ELECTRICAL SAFETY EQUIPMENT AND PPE
Earthing and operating insulating sticks for switchgear and overhead lines up to 110 kV, 30 kV operating sets
Country: Germany · Model: Earthing sticks
Earthing and operating insulating sticks made of yellow fibreglass polyester tube for switchgear and overhead lines up to 110 kV have an insulating part of at least 500 mm. The earthing stick is used to apply the line clamps of portable earths to de-energised parts, and the operating stick to switch and test live parts.
- Solid earthing sticks
- 1038–3538 mm, Ø 33 / 43 mm
- Telescopic earthing sticks
- 1925–5925 mm
- Two-section sticks with suspension point
- 4625–8225 mm, working height up to 9 m, 29.6 kA / 1 s
- Minimum insulating part
- 500 mm
Technical specifications
| Solid earthing sticks | 1038–3538 mm, Ø 33 / 43 mm |
|---|---|
| Telescopic earthing sticks | 1925–5925 mm |
| Two-section sticks with suspension point | 4625–8225 mm, working height up to 9 m, 29.6 kA / 1 s |
| Minimum insulating part | 500 mm |
| 30 kV operating sets | 9 elements, length up to 5.02 m, element up to 1 m |
| Insulating sticks | 30 kV (Li 525 mm), 110 kV (Li 1300 mm) |
| Stick with saw | up to 36 kV, working height 2.9–8.9 m |
| Material | fibreglass polyester tube |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The modular system makes it possible to configure a stick for the customer's task. The earthing stick consists of a handle, an insulating part, a black ring and a working head with a roller or bayonet lock for clamps with a spindle and a cross pin. Solid sticks of 1038–3538 mm have a diameter of 33 or 43 mm, and versions with a fixed P4D or P9D clamp stay at the work site and clearly mark the short-circuited section. Telescopic sticks of 1925–5925 mm, including those with fixed P7D and P8D clamps, are used to install earthing at great height, for example on overhead line towers. The two-section stick for outdoor switchyards has an aluminium upper part with a permanent line clamp that lowers the connection point to about 4.5 m. It is rated for a short-circuit current of 29.6 kA for 1 s with a 150 mm² cable, is 4625–8225 mm long, gives a working height up to 9 m and works with shorter cables. Wall holders and bags are available for storage.
How to choose
First the type of work is determined, because earthing sticks carry the clamps of portable earths while operating sticks are intended for switching and testing. For low connection points a solid stick is enough, on overhead line towers a telescopic one is used, and in outdoor switchyards a two-section stick with a suspension point. The 30 kV operating set is suitable for indoor and outdoor installations, including in rain and snow. Absence of voltage before applying the earth is checked with a KP-Test 5 detector for 1–36 kV.
Request a price and lead time
Earthing and operating insulating sticks for switchgear and overhead lines up to 110 kV, 30 kV operating sets. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What does the 30 kV operating stick set include?
Nine elements: a handle, an insulating part with a protective disc and a red ring, up to three extensions, two switching heads, working heads and a universal head. The assembled set is up to 5.02 m long with a transport length of 1 m.
What is the insulating part of the 30 and 110 kV sticks?
The 30 kV stick has an insulating part of 525 mm and the 110 kV stick 1300 mm. Both are used only without rain and snow.
Which stick is used to cut branches near live parts?
A telescopic stick with a saw, rated for work near live parts up to 36 kV at a height of 2.9–8.9 m.
What does the black ring on an earthing stick indicate?
The black ring indicates the required safe distance. The minimum insulating length is chosen by the nominal voltage of the installation, but it is never less than 500 mm.
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Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.