Composite Line Post Insulator 66kV 11kN

66kV Line Post Insulator technical parameters:

DIMENSIONS:

· Height：28.9±0.6"(735±15) mm.

· Dry Arcing Distance: 21.7"(551 mm).

· Min. Creepage Distance: 59.5"(1511 mm).

· Diameter Of  The Rod：2.2"(55mm).

· Number Of Sheds：11.

MECHANICAL:

· Max. Design Cantilever Load (MDCL)：1240 Lbs(5.5 kN).

· Specified Cantilever Load (SCL)：2475 Lbs(11 kN).

· Specified Tensile Load (STL)：5000 Lbs(22 kN).

· Standard：ANSI C29.17.

RAW MATERIALS:

1. End-fitting:

1.1 Material：Cast Iron Or Cast Steel,Hot Dip Galvanized.

1.2 Minimum thickness of the galvanization：86μm.

2. Core：

2.1 Material：Epoxy & Glass Fiber.

2.2 Diamter：∅2.2"(55 mm).

3.Weather sheds：

3.1 Material：HTV Silicone .

3.2 Color：Grey.

Wuhan Line Power could perform lots of electrial, mechanical and tracking & erosion test which comply with the ANSI  and IEC standard. Welcome to visit our factory and to witness the FAT. 

 

Different Types

 

The Post Line Insulator 

The flange base

The Vertical Clamp

Creeping discharge of insulator

Gas discharge along the gas-solid interface is one of the main causes of power system accidents. Surface discharge is a gas discharge phenomenon. Due to the uneven voltage distribution on the dielectric interface, the surface flashover voltage is lower than the breakdown voltage when the gas or solid exists alone.

Surface discharge has a great relationship with the electric field distribution on the surface of solid dielectric. Analyzing based on the insulation structure, there are three typical situations in which the solid medium is in the electric field between electrodes:

The solid medium is in a uniform electric field, and the interface between the solid medium and the gas is parallel to the direction of the electric power line, as shown in Figure 3-5(a). Although this situation is rarely encountered in engineering, in actual insulation structures, the medium is often in a slightly uneven electric field, and its discharge phenomenon has many similarities with the situation in a uniform electric field.

The solid medium is in an extremely non-uniform electric field, but in most places on the surface of the medium (except for a small area close to the electrode), the component of the electric field intensity parallel to the surface is larger than the perpendicular component, as shown in Figure 3-5(b) , this is the case for pillar insulators.

The solid medium is in an extremely non-uniform electric field, and the component of the electric field intensity perpendicular to the medium surface is much larger than the component parallel to the medium surface. As shown in Figure 3-5(c), this is the case for bushings.

1. What's your main products?
High Voltage Insulator / Medium Voltage Insulator:Suspension Polymer Insulator, Post Line Polymer Insulator, Substation Insulator, Railway Insulator, Pin Insulator.

2. Do you have a catalog? Could you send me your catalogue?
We have a catalogue. Please contact us, we can send you product catalog online or email.

3. Can your factory produce according to customer's requirements?
Yes,customized products are available.

4. What's your packing standard?
Usually we use standard cartons for packing or according to customers' requirements, main package is plywood cases .

5. What after-sales service do you provide?

12 months after-sales service available.

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