70KN High Voltage Double Shed PSD-70E Glass Insulator For Power Transmission

Double Shed Glass Insulator is a high-performance electrical insulation component designed for power transmission and distribution systems. Featuring a unique dual-shed (double petticoat) design, it significantly enhances creepage distance, improving resistance to pollution, moisture, and electrical leakage in harsh environments such as coastal areas, industrial zones, and high-humidity regions.

Color:	Natural
Material:	Glass
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Model:
Double Shed
Brand:
NJREC

Double Shed Glass Insulator Suspension Glass Insulator Double Shed Tempered Glass Insulator Tempered Glass Insulator Suspension Type Glass Insulator Disc Glass Insulator

Product Description

| Company Profile

Nanjing Rainbow Electric Co., Ltd. (NJREC) is a leading Chinese manufacturer and supplier of electrical insulators and transformer bushings.NJREC undertakes and offer the reliable electrical insulators for transmission lines and substations. We also provide one-stop solutions for distribution & power transformers, pad-mounted transformers and wall-mounted applications.

| Product Introduction

As a linchpin for power transmission systems, double - shed disc suspension - type tempered glass insulators are indispensable for delivering both electrical insulation and mechanical stability.

Key Features & Benefits:

✔ Enhanced Electrical Insulation – The double-shed structure extends the surface leakage path, preventing flashovers caused by contamination and wet conditions.
✔ Superior Pollution Resistance – Ideal for medium to heavily polluted areas, reducing maintenance frequency compared to single-shed designs.
✔ Self-Cleaning Effect – Angled sheds promote rainwater runoff, minimizing dirt accumulation and sustaining long-term performance.
✔ Mechanical Durability – Manufactured from tempered glass, it withstands high mechanical loads and extreme weather conditions.
✔ Wide Application – Used in overhead transmission lines, substations, and transformer bushings, ensuring stable power flow and grid reliability

| Data Sheet

Double-shed Type	Spacing(mm)	Diameter (mm)	Creepage Distance(mm)	Standard Coupling	Mechanical Faiing Load(kN)
U70BLD	146	280	450	16	70
U100BLD	146	280	450	16	100
U120BLD	146	280	450	16	120
U160BD	155	280	450	20	160
U210BD	170	280	450	20	210
U240BD	170	280	450	24	240
U300BD	195	330	485	24	300
U160BT	170	320	550	20	160
U210BT	170	320	550	20	210
U240BT	170	320	550	24	240
U300BT1	195	320	550	24	300
U300BT2	195	400	635	24	300
U420BT	205	400	635	28	420
U550BT	240	400	635	32	550

| Support Custom

| Factory Pictures

The Glass Insulator is a reliable and versatile product, suitable for a wide range of applications in the electrical power industry, providing essential insulation and mechanical support for safe and efficient power transmission and distribution.

glass-insulators

| Product Applications

Widely used in power transmission and distribution projects. They are installed on transmission towers and substation equipment, effectively preventing electrical leakage and ensuring the stable operation of power lines. Whether in high - voltage long - distance transmission or substation internal wiring, they can provide reliable insulation protection.

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