Porcelain Stay Insulators

Product Description

Porcelain Stay Insulators, Porcelain Insulators in The Stay Wire

Porcelain Stay Insulators, also known as low voltage insulators, stay type insulators, or egg insulators, are used to provide electrical insulation and mechanical support in overhead power lines. To prevent the dead end pole or terminal pole from falling down, it is essential to select the appropriate types of stay insulators and pole line fittings. Yipeng stay insulators are designed to prevent accidental electric conduction on the stay wire. Yipeng is a Leading manufacturer of power line insulators, offer types of stay Insulators, provide support on design, fabrication, evaluation and installion.

As a professional porcelain stay insulators manufacturer China, HBYP produces 11kV stay insulators and 33kV stay insulators using high-quality glazed porcelain in full compliance with ANSI C29.4 porcelain strain insulators, BS 137, and IEC standards. Our porcelain guy strain insulators deliver superior puncture resistance, corrosion resistance, and long-term reliability in harsh environments.

Advantages of Our Porcelain Stay Insulators

Exceptional mechanical strength for tension control and extreme weather
Superior dielectric properties and insulation resistance
Corrosion/chemical/pollution resistance
Wide temperature range and near-zero maintenance
Easy installation with customizable fittings
Cost-effective for bulk projects

Applications of Porcelain Guy Strain Insulators

Porcelain stay insulators are mainly installed in the middle of stay wires and guy wires on overhead line poles. In normal operation, the porcelain stay insulator insulates the upper live part of the stay wire from the lower section connected to ground. In case the conductor or pole fails, the porcelain stay insulator ensures that the lower portion of the stay wire will not become energized, reducing the risk of electric shock accidents.

Overhead transmission & distribution lines (guy wires/stay wires)
Dead-end poles and terminal structures
11kV and 33kV networks, substations, and industrial systems

By choosing the right porcelain stay insulator for your stay wires and guy wires, you can significantly improve the safety and stability of the entire overhead line system.Contact us.

How does a stay insulator function?

The stay insulator body has two holes, through which two guy grips pass in opposite directions. The guy grips wrap around the stay wire to create the connection.

The method of connection can vary by market, with different regions having different connection practices. As an insulator manufacturer and supplier, we can also design insulator fittings according to customers' designs and drawings.

Stay Insulator

According to the voltage, there are 11kv stay insulators and 33kv stay insulator 11kv stay insulator is used on the 11kv overhead line network in the power system. Yipeng stay insulator is used to connect the stay wire or guy wire.

Yipeng stay insulator is made of glazed porcelain according to BS137 and suitable for operation outdoors. The working condition for the 11kv stay insulator is as below :

Normal system voltage 11kv

System highest voltage 12.5kv

50 cycles dry flash over 40kv

50 cycles wet flash over 22kv

Leakage distance 80mm

Tensile strength 90kn

Features of Porcelain Stay Insulators

High mechanical tensile strength to withstand the tension of stay wires and guy wires on overhead line poles.
Excellent electrical insulation performance, ensuring safe clearance between live conductors and ground for low voltage and medium voltage systems.
Durable wet‑process porcelain body with glazed surface, offering good resistance to pollution, moisture, UV and aging.
Compact and robust design of the porcelain stay insulator, easy to install on existing stay wire assemblies with standard hardware.
Suitable for use as low voltage porcelain stay insulator on 0.4kV lines and as 11kV porcelain stay insulator or 33kV porcelain stay insulator on distribution networks.

With these features, our porcelain stay insulators help enhance the safety and reliability of overhead distribution lines and LV lines.

Cat No.	AS Class	Fig	Wet power frequency Withstand Voltage KV	Stand or Wire rope dia Mm	Mechanical failing load KN
GY-1	J-2.7	1	10	7/2.75	27
GY-2	J-7	2	15	19/2.00	71
GY-3	J-16	3	20	19/2.75	222
GY-4	J-16B	4	30	19/2.75	222

AS STANDARD


Cat No.	Fig	Main dimension mm						Leakage Distance mm	Mechanical Failing load KN	Low-frequency voltage		Weight Kg
Cat No.	Fig	A	B	C	D	E	F	Leakage Distance mm	Mechanical Failing load KN	Dry KV	Wet KV	Weight Kg
11.1354	1	78	35	25	44	14		32	18	25	12
11.1075	1	95	57	37	50	19		48	45	45	15
11.0522	1	136	85	60	62	19		63	110	110	18	2
11.0521	1	190	85	60	72	25		63	110	110	23	4.9
PS10	2	59	35	25.5	39.5	8	6.5					15.1
PS9/3	2	60	26	25.5	38	8	6.5					20.6
NEF-2-60	2	60	28	25.5	38	10	6.5
NEF-2-58	2	58	24	23	37	8	6
40*55	2	55	27	22.5	40	12	8

SA STANDARD

Selection Guide for Porcelain Stay Insulator

When selecting a porcelain stay insulator, please consider the following points:

System voltage: decide if you need a 0.4kV porcelain stay insulator for LV lines, or an 11kV porcelain stay insulator or 33kV porcelain stay insulator for distribution lines.
Mechanical load: check the required tensile strength of the stay wire or guy wire and choose a porcelain stay insulator with adequate mechanical rating.
Standard and type: confirm whether your project requires ANSI 54‑1, ANSI 54‑2, ANSI 54‑3 or ANSI 54‑4 porcelain stay insulator, or an IEC/BS standard type.
Installation conditions: consider outdoor environment, pollution level and available space on the pole, so that the low voltage porcelain stay insulator can be installed easily and safely.

If you are not sure which porcelain stay insulator type is suitable, our technical team can recommend models based on your drawings and technical specifications. We can also provide OEM porcelain stay insulator and ODM porcelain stay insulator service for special designs.

Get a Quote

As a porcelain stay insulator manufacturer in China, we supply high‑quality porcelain stay insulators for stay wires and guy wires in overhead line projects. We offer standard ANSI porcelain stay insulators and custom low voltage porcelain stay insulator solutions to meet different market requirements.Send Inquiry.