Outdoor Silicone Rubber Composite Polymer Insulator for Hv Distribution & Transmission (Pin/Suspension/Tension/Post)

• Customization: Available
• Application: High-voltage
• Material: Composite Polymer
• Model NO.: FXB-33/70
• Structure: Suspension Insulator
• Type: A Type Insulator
• Usage: High Voltage Power Transmission
• Connection Method: Spherical Type
• Size of Bearing Capacity: 70KN
• Certification: ISO9001
• Color: Grey
• Brand: Sihedan
• Rated Voltage: 33kv
• Housing: Silicone Rubber
• Core Material: Fiberglass Epoxy
• Mechanical Load: High Strength
• Installation: Outdoor
• Pollution Class: Heavy
• Custom-Made: Can Be Customized According to Customer Specificat
• Transport Package: Standard Export Package
• Specification: 33kV
• Trademark: DKLINE or according to customers requirements
• Origin: Wenzhou, Zhejiang, China
• Production Capacity: 6000 Pieces/Month
• Package Size: 113.00cm * 108.00cm * 122.00cm
• Package Gross Weight: 630.000kg

Product Description

Product Description

The 33kV Composite Polymer Insulator is a high-performance electrical insulator designed for tension, suspension, and strain applications in overhead power lines and substations. Featuring a silicone rubber housing over a fiberglass reinforced polymer (FRP) core, it offers superior mechanical strength, pollution resistance, and long-term durability in harsh environments.

The Polymer Insulator is lightweight, anti-pollution, and resistant to UV aging, making it suitable for harsh weather conditions and long-distance transmission projects. It is widely used as an Electrical Insulator in overhead transmission lines and utility power systems.

Key Advantages:
- Lightweight & High Strength: FRP core with tensile strength up to 120kN, 70% lighter than porcelain insulators.
- Silicone Housing: Excellent hydrophobicity, UV resistance, and self-cleaning properties (IEC 61109 compliant).
- Pollution Resistance: Designed for Class IV heavy pollution areas (salt, dust, industrial).
- Corrosion-Free: Non-metallic end fittings (optional hot-dip galvanized steel for extreme conditions).
- Standards Compliance: IEC 61109, ANSI C29.11, GB/T 19519.

Applications:

- 33kV overhead line dead-end/tension zones
- Substation busbar supports
- Coastal or industrial high-pollution areas
- Railway electrification systems

Specification

Product Model	Rated Voltage (kV)	Rated mechanical bending load (kN)	Structure Height H. (mm)	Minimum Arc distance Li. (mm)	Minimum creepage distance Lc. (mm)	Diameter of shed D. (mm)	Lightning impulse without voltage (peak) (kV)	P.F. 1min wet withstand voltage (Virtual value) (kV)
FXBW-11/70	11	70	350	180	420	92	95	45
FXBW4-11/80	11	80	450	280	550	148/118	125	65
FXB-24/70	24	70	425	230	575	98/88	125	65
FXBW-24/100	24	100	440	270	850	130/100	125	65
FXBW-24/120	24	120	545	320	900	115/85	145	65
FXB-33/70	33	70	505	330	900	92	200	95
FXBW-33/80	33	80	720	55	1650	148/118	250	135
FXBW-33/100	33	100	570	385	1050	115/75	200	95
FXBW-36/120	36	120	670	430	1400	130/100	185	95
Stay Insulator	33	120	1782	1500	1782	-	-	-

Surge Arrester

Dropout Fuse Cutout

Suspension Clamp

Used together with insulators to effectively protect power lines and equipment from lightning strikes and switching overvoltage.

Provides overload and short-circuit protection for distribution lines, ensuring safer power system operation.

Used for conductor suspension and support, ensuring stable line performance together with insulators.

Company Profile

About us

Baoding Sihedan Electric Technology Co., Ltd. is a professional manufacturer of power systems and transmission and distribution line materials, providing diverse solutions for the global energy sector.

Our product includes Power Systems, such as Reclosers, Air Break Switches, Load Break Switches, SF6 and Vacuum Circuit Breakers, and Current Transformers (CTs) and Voltage Transformers (VTs); Insulators & Surge Protection, including Insulators, Surge Arresters, and Drop-out Fuses; Electric Power Fittings, such as Overhead Line Fittings, Stay Materials, Steel Structures, and Earthing Materials; and Enclosures & Switchgears, including Enclosures and Switchgears, offering a complete range of solutions for transmission, distribution, and industrial power applications.

 

To support our product quality, we provide warranty letters and test reports for all products. Additionally, we offer virtual maintenance services, ensuring timely support and expert guidance for our clients, wherever they are.We have successfully contributed to major domestic and international power projects, earning long-term trust from the State Grid Corporation of China and China Southern Power Grid Company, among other leading organizations.

Main products

Packing & Delivery

FAQ

Q1: Are you a factory or a trading company?
A: We are a professional manufacturer with our own production workshop and complete testing equipment.

Q2:Can you provide samples? Are the samples free?
A: Samples are available, but not free of charge; the sample fee and freight cost shall be borne by the buyer.

Q3:How long is the warranty period of the products?
A: We provide a 1-5 year warranty against manufacturing defects, starting from the date of shipment.

Q4:EPC material design and bulk supply?

A:Yes, we have a strong design team and have been supplying LV and MV EPC materials in bulk for many years.

Q5:Complete documents for tender?

A:Yes, a complete set of documents is ready for submission.

Q6: Can you do OEM with our brand?
A: Yes, we accept OEM customization with your logo, brand, and packaging.

Q7:What kind of packaging do you use for the products?
A: Standard export pallets with waterproof and moisture-proof treatment, suitable for long-distance ocean transportation.

 

Q8: What payment methods do you accept?

A:  1. 30% T/T in advance, 70% T/T against copy of B/L(Bill of Lading)

      2. 30% T/T in advance, 70% by L/C                                                                             

 

Q9: What shipping options do you provide, and what are the typical lead times for delivery? 

A:Sea Freight, and the lead times is about 15-30 days.