Dielectric predictable break load aerial drop cable

Patent metadata

Field	Value
Publication number	US-11619797-B2
Application number	US-202117485468-A
Country	US
Kind code	B2
Filing date	Sep 26, 2021
Priority date	Mar 31, 2021
Publication date	Apr 4, 2023
Grant date	Apr 4, 2023

Abstract

The present invention discloses a dielectric predictable break load aerial drop cable comprising one or more optical transmission elements, a first layer surrounding the one or more optical transmission elements, a plurality of strength yarns surrounding the first layer, an outer sheath surrounding the plurality of strength yarns. In particular, the outer sheath has a plurality of strength members embedded in an equilateral position. Moreover, the dielectric predictable break load aerial drop cable breaks at a predefined break load with a neutral bending performance.

First claim

What is claimed is:

1. A dielectric predictable break load aerial drop cable comprising:
one or more optical transmission elements;
a first layer surrounding the one or more optical transmission element;
a plurality of strength yarns surrounding the first layer;
an outer sheath surrounding the plurality of strength yarns, and the outer sheath has a plurality of strength members embedded in an equilateral position, whereby enabling breaking of the dielectric predictable break load aerial drop cable at a predefined break load with a neutral bending performance,
wherein the dielectric predictable break load aerial drop cable has a sag less than 2% at a span length of 50-70 meters.

2. The dielectric predictable break load aerial drop cable as claimed in claim 1 , wherein the plurality of strength members are arranged in radially equidistant manner.

3. The dielectric predictable break load aerial drop cable as claimed in claim 1 , wherein the plurality of strength members are arranged in circumferentially equidistant manner.

4. The dielectric predictable break load aerial drop cable as claimed in claim 1 , wherein the plurality of strength members and the plurality of strength yarns are held by an epoxy.

5. The dielectric predictable break load aerial drop cable as claimed in claim 1 , wherein the plurality of strength members are crushed to crimp the plurality of strength members with a connector.

6. The dielectric predictable break load aerial drop cable as claimed in claim 1 , wherein the dielectric predictable break load aerial drop cable has a crush resistance of 1000 N/100 mm.

7. The dielectric predictable break load aerial drop cable as claimed in claim 1 , wherein the dielectric predictable break load aerial drop cable breaks at a predefined break load between 1300 and 2100 N.

8. The dielectric predictable break load aerial drop cable as claimed in claim 1 , wherein the dielectric predictable break load aerial drop cable has a sag of 1.8 m, when the dielectric predictable break load aerial drop cable is loaded with 35-50 kg load along a length at a span of 50-70 m.

9. The dielectric predictable break load aerial drop cable as claimed in claim 1 , wherein the dielectric predictable break load aerial drop cable has a strain less than 0.8 in the one or more optical transmission elements.

10. The dielectric predictable break load aerial drop cable as claimed in claim 1 , wherein the plurality of strength members are coated with EAA (Ethylene Acrylic Acid) and/or EVA (Ethylene-Vinyl Acetate).

11. A dielectric predictable break load aerial drop cable comprising:
one or more optical transmission elements;
a first layer surrounding the one or more optical transmission elements;
a plurality of strength yarns surrounding the first layer;
an outer sheath surrounding the plurality of strength yarns, wherein a plurality of strength members is embedded in the outer sheath, wherein each of the plurality of strength members has the plurality of strength yarns held together by epoxy, and
wherein the plurality of strength members is crushed to crimp the plurality of strength members with a connector, while the dielectric predictable break load aerial drop cable has a crush resistance of 1000 N/100 mm (+/−10%),
wherein the dielectric predictable break load aerial drop cable has a sag less than 2% at a span length of 50-70 meters.

12. The dielectric predictable break load aerial drop cable as claimed in claim 11 , wherein the plurality of strength members is embedded in the outer sheath in an equilateral position.

13. The dielectric predictable break load aerial drop cable as claimed in claim 12 , wherein the plurality of strength members arranged in a radially equidistant manner.

14. The dielectric predictable break load aerial drop cable as claimed in claim 12 , wherein the plurality of strength members arranged in a circumferentially equidistant manner enabling a neutral bending performance.

15. The dielectric predictable break load aerial drop cable as claimed in claim 11 , wherein the dielectric predictable break load aerial drop cable breaks at a predefined break load between 1300 and 2100 N.

16. The dielectric predictable break load aerial drop cable as claimed in claim 11 , wherein the sag is 1.8 m when the dielectric predictable break load aerial drop cable is loaded with 35-50 kg load along a length at a span of 50-70 m.

17. The dielectric predictable break load aerial drop cable as claimed in claim 11 , wherein the dielectric predictable break load aerial drop cable has a strain less than 0.8 in the one or more optical transmission elements, when the dielectric predictable break load aerial drop cable is loaded with 35-50 kg load along the length at a span of 50-70 m.

18. The dielectric predictable break load aerial drop cable as claimed in claim 11 , wherein the plurality of strength members are coated with EAA (Ethylene Acrylic Acid) and/or EVA (Ethylene-Vinyl Acetate).

Assignees

• Sterlite Tech Ltd

Inventors

• Some Sashanka
• Wagh Dnyaneshwar

Classifications

• G02B6/4431

  with provision in the protective covering, e.g. weak line, for gaining access to one or more fibres, e.g. for branching or tapping (break-out terminations G02B6/4471) · CPC title

• G02B6/4422 Primary

  of the overhead type · CPC title

• G02B6/4432

  with fibre reinforcements · CPC title

• G02B6/4495 Primary

  Physics · mapped topic