§ Applications / 02DRG SYN-220
Hilly andRural Areas
The heaviest duty in the GR: 6F to 48F cable from 15.1 to 18.5 mm, up to 16.75 kN tensile strength and 285 kg/km. Type-I helix fittings are specified here because the load has to spread along the cable rather than concentrate at a clamp.
Cable GR
GR/OFC-03/03. JUN 2005
01 — The problem
02 — Annexure A figures
- Cable diameter
- 15.1 – 18.5 mm
- Tensile strength
- 11.5 – 16.75 kN (6W)
- Cable weight
- 195 – 285 kg/km
- Anchoring load value
- 10.9 – 15.9 kN
- Bracket tensile strength
- 23 – 33.5 kN
Specified for this route
4 fittingsSYN-T1-AGSDRG 11.3
Hover · parts separatingArmour Grip Suspension Set
→Ball-ended armour grip helix over protective helix, in a die-cast clipper.
15 rodsØ 4.25 mmBall-ended
SYN-T1-TRH-1000DRG 11.12
Hover · parts separatingTerminating Helix
→Aluminised steel dead-end grip with a prefabricated thimble loop.
5 rodsØ 2.2 mmSlips at 90% UTS
SYN-T1-SVD-1346DRG 11.13
Hover · parts separatingSpiral Vibration Damper
→Solid PVC spiral that detunes aeolian vibration on the span.
1346 mmØ 12 mmUV stabilised
SYN-T1-CT-102DRG 11.9
Hover · parts separatingClevis Thimble
→Die-cast aluminium thimble that seats the terminating helix loop.
W 92 mmR 46 / 30Alloy GDC
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