Glass Insulators That Stay Visible When They Fail
A shattered toughened glass shell is spotted from the ground on the next line patrol. No hidden punctures, no thermal-vac testing campaign, no unplanned outage hunting for a dead unit.
One Supplier From U40B To U500B Strength Classes
Standard, fog and aerodynamic profiles from 40 kN to 550 kN mechanical failing load, built to the designation your utility specification already names.
High Strength Units For Long Span And Heavy Tension Sets
U300B to U500B units with 24 mm to 32 mm couplings, 195 mm to 240 mm spacing and up to 640 mm creepage for river crossings and heavy angle towers.
Open Profiles For Desert Sand And Industrial Fallout
A 380 mm to 420 mm flat shed with no ribbing lets wind and rain carry deposits off the surface instead of trapping them under the skirt.
- Nov 2017Established
- 500 kV ACSystem Voltage
- 40 to 550 kNStrength Classes
- 40+ countriesExport Markets
- 30 + 30 daysStandard Lead Time
- 3 ISO certificatesManagement Systems
One Product Family Built Deep Not Wide
Toughened glass cap and pin suspension insulators for overhead transmission lines and substations, in standard, fog and aerodynamic shed profiles, from U40B through U500B.
Who We Serve
Transmission utilities, EPC contractors building lines and substations, hardware distributors carrying line fittings, and brand owners who need units marked with their own designation.
Why Customers Choose Us
A single plant in Pingxiang making one product family since November 2017, running GB, ANSI, BS, DIN, AS and IEC designs on the same line, holding ISO 9001, ISO 14001 and ISO 45001, and shipping to more than 40 countries.
The Problem We Solve
Porcelain and composite units fail invisibly. A punctured porcelain cap holds its shape and a degraded composite core hides inside a housing, so crews find them only with thermal or E-field survey gear. A toughened glass shell shatters and leaves the pin stub hanging, so the defective unit is identified on a routine ground patrol and replaced during planned work.
Every Class Huasheng Makes
Four product families covering standard, fog and aerodynamic shed profiles from 40 kN to 550 kN mechanical failing load. Each page carries the full published table.
Standard Type LXP40 To LXP1-160
U40B, U70BS, U70BL, U100BL, U120B, U160BS
View Specifications
Standard Type LXP-160 To LXP-550
U160BL, U210B, U240B, U300B, U420B, U500B
View Specifications
Fog Type LXWP1-70 To LXWP2-120
U70BLP1, U70BLP2, U100BLP1, U120BP1, U120BP2
View Specifications
Aerodynamic Type LAXP-70 To LAXP-160
U70BP, U100BP, U120BP, U160BP
View SpecificationsChoose The Shed Profile Before The Strength Class
Profile answers the environment. Strength class answers the load case. Getting the order of those two decisions right is most of insulator selection.
Glass Insulators
The full Huasheng range of cap and pin toughened glass suspension insulators for overhead lines and substations, from U40B to U500B.
Explore The Family
Standard Type Insulator
Ribbed profile cap and pin units covering U40B through U500B, the default choice for clean and lightly polluted line environments.
Explore The Family
Fog Type Insulator
Anti-pollution bell profile units giving 400 mm or 450 mm creepage on the same 146 mm spacing as a standard unit.
Explore The Family
Aerodynamic Type Insulator
Open flat profile units 380 mm to 420 mm wide with no underribs, so wind and rain clear deposits instead of trapping them.
Explore The FamilySix Failures That Cost Utilities Outages
Each of these is a real selection or specification problem that shows up on lines and in substations. Every product family on this site exists to answer one of them.
You Cannot Find The Failed Unit
On porcelain strings a punctured cap looks identical to a healthy one. Finding it means a buzz-stick or thermal survey over every tower in the section. A toughened glass shell shatters completely when the dielectric fails, so the stub is visible from the access road.
Pollution Flashovers In Coastal And Industrial Air
Salt fog, cement dust, fertiliser plants and refinery fallout build a conductive film across a standard shed. Fog type units answer this with 400 mm and 450 mm creepage over the same 146 mm spacing, so the string grows in leakage distance without growing in length.
Deposits Trapped Under Deep Ribs
In dry desert and sandstorm regions, ribbed undersides collect what never washes off. The aerodynamic profile removes the ribs entirely and widens the shed to 380 mm so airflow strips the surface between rain events.
The Specification Names A Designation You Cannot Source
A tender may call out LXP-240 under GB, U160BS under IEC, or an ANSI class. We build against GB, ANSI, BS, DIN, AS and IEC designs on the same line, so the unit is marked with the class the specification asks for.
