The split matters because the two clamp families carry different loads. A suspension assembly holds the cable’s weight; a tension set wrestles the full longitudinal pull of the span. Mixing up those two loads the wrong hardware against the wrong force, so the difference is worth pinning down before any kit is quoted.<\/p>\n
Kits for ADSS differ from OPGW kits in cable surface and electrical exposure, even though the family logic is shared. The same six-family view applies to any ADSS OPGW fitting<\/a> package, with minor material swaps.<\/p>\n A preformed suspension set has four parts: an inner rod layer, an outer rod layer, elastomer inserts, and a housing that hangs from the linkage. The rods wrap helically around the cable, so grip pressure spreads over a long contact area instead of one bolt point. Published ratings put the holding force at only 10-20% of the cable’s rated tensile strength, which is intentional. The set is not supposed to clamp hard; it cradles.<\/p>\n Manufacturers rate preformed suspension sets for line angles up to about 30 degrees. The smooth, rod-wrapped profile also keeps the electric field around the cable even, which lowers corona discharge on high-voltage routes.<\/p>\n Where spans are short and loads are light, a formed J-hook body in aluminum alloy with a UV-resistant elastomer insert does the same job with fewer parts. The cable rests in the insert, the insert allows slight sliding under temperature and wind movement, and the vertical load passes into the pole. Non-metallic contact surfaces keep the dielectric sheath isolated from the structure.<\/p>\n For short urban runs under 100 m, a simple tangent clamp \u2014 shell, rubber insert, bolt hardware \u2014 is the lightest straight-line support of the family. One production example of this hardware class is the ADSS suspension clamp<\/a>, which shows how housing, insert and linkage arrive as a matched assembly.<\/p>\n At a dead end, the fitting must hold the entire longitudinal tension of the span, not just the weight of the cable. Where a suspension set cradles, a tension set bites, the way you would wrap a rope around a post before tying it off. When the line turns hard at a river crossing, the same set also carries the resultant pull of that turn.<\/p>\n A preformed tension set stacks two helical rod layers over the cable and finishes in a pulling ring or loop. Inner rods match the cable diameter; outer rods add grip length and stiffness. Manufacturer data credits these sets with holding at least 95% of the cable’s rated tensile strength, without local stress concentrations. That is why they anchor terminations, tensioning structures and corner poles.<\/p>\n Single-layer tension clamps compress the concept into one wrapped layer plus a pulling ring and U-shaped ring, rated for spans of roughly 50-200 m. Their preformed wires come in aluminum-clad steel or aluminum alloy, matched to the cable jacket and the span exposure.<\/p>\n Armor rods are helical rods of aluminum alloy or aluminum-clad steel wrapped directly over the cable at support points. They are the first thing to touch the sheath, and the first thing to wear out, which is exactly their job.<\/p>\n Three functions justify the extra line item:<\/p>\n In our experience, skipping armor rods to save one part number is the fastest route to a sheath-damage claim two winters later. Armor rods belong to the broader formed wire<\/a> family that also covers guy grips and dead-end grips for conductor and earth-wire work.<\/p>\n Smooth laminar wind at roughly 1-7 m\/s makes an ADSS cable shed vortices and oscillate in the 3-150 Hz band. Left unchecked, this aeolian vibration is a leading cause of cable fatigue failure. Dampers exist to take that energy out of the cable before it concentrates at hardware edges.<\/p>\n A spiral vibration damper is a helix of weather-resistant, non-corrosive plastic whose small gripping section holds the cable without crushing it. It damps broadly across frequencies but shallowly, and it forgives placement error. Placement rules still apply: about one hand-width (roughly 5 in) from the ends of armor rods or other hardware, and up to three units nested in tandem. Model ranges cover cable diameters from about 6.35 mm to 31.75 mm, color-coded per range, as documented on AFL’s spiral vibration damper for ADSS cable<\/a> page.<\/p>\n A Stockbridge damper hangs two masses on a short flexible messenger cable clamped at its middle. It damps deeply but only near its tuned frequency, so the unit must sit close to a vibration antinode rather than a node. TTI Fiber’s ADSS vibration damper spacing<\/a> analysis is the clearest engineering write-up of that positioning problem.<\/p>\n Working damper counts by span: below roughly 200 m, usually none, because cable self-damping is enough; 200-400 m, two dampers, one per end; 400-700 m, four; beyond about 700 m, six or more plus a dedicated vibration study.<\/p><\/blockquote>\n![\"ADSS](\"https:\/\/www.raxpower.com\/wp-content\/uploads\/adss-types-stock-suspension-pole.webp\")
Suspension Assemblies: Preformed Rods That Cradle the Cable<\/h2>\n
What the set contains<\/h3>\n
The J-hook and tangent-style alternatives<\/h3>\n
![\"J-hook](\"https:\/\/www.raxpower.com\/wp-content\/uploads\/J-Hook-Type-Suspension-Clamp-For-ADSS-1.jpg\")
Tension and Dead-End Sets Built for Full Span Load<\/h2>\n
Short-span and single-layer variants<\/h3>\n
![\"Coated](\"https:\/\/www.raxpower.com\/wp-content\/uploads\/Coated-Dead-End.jpg\")
Armor Rods: The Sacrificial Layer Under Every Clamp<\/h2>\n
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Vibration Dampers: Spiral and Stockbridge Designs Compared<\/h2>\n
Spiral dampers<\/h3>\n
Stockbridge dampers<\/h3>\n
![\"ADSS](\"https:\/\/www.raxpower.com\/wp-content\/uploads\/J-Hook-Type-Suspension-Clamp-For-ADSS-5.jpg\")
<\/div>\n<\/div>\n![\"Attachment](\"https:\/\/www.raxpower.com\/wp-content\/uploads\/adss-types-stock-pole-attachments.webp\")