OMAC F149 4 Conductor Pulley

The OMAC F149 is a five-sheave running-out block fit for stringing four-bundled conductors, the quad-bundle arrangement common on high-voltage transmission lines. The centre sheave carries the pulling rope and running board, and two lateral sheaves either side carry the four sub-conductors.

The sheaves are aluminium on sealed ball bearings, with grooves lined in nylon sectors to protect the conductor surface, and the lateral sheaves carry non-fleeting devices. The galvanised steel frame hangs from a demountable attachment that revolves by 90°, available with a narrow wheel.

Sizes run from the F149.50.68 (Ø500 mm, 68 mm grooves, 40 kN, 140 kg) through 60 kN blocks at Ø650 and Ø800 mm, the F149.100.95 at 66 kN, up to the F149.120.130 with Ø1200 mm sheaves, 130 mm grooves, 100 kN and 545 kg. Larger diameters are available on demand.

Pair the F149 with OMAC F154 running boards for 4-bundle conductors. Options include aluminium-sector sheaves with grounding device and copper earthing cable for work near energised lines, a non-fleeting device between central and lateral wheels, a 95 mm centre groove on 68 mm models, and a stocking and transport cage.

Optional Devices

• Sheaves lined with aluminium sectors.
• Cage for stocking and transport.
• Grounding device (requires opt. 314).
• Non-fleeting device between central and lateral wheels.
• Copper cable 6 m long with PVC protection, tower clamp and terminal.
• Central sheave with 95 mm groove width (F149.xx.68 models).

Dimensions and weights are without optional devices.