic cable structure that contains absolutely no metallic materials. Currently, ADSS cable structures are classified into two main categories: the stranded type and the central tube type.
I. Prior to installation, thorough preparation of tools and equipment must be undertaken. The main aspects of this preparation are as follows:
1. Compile an inventory of tools and equipment based on the established construction plan and methodology.
2. Verify the actual tools and equipment available on-site against the compiled inventory; any shortages must be promptly addressed to ensure that the quantity of equipment meets the specific requirements of the construction project.
3. Clean and inspect all construction tools and equipment. All items must undergo testing in accordance with safety regulations to ensure their quality and compliance-with particular emphasis placed on verifying the insulation integrity of insulated pulling ropes.
4. All mechanical equipment-such as pulling machines, tensioners, braking cable stands, motorized winches, etc.-must be thoroughly inspected and undergo routine maintenance prior to the commencement of construction to ensure that all machinery remains in good working condition.
5. Line-stringing pulleys must be inspected, repaired, and maintained individually to ensure that all components are present and that the pulleys rotate freely and smoothly.
6. Communication devices must be checked individually to ensure that their power supply (battery charge) is sufficient.
7. Safety protection gear and equipment must be placed under the management of a designated individual; furthermore, such safety equipment must undergo periodic testing in accordance with applicable regulations throughout the duration of its use.
II. Each construction team must be equipped with the following basic construction tools and equipment:
1. Tensioner (or a conductor reel stand with a braking force of no less than 1.3 kN): 1 unit
2. Puller (3T capacity): 1 unit
3. Machine-braided nylon pulling ropes (Φ16 mm × 200 m/rope): 17 ropes
4. Anti-twist connectors (1T capacity): 17 units
5. Nylon-sheave stringing blocks (Φ400 mm): 20 units
6. Nylon-sheave stringing blocks (Φ600 mm): 6 units
7. Lever hoists (1.5T capacity): 4 units
8. Steel wire rope slings: [Quantity as required]
9. Silk ropes (Φ12 mm): 200 meters
10. Two-way radios (5 km range): 10 units
11. Wire rope grips (2-meter length): 4 sets
III. The stringing tensioner must be of the double-drum, large-bullwheel type. The pulling force of the puller must exceed 1 ton. If a dedicated tensioner is not available, a conductor reel stand equipped with a dual-braking system and a braking force of 1.3 kN or greater may be used (Official Account: Transmission & Distribution Lines).
IV. Cable stringing blocks must be free of rust and damage; the sheave diameter shall be Φ400 mm, and the groove width shall be 40 mm. Before use, the blocks must be thoroughly cleaned and lubricated with an appropriate amount of oil to ensure they remain in good working condition. The sheave diameters for the blocks mounted on the terminal towers at both ends of the pulling section shall be no less than 600 mm.
V. Regarding the clamps used for holding the optical cable during sag measurement: if specialized clamps are not available, standard tension fittings-specifically matched to the model of the optical cable being installed-may be used for temporary anchoring. However, clamps designed for gripping power conductors or ground wires must under no circumstances be used on ADSS optical cables.