Table of Contents
How do you straighten fiber optic strands?
One is to insert the fiber into a rod – such as a plastic coffee stirrer, similar to those found in coffee shops. This works very well and I have used this often. A great alternative is to straighten the fibers to be used using the hot water method described above.
How OPGW is used in the power system?
OPGW is primarily used by the electric utility industry, placed in the secure topmost position of the transmission line where it “shields” the all-important conductors from lightning while providing a telecommunications path for internal as well as third party communications.
What is ADSS fiber?
AFL-ADSS® (All-Dielectric Self-Supporting) fiber optic cable is a non-metallic cable which supports its own weight without the use of lashing wires or messenger cables.
What is Shield angle?
The Shielding Angle is defined as the angle between an imaginary vertical line extending downward from the overhead ground wire and an imaginary line connecting the ground wire and phase conductor, as shown in figure below.
What is approach cable?
Approach cable installation procedure Page 1 APPROACH CABLE INSTALLATION AND HANDLING DOCUMENT Introduction:- A fiber optic approach cable is defined as the Armoured Underground fiber optic cable required to connect Overhead Fiber Optic Cable (OPGW) between the final in line splice enclosure on the gantry/ tower …
What is back flashover?
Back flashover occurs when the lightning strikes on a shield wire or tower, where the resultant voltage across the insulator is large enough to cause a flashover from the tower to the line conductors.
What is lightning earth wire?
The first two carry electric current from the power station and the third is earthed by connecting it to the buried metal plate. Metallic bodies of the electric appliances such as electric iron, refrigerator, TV are connected to the earth wire.
What is SkyWrap?
SkyWrap provides a retro-fit solution for installing a fiber optic cable on overhead power lines. The cable is small and imposes minimal additional load on the overhead line conductors, poles and towers.
Why do we ground fiber?
Proper grounding and bonding is required for the safe and effective dissipation of unwanted electrical current, and it promotes personal and site safety. Typically, fiber-optic systems do not carry electrical power, but the metallic components of a conductive cable are capable of transmitting current.
Can optical fiber bend 90 degree?
“(PhysOrg.com) — When an optical fiber is bent by 90° or more, the light begins to leak away, posing a problem for fiber optics communications.
Is it OK to bend fiber optic cable?
Bending of a fiber optic cable can damage the cable if the radius of the bend is too small. The normal recommendation for fiber optic cable bend radius is the minimum bend radius under tension during pulling is 20 times the diameter of the cable.
What is ADSS used for?
All Dielectric Self Supporting cable or more commonly referred to as ADSS cable is a type of fiber optic cable that is used in aerial applications. This type of cable does not need a messenger to support it, so it can be installed in a single pass.