The document provides tips for choosing high quality ADSS cable fittings. It discusses factors that determine the quality of various cable fitting components, including immobility clamps, suspension clamps, tension clamps, lead down clamps, fiber optic splice closures, cable storage racks, and spiral vibration dampers. Key factors are the thickness of materials like flat steel and galvanizing coatings, as well as the types of materials used, to ensure strength, corrosion resistance and durability.

1. F i b e r O p t i c S o l u t i o n Provider 1 /4
www.suntelecom.cn • +86-21-60138638 • ics@suntelecom.cn
Tips for ADSS Cable Fittings
There is a wide range of quality of products in the cable fittings industry, here are some tips
for Sun Telecom's ADSS cable fittings with other manufacturers' in order to give an idea about
what to choose when purchasing.
1. Immobility Clamp
The quality of immobility clamp varies from the thickness of flat steel (the basic material for
immobility clamp) and the thickness of galvanizing coating. The flat steel we use is 4*40 or 5*50 as
customer request. Our galvanizing coating thickness is about 100um, which is better than the
standard requirement (85um). The thickness of the galvanizing coating will affect the RTS value,
stability, and anti-corrosion. Thin and uneven coating will result in rust. Some manufacturers may
use thin flat steel and thin galvanizing coating to reduce the cost.

2. F i b e r O p t i c S o l u t i o n Provider 2 /4
www.suntelecom.cn • +86-21-60138638 • ics@suntelecom.cn
2. Suspension Clamp
The quality of suspension clamp varies from the aluminum material it uses. The shell of suspension
clamp is aluminum, and there are different grades for aluminum. The aluminum we use is good
quality and suspension clamps we provide comply with industry standard.
3. Tension Clamp
The connection part of the tension clamp can be divided into two types according to technology:
delicate casting and spheroida graphite iron casting. We usedelicate casting, so the connection
part is smooth without burrs. There will be burrs if using spheroida graphite iron casting. As below
picture shows the difference.
The preformed armor rods can be divided into two types according to material: hot dip galvanizing
and aluminum clad steel wire. We use aluminum clad steel wire, which has better tension
and anti-corrosion performance than hot dip galvanizing steel wire.

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www.suntelecom.cn • +86-21-60138638 • ics@suntelecom.cn
4. Lead Down Clamp
The quality of tower lead down clamp varies from the thickness of galvanizing coating. Our
galvanizing coating thickness is about 100um, which is better than the standard requirement
(85um). As for pole lead down clamp, we use stainless steel 304 in good quality.
5. Fiber Optic Splice Closure
The quality of fiber optic splice closure varies from the quality of S type connection part, steel
tape, cap and the splice tray. Some manufacturers use hose clamp steel strip to replace steel tape,
as time goes by, the place near the hole on the hose clamp steel strip will break easily. Some use
splice tray made from recycled material. It's fragile and break easily. And some use light and small
(non-standard) S type connection part.
6. Cable Storage Rack

4. F i b e r O p t i c S o l u t i o n Provider 4 /4
www.suntelecom.cn • +86-21-60138638 • ics@suntelecom.cn
The quality of cable storage rack varies from the thickness of flat steel, the thickness of
galvanizing coating, and the material of steel tape. The flat steel we use is 5*50. Our galvanizing
coating thickness is about 100um and the steel tape we use is not hose clamp steel strip.
7. Spiral Vibration Damper
The quality of spiral vibration damper varies from the PVC raw material. The raw material we use
is new, but some other manufacturers may use recycle PVC material.