APPLICATION
OPGW cables are used power transmission, communication, and lightning protection. lt could replace traditional static /shield /earth wires on overhead transmission lines and add benefit of containing optical fibers which can be used for telecommunications purposes. lt is suitable for high-voltage/ultra-high-voltage lines in intercity or cross-country projects that need both communication and grounding functions over long distances.
Lightning Resistant Central Stainless Steel Tube OPGW with Compressed Wires applies to heavy thunderstorm areas and the transmission line which requires small diameter and large fault current.
DESCRIPTION
The central stainless steel tube is surrounded by double layers of aluminium clad steel wires (ACS),the inner layer aluminium clad steel wires are compressed,the outer layer aluminium clad steel wires are all compressed or all round.
MAIN CHARACTERISTICS
Compressing round AS wires into sector AS wires during stranding.
Compared with round AS wires stranding, sector AS wires stranding can increase the cross section and fault current capacity while the cable diameter is the same.
Compared with round AS wires stranding, sector AS wires stranding can dramatically increase the diameter of outer wires to enhance the lightning performance.
STANDARD
ITU-TG.652 Characteristics of a single mode optical fiber.
ITU-TG.655 Characteristics of a non-zero dispersion -shifted single mode fibers optical.
EIAVTIA598 B Col code of fiber optic cables.
IEC 60794-4-10 Aerial optical cables along electrical power lines-family specification for OPGW.
IEC 60794-1-2 Optical fiber cables -part test procedures.
IEEE1138-2009 lEEE Standard for testing and performance for optical ground wire for use on electric utility power lines.
IEC61232 Aluminum -Clad steel wire for electrical purposes.
IEC60104 Aluminum magnesium silicon alloy wire for overhead line conductors.
IEC 61089 Round wire concentric lay overhead electrical stranded conductors.
CONSTRUCTION
1.Compressed wires
2.Optical fibers
3.Aluminium cad steel wires
Core ldentification:
Optical fiber core identification is distinguished by 12 Chromatography and color rings colors-12 Chromatography
