The stringing blocks with grounding rollers are installaed on the tension tower for releasing the induced current on the overhead transmission line during the stringing operation.
Stinging Blocks with Grounding Roller System
We are the leading and biggest manufacture of stringing blocks in China. We design and manufacture all kinds of stringing blocks and rollers according to customer's requirement. Grounding rollers are widely used on our stringing blocks, they are optional for installation on most of our products.
We start to produce them from 30 years ago.
Item No. | Model | O. D. of Sheave (mm) | Sheave Width (mm) | No. of sheaves |
10301 | SHD508D | Φ508 | 75 | 1 |
10302 | SHS508D | 3 | ||
10303 | SHW508D | 5 | ||
10311 | SHD660D | Φ660 | 100 | 1 |
10312 | SHS660D | 3 | ||
10313 | SHW660D | 5 | ||
10314 | SHQ660D | 7 | ||
10315-1 | SHD822D | Φ822 | 110 | 1 |
10315-3 | SHS822D | 3 | ||
10315-5 | SHW822D | 5 | ||
10315-7 | SHQ822D | 7 | ||
10316-1 | SHDN916D | Φ916 | 110 | 1 |
10316-3 | SHSQN916D | 3 | ||
10316-5 | SHWQN916D | 5 | ||
10316-7 | SHQ916D | 7 |
Features: The stringing block is attached with a aluminum pressure roller which maintains continuous grounding by means of a grounding copper wire. (copper wire included).
Note: Other specification of stringing block is as same as "the stringing block of large diameter".
Single Aluminum sheave Stringing blocks with grounding rollers
Single sheave stringing blocks with grounding rollers for single conductor or OPGW
Three sheaves stringing blocks with grouding rollers for two or three bundled conductors
Five sheaves conductor stringing blocks with grounding rollers for 4 bundled conductors
Seven sheaves stringing blocks with grounding rollers for 6 bundled conductors
Helicopter stringing blocks with grounding rollers
We can also install grouding rollers on helicopter stringing blocks
Single sheave helicopter blocks with grounding rollers
Three sheaves helicopter blocks with grounding rollers
The grouding rollers can be shipped with stringing blocks (installed on the stringing blocks) or shipped seperately in the plywood case.
