Gen 2 — polymer line post insulators for 15–46 kV and 46–69 kV distribution lines (Universal Trunnion)
Gen 2 polymer line post insulators are designed for distribution and subtransmission lines of the 15–46 kV and 46–69 kV classes. The design has an epoxy fiberglass core, a silicone sheath and a PST sealing system without RTV coating. The universal trunnion replaces separate trunnion clamps and ties.
- Classes
- Gen 2 15–46 kV (10 series horizontal and vertical, 20 series F-neck); Gen 2 46–69 kV
- Mechanics
- STL 5000 lb (22.2 kN), SCL 2800 lb (12.5 kN), MDCL 1350 lb (6.0 kN)
- Example (Universal, 15 kV)
- creepage distance 12.2″ (310 mm), dry arc distance 6.2″, weight 3.6 kg
- Example (F-neck, 69 kV)
- creepage distance 51.5″ (1308 mm), weight 8.0 kg
Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.
Description
Second generation (Gen 2) polymer line post insulators are designed for distribution and subtransmission lines. The Gen 2 15–46 kV family covers horizontal and vertical insulators of the 10 series and insulators of the 20 series with an F-neck. The Gen 2 46–69 kV family is a new development of line post insulators for the 46–69 kV classes. The insulators were designed and tested to meet ANSI C29.18 and CSA C411.6.
The manufacturing technology proven on transmission insulators is used: an epoxy fiberglass core, a silicone sheath with enhanced hydrophobicity and a PST (primary, secondary, tertiary) watertight sealing system without RTV coating. The end fitting is crimped onto the core under pressure. The insulators are supplied with a ¾″-10 stud or with an aluminum gain base. For the line side there are aluminum end fittings with a universal trunnion, drop tongue and F-neck, and a tin-plated hardware option is also offered.
The universal trunnion is a single part for any application and replaces separate trunnion clamps and ties. The conductor range is adjustable within 0.2–1.3″ (5.1–34 mm) with one bolt, hot-stick operation is possible, and the wide jaw accommodates large line angles.
The rated tensile load STL is 5000 lb (22.2 kN), the cantilever SCL is 2800 lb (12.5 kN) and the working cantilever MDCL is 1350 lb (6.0 kN). For example, the universal insulator of the 15 kV class has a creepage distance of 12.2″ (310 mm) with a weight of 3.6 kg, the 35 kV class 24.4″ (620 mm) and the 46 kV class 31.4″ (798 mm). The F-neck insulator of the 69 kV class has a creepage distance of 51.5″ (1308 mm) with a weight of 8.0 kg. Gen 2 1.75″ insulators are also produced.
In the catalog number, code 40 denotes a ¾″ stud, 42 a ⅞″ stud and 90 a gain base. The line end fitting is coded UO (universal), 20 (horizontal trunnion), 60 (vertical trunnion) and 70 (F-neck). Some options may be limited by the core diameter.
Technical specifications
| Classes | Gen 2 15–46 kV (10 series horizontal and vertical, 20 series F-neck); Gen 2 46–69 kV |
|---|---|
| Mechanics | STL 5000 lb (22.2 kN), SCL 2800 lb (12.5 kN), MDCL 1350 lb (6.0 kN) |
| Example (Universal, 15 kV) | creepage distance 12.2″ (310 mm), dry arc distance 6.2″, weight 3.6 kg |
| Example (F-neck, 69 kV) | creepage distance 51.5″ (1308 mm), weight 8.0 kg |
| Base | ¾″-10 stud or aluminum gain base |
| Hardware | universal trunnion (conductor 0.2–1.3″, 5.1–34 mm), drop tongue, F-neck; tin-plated option |
| Sealing | PST (primary, secondary, tertiary) without RTV |
| Standards | ANSI C29.18, CSA C411.6 |
Request a price and lead time
Gen 2 — polymer line post insulators for 15–46 kV and 46–69 kV distribution lines (Universal Trunnion). We reply within one business day.
Or email sales@usk.ua or call 044 339-50-20.
Questions and answers
What mechanical loads do Gen 2 insulators have?
The tensile load STL is 5000 lb (22.2 kN), the cantilever SCL is 2800 lb (12.5 kN) and the working cantilever MDCL is 1350 lb (6.0 kN).
Which voltage classes are Gen 2 insulators supplied for?
The Gen 2 15–46 kV family includes horizontal and vertical 10 series insulators and 20 series insulators with an F-neck. The Gen 2 46–69 kV family is designed for the 46–69 kV classes.
Which standards were the insulators tested to and how are they mounted?
They comply with ANSI C29.18 and CSA C411.6. Mounting is by a ¾″-10 stud or an aluminum gain base.
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