70Е (PSD-70E) Glass Suspension Insulators are widely used in Russia for high-voltage transmission and distribution lines. They are known for their reliability and long service life, even in heavily polluted environments. Their design and manufacturing comply with Russian GOST standards, ensuring robust performance. These insulators are manufactured according to Russian standards, ensuring consistent quality and reliable operation in various climatic zones, including areas with high ice and wind loads.
Toughened Glass Construction:
Made from chemically tempered glass, the PSD-70E offers exceptional mechanical strength (70kN mechanical load rating) and resistance to thermal shock, corrosion, and UV degradation.
Shatters into harmless granular pieces upon failure, enhancing safety and simplifying inspections.
Double Shed Design:
Two strategically placed sheds increase creepage distance, reducing the risk of electrical arcing and flashovers in polluted, humid, or coastal environments.
Optimized for performance in extreme weather, including heavy rain, ice, or salt-laden atmospheres.
Technical Specifications
Model: PSD-70E
Mechanical Load Capacity: 70 kN (15,700 lbs)
Creepage Distance: ≥320 mm (varies by design)
Standards Compliance: IEC 60383, ANSI C29.2, and other international certifications.
Weight: ~8–10 kg (lightweight compared to ceramic equivalents).
Advantages Over Ceramic and Composite Insulators
Visibility: Transparent glass allows easy visual inspection for cracks or damage.
Applications
The PSD-70E is ideal for:
High-Voltage Transmission Lines (up to 765 kV)
Railway Electrification Systems
Substations and Switchyards
Polluted or Coastal Areas where salt fog or industrial contaminants are present.


Who We Are?
Nooa Electric Co., Ltd. - Chinese professional electrical insulators manufacturer with 21+ experience, covering an area of 70,000 square meters, and construction area is 50,000 square meters. There are more than 200 employees, including 25 technicians. The production capacity 3500000 pieces per year, and now setting up the new kiln and lines up to 10500000 pieces per year. We have been specialized in research and development of latest high-strength functional glass and power transmission insulators, which is the qualified supplier for State Grid Corporation of China and Southern State Grid Corporation of China, and is a participating unit of product standard formulation of the national electrical insulator standard committee.
Certificates & Reports: INTERTK, SGS, BV Certificates,Type Test Certificate.
Main Electric Insulators : Standard-type glass insulator (u40(ctv175)/u70(ctv254, ps70e)/u120/u160/u210/u300) , antipollution-type glass insulators (u120bp/u160bsp/u210bp), aerodynamic type glass electrical insulators (ug70bsa/u100bsa/u120bla), multi-umbrella type electric insulators, ground-wires type glass power line insulators (u70cn/u100cn/u120c), post insulator for line, pin glass insulator. Products are mainly used for transmission line insulation, suspension, support, tension conductors. They are divided into 5 major series: The standard type glass insulator 40-550kn, filth-resistant type glass insulators 70-420kn, aerodynamic type glass electrical insulators 120-300kn, multi-umbrella type electric insulators 120-300kn, and ground circuit type high voltage insulators, able to be used for line voltage from 10kv~1000kv.
Core Technology:
Automation Equipment: Siemens fully automatic feeding, stamping, temperature equalization, tempering, hot and cold shock control system.
Independent Product Model: U160BP/146/380/450, U160BP/155/380/450, U210BP/170/420/550 and U300BP/195/420/550.
Advanced Klin: Germany's new generation kiln control system, equipped with brand-new sensors and actuators, and equipped with a high-precision automatic batching system.
Qualification: Passed the quality, environment and occupational health system certification and obtained a number of invention patents.
Goal:
To be the world's largest glass insulators manufacturer.
