Glass Fog Profile Suspension Insulators LXHP-70 / U70BP/ U70BLP
70 kN Fog Disc Available in 255 mm and 280 mm Sheds
LXHP-70 covers two toughened glass fog discs on one 70 kN rating: U70BP on a 255 mm shed with 400 mm creepage, and U70BLP on a 280 mm shed with 450 mm creepage. Both share the 146 mm spacing and 16 mm coupling, so a project can raise pollution performance mid-route without changing hardware or string geometry. Unit weight is 4.8 kg and 5.4 kg respectively.
Key Benefits
- Two creepage options, 400 mm and 450 mm, on one coupling and spacing
- 70 kN failing load with a 35 kN routine tension proof
- Lightest fog discs in the range at 4.8 kg and 5.4 kg
- Shared 16 mm coupling simplifies spares across a mixed route
Technical Features
- 146 mm spacing and 16 mm coupling on both variants
- 80 kV and 82 kV dry power-frequency withstand for the two sheds
- 120 kV and 125 kV dry lightning impulse withstand
- 130 kV puncture withstand voltage
Published Figures for This Design
The values below are the catalogued figures for this type. Where a figure your specification needs is not listed, ask and we will confirm it in writing rather than estimate it.
| Diameter (D) | 255mm & 280mm |
|---|---|
| Spacing (H) | 146mm |
| Creepage Distance | 400mm & 450mm |
| Coupling Size | 16mm |
| Net Weight Each | 4.8 & 5.4kg |
| Mechanical Failing Load | 70kN |
|---|---|
| Tension Proof | 35kN |
| Dry Power-frequency Withstand Voltage | 80 & 82kV |
|---|---|
| Wet Power-frequency Withstand Voltage | 45 & 50kV |
| Dry Lightning Impulse Withstand Voltage | 120 & 125kV |
| Puncture Withstand Voltage | 130kV |
| Test Voltage RMS to Ground | 10kV |
|---|---|
| Maximum RIV at 1000 kHz | 50μV |
Application Scenarios
- 33 kV to 110 kV suspension strings crossing changing pollution zones
- Distribution feeder upgrades in coastal towns
- Lines where only part of the route needs the higher creepage
Who It Is For
- Utilities managing routes that pass through several pollution classes
- Contractors who want one hardware set for a whole project
- Distributors stocking a light fog disc for maintenance work
Problems It Solves
- Two different couplings on one line because pollution zones were specified separately
- Standard-profile strings flashing over in the coastal section of a route
- Heavy discs on lines where crews are working from poles rather than towers
How This Design Differs From the Alternatives
Compared With LXP-70 / U70BL standard profile
Same 70 kN rating and coupling, with 400 to 450 mm of creepage instead of 320 mm.
Compared With LXHP-120 / U120BP
Same fog family at half the mechanical rating, for lighter conductors and shorter spans.
Specifying and Installing This Unit
- Pick U70BP for the cleaner part of the route and U70BLP where the salt or dust load is higher
- Keep the 35 kN tension proof value as the routine working reference
- Do not mix the two sheds inside a single string
- Record which shed is installed at each structure so replacements match
Questions About This Product
Why are two different discs sold under one model number?
U70BP and U70BLP share the 70 kN rating, the 146 mm spacing and the 16 mm coupling. They differ only in shed diameter and creepage, so they are catalogued together. State which variant you need on the order.
Can we swap between the two on the same line?
Yes, between structures. Inside one string all units must be the same variant, so the electrical and mechanical behaviour stays uniform.
What conductor size does 70 kN suit?
That depends on span, tension and ice loading rather than conductor size alone. Run the string load calculation against the 35 kN proof value and step up a rating if it is exceeded.
Are these suitable for coastal service?
The 450 mm creepage variant is the one normally specified for salt deposit. The final decision comes from your site pollution class assessment.
How are the units marked?
Each unit carries its type designation and production identification so the variant can be confirmed on site before assembly.
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Request A Quote for Glass Fog Profile Suspension Insulators LXHP-70 / U70BP/ U70BLP
Send the quantity, the destination port and the standard you buy against. Routine test records ship with the goods and type test reports are available on request.