What is OPGW in transmission line?

What is OPGW in transmission line?

Optical Ground Wire is a dual functioning cable, meaning it serves two purposes. It is designed to replace traditional static / shield / earth wires on overhead transmission lines with the added benefit of containing optical fibers which can be used for telecommunications purposes. Cookies Use on AFL Website.

What Fibre is used in OPGW?

Typically OPGW cables contain single-mode optical fibers with low transmission loss, allowing long distance transmission at high speeds. The outer appearance of OPGW is similar to aluminium-conductor steel-reinforced cable (ACSR) usually used for shield wires.

What is the function of OPGW?

OPGW or known as Optical Ground Wire is a type of cable or wire that is used in transmission lines construction. It is also known as optical fiber composite overhead ground wire. It can serve as a grounding wire, shielding wire, and at the same time a cable used for communication purposes.

What is the difference between OPGW and ADSS cable?

ADSS is an alternative to OPGW and OPAC with lower installation cost. The cables are designed to be strong enough to allow lengths of up to 700 metres to be installed between support towers. The cable is jacketed to prevent moisture from degrading the fibers.

Which support for overhead line is no longer used?

Wooden poles: It is one of the cheapest types of line supports and used for lines where spans are short, and tension is low. It has very less life. Concrete poles: Concrete pole gave greater strength and used in place of a wood pole.

Do you ground fiber optic cable?

Pert Article 770 of the NEC, a fiber-optic cable containing non-current-carrying metallic components, such as armor or metallic strength members, is considered conductive. This is why conductive fiber-optic cables should be bonded and grounded as specified in NEC Article 770.100.

What are the two main types of support for overhead lines?

Line Supports

• Definition: The different types of structure (poles or towers) used for supporting the overhead lines or wires, such types of structures are called line supports. The line support plays a major role in power transmission.
• a. Wood Poles.
• b. Concrete Poles.
• c. Steel Poles.
• a. Self- Supporting Towers.
• b.

What are the four types of line supports?

Different types of line supports used for transmission lines…

• RCC and PCC poles.
• steel towers.
• steel poles.
• wooden poles, steel poles, RCC and PCC poles and steel towers.