33kv Pin Type Insulator
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33kv Pin Type Insulator

Name: China Customized 33kv Pin Type Insulator Manufacturers Suppliers Factory - Gaodian Tech.
Brand: Gaodian
SKU: 308821611

33kV pin type insulator for Medium-Voltage Distribution Lines, Overhead Line
Compliant with standard IEC61952, ANSI C29.18

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Description

Technical Parameters

Gaodian Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of 33kv pin type insulator in China. With abundant experience, we warmly welcome you to buy advanced 33kv pin type insulator made in China here from our factory. We also accept customized orders.

The primary functions of 33Kv pin type insulator are electrical insulation and mechanical support and fixation.

Overhead high-voltage conductors carry high-voltage electricity, while utility poles and cross-arms are grounded metal components; the silicone rubber sheds and epoxy fiberglass core rod insulate the live conductor from the grounded tower, preventing leakage current, pollution flashover, and lightning flashover, thereby avoiding electric shock accidents and line tripping.

The long bottom stud secures the unit to the pole cross-arm, while the top wire groove or clamp grips the high-voltage conductor; it bears the conductor's dead weight as well as wind and ice/snow loads, providing stable support and serving as a replacement for traditional porcelain pin-type insulators.

Weighing only one-fifth to one-tenth of porcelain insulators, it reduces the load on the tower and is resistant to breakage or fracture.

Specification

product-1355-340

NO.	Model	Structure Height (mm)	Creepage Distance(mm)	Dry Arc Distance(mm)	Specified Cantilever Load SCL(kN)	Power Frequency Wet Withstand Voltage(kV)	Lightning Impulse Withstand Voltage(kV)
1	FP-33/12.5	330	820	300	12.5	90	170
2	FP-33/10-1080	375	1080	400	10	90	200
3	FPS-33/11	555	1080	370	11	95	185

Product detail

Product Type	33Kv pin type insulator
Rated Voltage	23kV
Cantilever Load	12.5kN
Housing	HTV Silicone rubber
End fittings	Hot-dip Galvanized Steel (Zinc coat≥86μm)
Core Rod	Epoxy Resin fiberglass
Color	Grey (customizable)
Manufacturing standard	IEC61952, ANSI C29.18
Warranty	2 years

Conditions of use

Item	Guaranteed value
Altitude	≤2000 m
Ambient Temperature	-40℃ to +40℃
Relative Humidity	Daily average ≤95%
Wind Speed / Wind Pressure	≤35 m/s
Ice Accretion Thickness	≤10 mm
Pollution Class	Class e

Why choose us?

processing of overhead line composite pin insulator

Production Lines

We manufacture silicone rubber ourselves
We manufacture end fittings ourselves
We manufacture fiberglass core ourselves
Everything is made in house, no outsourcing

Strict Quality Assurance (100% Testing)

All insulators are subjected to:

● Visual examination

● Mechanical load testing

● Tightness inspection

● Routine dimensional verification

test procedure of overhead line composite pin insulator

Certified by national and international laboratories

5000hour aging test passed
Prototype test passed
IEC & ANSI standards compliant

Applications

Overhead tangent poles for 10kV/24kV/33kV urban and rural distribution networks;

Preferred for use in areas with heavy pollution, such as coastal regions, chemical plant zones, and mining areas;

Suitable as a replacement for porcelain insulators in mountainous, high-altitude, and hail-prone regions.

Packaging and delivery

Payment term: TT, L/C

Price term: FOB, CIF, CFR

Delivery Method: By ocean, air or overland

Package: Products are sealed in anti-moisture barrier wraps, cushioned against impact, and packed into ISPM 15-compliant fumigation-free wooden crates or heavy-duty palleted cartons. Reinforced with high-tensile strapping and internal container lashing, our packaging guarantees safe delivery through long-distance maritime transit.

packaging of overhead line composite pin insulator

FAQ

Q: What technical information do I need to provide to get an accurate quote?

A: To help us provide the exact model and pricing, please specify:

1.System Voltage (e.g., 11 kV, 15 kV, 24 kV, or 33 kV / 36 kV)

2.Specified Mechanical Load / Cantilever Strength (e.g., 5 kN, 10 kN, or 12.5 kN)

3.Minimum Creepage Distance (e.g., 31 mm/kV for heavy pollution)

4.Pin Thread Type & Spindle Length (ANSI standard thread or custom dimensions)

5.Color Preference (Standard Gray or Red)

Q: How do composite pin insulators perform in extreme weather conditions?

A: Temperature Range: Engineered to operate reliably from -40∘C up to +50∘C ambient temperatures.

UV & Ozone Exposure: High-grade HTV silicone rubber prevents surface cracking, chalking, or degradation caused by intense solar radiation.

Heavy Pollution / Coastal Areas: High creepage distance designs prevent tracking and flashovers in high-salinity or heavy-dust zones.

Q: Can these insulators be installed on standard steel, concrete, or wooden crossarms?

A: Yes. Our composite pin insulators come with standard threads (such as 1 inch or 1-3/8 inch ANSI threads or ISO metric threads) on the base fitting or forged steel pin. They are fully compatible with standard utility crossarm hardware and spindle pins.

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