Strings Sized Without Real Mechanical Margin
Every catalogue lists a mechanical failing load. What sizes a tension set is the routine test tension the unit is proof loaded to. Our tables publish both, from 20 kN proof on a U40B to 275 kN proof on a U500B.
Breakage In Transit To Remote Sites
Glass units travelling to high altitude or inland project sites see more handling than the line ever will. Packing and stacking has to be specified with the order, not left to whoever loads the container.
Where Our Insulators Go To Work
Overhead Transmission Lines
Suspension and tension strings for tangent, angle and dead end towers on systems up to 500 kV AC and 400 kV DC.
See The Application
Substations
Strain and support assemblies for substation gantries and bus work, in clean and polluted air.
See The Application
Coastal And Polluted Air
Anti-pollution insulation for salt fog coastlines, industrial corridors and chemical plant supply lines.
See The Application
Desert And Sandstorm Regions
Open profile insulation for dry pollution, wind-carried sand and long intervals between rain events.
See The ApplicationPingxiang Jiangxi Since November 2017
Finished units held in the Pingxiang plant. Customers are welcome at Luxi Industrial Park to walk the line and the stock yard before placing an order.
Jiangxi Huasheng Insulators Co., Ltd. is a supplier of insulators for overhead line and substation applications in China, specialising in insulator manufacture for systems up to 500 kv ac and 400 kv dc.
Where A Defective Unit Gets Caught
Cap and pin assembly. Glass shells, galvanised caps and pins are cemented and racked for curing before mechanical and electrical routine tests.
- Glass Melting And FormingShells are pressed from molten glass to the shed profile the class calls for, then checked for form and thickness.
- Thermal TougheningShells pass through the toughening tunnel so the surface goes into compression. This is what makes a failed unit shatter instead of crack quietly.
- Thermal Shock CheckToughened shells are thermally cycled so units carrying internal stress break in the plant rather than on the tower.
- Cap And Pin CementingGalvanised cap and pin are cemented to the shell and racked for cure, as shown in the workshop photograph above.
- Routine Mechanical TestEvery unit is proof loaded in tension to the routine test value published in the specification table for its class.
- Electrical Routine TestUnits are checked against the power frequency and impulse values listed for the class before release.
- Marking And PackingUnits are marked with class and year, then packed for the destination and transport mode agreed on the order.
Real Units Photographed In Our Plant
Every image on this site is a photograph of a Huasheng unit. Shed profile, cement line, cap marking and coupling are all visible at full size on each product page.
How We Work With Brands And Projects
OEM And Private Label Insulators
Standard designs produced and marked under your own brand, with engineering support on designation and coupling matching.
See How It WorksProject Supply And Export
From designation review through production, testing, packing and shipment to more than 40 destination countries.
See How It WorksSelection Guides Written For Engineers
Written to be useful before you contact anybody. If a guide tells you our product is the wrong answer for your site, that is the guide doing its job.
Toughened Glass Versus Porcelain And Composite Insulators
The three materials fail in different ways, and the difference in failure behaviour matters more to an operator than the difference in catalogue specification.
Read The GuideHow To Select A Suspension Insulator Strength Class
Mechanical failing load is the number in the class name. Tension proof load is the number you should be sizing against.
Read The GuideFog Type Insulators Creepage And Pollution Levels
How 400 mm and 450 mm creepage profiles change a polluted string without changing its length.
Read The GuideFrequently Asked Questions
What do you manufacture?
So as our name, we specialize in outdoor insulators, research and development of insulators and related products, providing reliable insulators for you. In practice that means toughened glass cap and pin suspension insulators in standard, fog and aerodynamic profiles, from U40B to U500B.
Can you produce under our own brand?
Yes, we private label your brand, and products can be customised for you. Our engineers provide OEM service to meet varying customer needs.
What is your delivery time?
Production 30 days plus delivery 30 days. Confirm the window against your site programme at order stage.
Can we visit your factory?
Yes. The plant is at Luxi Industrial Park, Pingxiang, Jiangxi, China, at the Luxi junction of the Shanghai-Kunming Expressway and Provincial Highway Hu-Rui G320.
Which standards do you build to?
Huasheng strictly complies with GB, ANSI, BS, DIN, AS and IEC standard designs, applicable to power transmission lines and substations.
What certifications do you hold?
The ISO 9001:2015 Quality Management System certificate, the ISO 14001:2015 Environment Management System certificate and the ISO 45001:2018 Occupational Health and Safety Management System certificate.
Send Us The Designation And We Will Confirm The Class
Give us the class marking, the coupling size and the quantity. We will come back with what matches in our published tables and what we do not make.