Waterproof Self-Cleaning Porcelain Spool Insulator for Factory Overhead Wire Installation

• Customization: Available
• Application: Low-voltage
• Material: Porcelain
• Model NO.: ED-2
• Structure: Shackle Insulator
• Type: A Type Insulator
• Usage: High Voltage Power Transmission, Insulation, Electrical Installation
• Connection Method: Trough Type
• Size of Bearing Capacity: 10kN
• Certification: ISO9001
• Color: Brown or White or Other
• Creepage Distance: 900mm
• Cantilever Strength: 10kN
• OEM: Yes
• Sample: Available
• Product Category: Low Voltage Line Insulator
• Surface Treatment: Multi-Color High Temperature Glaze
• Structural Design: Double Bobbin Groove, Central Through Hole
• Surface Performance: Glossy & Hydrophobic
• Weather Resistance: Anti-Salt Fog & Anti-Aging
• Core Function: Low Voltage Wire Fixing & Insulation
• Mechanical Feature: High Strength, Crack Resistant
• Application Field: Low Voltage Overhead Grid Fittings
• Service Life: Acid & Alkali Resistant, Long Lifespan
• Custom Service: OEM & ODM Color & Size Customizable
• Transport Package: Standard Export Package
• Trademark: DKLINE or according to customers requirements
• Origin: Wenzhou, Zhejiang, China
• Production Capacity: 10000 Pieces/Month
• Package Size: 120.00cm * 100.00cm * 80.00cm
• Package Gross Weight: 450.000kg

Product Description

Product Description

Low-voltage overhead power line insulators are suitable for use in power lines with alternating current or direct current voltages of 1000 volts or less for insulation and fixing of conductors. They include: low-voltage line pin insulators (referred to as pin insulators); low-voltage line butterfly insulators (referred to as butterfly insulators); and low-voltage line post insulators (referred to as post insulators).

1.The pin-type insulator for low-voltage lines is assembled from porcelain pieces and iron feet. The top of the porcelain piece has a wire groove, which is the part that bears the conductor. The bottom has a umbrella skirt, which has a relatively long leakage distance and possesses certain electrical insulation properties. The new model standard product is smaller in size, lighter in weight, and has good self-cleaning performance. Its electromechanical performance maintains the level of the old model product.

2. The butterfly insulator has two large skirts. It is shaped like a butterfly. The two skirts are tied together to hold the wires in the middle, and there is a central hole. It is fixed and connected to the cross arm using a screw pin.

3. The reel-type insulator has more than two umbrella ribs. The upper and lower umbrella ribs are tied together with the conductor in the middle, and there is a central hole. It is fixed and connected to the cross arm or clamp plate using a screw pin.

Product Advantages:

Application Scenarios:

- Multi-color glaze for line classification: Various glaze colors optional to distinguish different phase lines for easy maintenance
- Smooth hydrophobic glaze: Dense glossy surface repels water, rain washes dust automatically to reduce leakage risk
- High-strength monolithic body: One-piece sintered structure with great tensile & compression resistance, anti-breakage outdoors
- All-weather anti-corrosion performance: Resist sunlight, frost, rain and coastal salt fog, no cracking or fading after long-term use
- Easy mounting design: Central hole fits standard bolts, wires fixed by winding without extra clamps to speed up construction
- Chemically stable material: Acid & alkali resistant ceramic without aging, long maintenance-free service life

As supporting fittings for low voltage overhead grid, it fits all kinds of low voltage wiring projects:
1.Fixing & insulation for 0.4kV urban & rural overhead service lighting wires
2.Outdoor pole wiring for factory workshops and industrial parks
3.Small PV auxiliary low voltage outgoing lines and rural simple power supply lines
4.Old low voltage line renovation and temporary construction overhead wiring 
It can be matched with crossarm clamps and low voltage guy fittings to form a complete low voltage overhead line supporting system.

Pole Clamp:

Fuse Cutout:

Cross Arm:

Secures porcelain insulator assemblies on utility poles.

Protects distribution lines and transformers from overload faults.

Provides structural support for insulator and conductor installation.

OEM & ODM Custom Service:

We own independent porcelain sintering production lines, providing full-range customization for overseas clients:
1.Glaze Color Customization: Customize red, yellow, green, brown, white and other colored glazes as required
2.Size Customization: Adjust overall diameter, height and central hole size to fit different bolts
3.Logo Engraving: Print customer LOGO and model codes on porcelain surface
4.Complete Kit Customization: Supply sets matched with crossarms and bolts for one-stop delivery
5.Export Packaging Customization: Standard neutral export cartons and exclusive brand outer packages available 
Professional technical team tracks sampling, trial production and mass delivery, supporting stable bulk foreign trade orders.

Specification

Type	Dimensions(mm)						Mechanical failing load(kN)	Min power frequency
	H	D	d	d1	d2	r		Dry	Wet
ED-1	90	100	95	50	22	12	12	22	10
ED-2	75	80	75	42	20	10	10	18	9
ED-3	65	70	65	36	16	8	8	16	7
ED-4	50	60	55	30	16	6	5	14	6
ED-2(B)	76	89	83	48	21	10	13	-	-
ED-2(B)1	76	89	83	48	17.5	10	13	-	-
ED-2(C)	86	86	/	50	22	6	13.5	25	12

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.