High Voltage Transmission Lines
Suspension and tension strings for 10 kV to 500 kV AC and DC overhead lines.
The Three Problems On This Kind Of Route
String design has to hit a specified mechanical fail
String design has to hit a specified mechanical failing load and a specified creepage distance at the same time.
Zero-value units on a porcelain string are invisible
Zero-value units on a porcelain string are invisible from the ground and need hot-line testing.
Coupling sizes have to match the hardware already sp
Coupling sizes have to match the hardware already specified for the project.
What Huayao Brings To The Specification
Toughened glass discs from 40 kN to 550 kN with published fa
Toughened glass discs from 40 kN to 550 kN with published failing load, routine test load, creepage distance and coupling size for every type.
Self-shattering behaviour makes a failed unit visible on a g
Self-shattering behaviour makes a failed unit visible on a ground or helicopter patrol.
Ball and socket couplings in 16, 20 and 24 mm to IEC 60120 d
Ball and socket couplings in 16, 20 and 24 mm to IEC 60120 dimensions.
Categories Specified For This Application
Standard Type Glass Insulator
24 products →
Pollution Resistant Type Glass Insulator
25 products →
Aerodynamic Type Glass Insulator
10 products →
Multi Umbrella Type Glass Insulator
8 products →U70BL High Voltage 70 KN Electrical Glass Insulator
View specifications →
PS70E 70kN EMS Anti Fog Type Corrosion Proof Disc Insulator Glass Type
View specifications →
PSV70A High Voltage 70 KN Electrical Glass Insulator
View specifications →
PSD70E 70kN EMS Anti Fog Type Corrosion Proof Disc Insulator Glass Type
View specifications →
PSV160A 160kN EMS Anti Fog Type Corrosion Proof Disc Insulator Glass Type
View specifications →
PSV120B 120kN EMS Anti Fog Type Corrosion Proof Disc Insulator Glass Type
View specifications →U160BP/155M 400kV HV160kN Aerodynamic Disc Suspension Glass Insulator
View specifications →
U160BP/146M 400kV AC 160kN Air-dynamic Disc Suspension Glass Insulator
View specifications →From Order To Port
Type confirmation
Type code, load class, creepage and coupling agreed in writing before production.
Production slot
Booked against an annual capacity of six million pieces on two lines.
Routine testing
Every insulator takes a tensile load test; failures are removed and traced.
Inspection
Buyer visit or third-party inspection by Intertek, BV or SGS.
Packing and shipment
Wooden crates for sea freight, documents issued with the bill of lading.
High Voltage Transmission Lines Questions
Straight answers to the questions buyers ask before a first order.
What do you supply for high voltage transmission lines?
Suspension and tension strings for 10 kV to 500 kV AC and DC overhead lines.
How do I confirm the creepage distance I need?
Take the specified creepage in mm per kV for the pollution class, multiply by the system voltage, then divide by the creepage of one unit to get the number of units in the string. Per-unit creepage is published on every product page.
Which documents come with the shipment?
Packing list, routine test record for the batch and, where the buyer asks for it, the third-party inspection report from Intertek, BV or SGS.
Can you supply both glass and porcelain on one order?
Yes. Both families are made in the same plant in Luxi County, so a mixed scope ships together.
Send Us The Route Data For Your High Voltage Transmission Lines Project
Voltage, span, conductor, pollution class and the load class in the specification. We will return a type list with drawings.