Braced Line Post 230kV Composite Insulator

It is not a single insulator, but a triangular composite insulator assembly, consisting of two insulator parts and fittings. It is commonly used in compact high-voltage transmission lines (very common in North America, primarily 115kV to 345kV).

1. Horizontal Line Post Composite Insulator (line post/strut): Horizontally mounted on the tower, bearing compressive and lateral loads; the core is an FRP (fiberglass reinforced epoxy resin) rod, and the outer sheath is made of high-temperature vulcanized silicone rubber (HTV silicone rubber), providing insulation, creepage distance, and water repellency to prevent flashover.

2. Inclined Suspension Composite Insulator (brace): Inclinedly supports the conductor end of the line post, with the upper end fixed to the tower. It primarily bears tensile stress, forming a triangular support with the horizontal post, significantly improving vertical and longitudinal load-bearing capacity and addressing the insufficient bending resistance of ordinary single line posts.

3. Matching: Galvanized steel connecting fittings.

4.Appliction :Braced post insulator assembly used to replace horizontal vees for every 4th structure on 230 kV line to improve wind stability.

  

DIMENSIONS:
· Height：91.4''±1.2''(2322±30 mm).
· Min. Dry Arcing Distance：83.5''(2120 mm).
· Min. Creepage Distance：258.3''(6560 mm).
· Diameter Of The Rod：∅2.8''(70 mm).
· Number of Sheds: 47 .

RAW MATERIALS:
1. End-fitting:
1.1 Material: Hot Dip Galvanized Steel.
1.2 Mean coating thickness(minimum): 86μm.
2. Core:
2.1 Material: Epoxy & Glass Fiber.
3.Weather sheds:
3.1 Material: HTV Silicone .
3.2 Color: Gray.

MECHANICAL:
· Specified Cantilever Load (SCL)：8.3 kN.
· Maximum Design Cantilever load(MDCL)：4.2 kN.
· Specified Tension Load (STL)：111 kN.
· Standard：ANSI C29.17.

ELECTRICAL:
· Rated Voltage：230 kV.
· Low Frequency Flashover Voltage (Dry/Wet) : 800 kV/659 kV.
· Critical Impulse Flashover Voltage (Pos./Neg.) : 1265 kV/1298 kV.
· Standard：ANSI C29.17.

DIMENSIONS:
· Height:93.7''±1.18''(2380±30 mm).
· Min. Dry Arcing Distance: 83.1''(2110 mm).
· Min. Creepage Distance: 249.6''(6340 mm).
· Diameter Of The Rod: ∅0.71''(18 mm).
· Number Of Sheds: 77.

RAW MATERIALS:
1. End-fitting:
1.1 Material: Hot Dip Galvanized Steel.
1.2 Mean coating thickness(minimum): 86μm.
2. Core:
2.1 Material: Epoxy & Glass Fiber.
3.Weather sheds:
3.1 Material: HTV Silicone .
3.2 Color: Gray

MECHANICAL:
· Specified Mechanical Load (SML)：25000LBS(111kN).
· Routine Test Load (RTL)：12500LBS(55.5 kN).
· Standard：ANSI C29.12.

ELECTRICAL:
· Rated Voltage：230 kV.
· Low Frequency Flashover Voltage (Dry/Wet) : 800 kV/659 kV.
· Critical Impulse Flashover Voltage (Pos./Neg.) : 1265 kV/1298 kV.
· Standard：ANSI C29.12.

 

Accessories

 

Socket-Tongue

U Solt

Turnbuckle Assembly

Braced Post Insulator, Braced Line Post Insulator,Braced Post Insulator Assembly,Braced Line Post Assembly, Supported Line Post Insulator,Horizontal Line Post Insulator with Brace, Composite Braced Post Insulator, Polymer Braced Line Post,

Hot Tags: braced line post 230kv composite insulator, China, manufacturers, suppliers, factory, wholesale, for sale, 138kV Composite Station Post Insulator, 220kV station post insulator, 330kV station post insulator, 69kV Composite Station Post Insulator, Polymer Station Post Insulators