What Is MARSHINE OPGW Cable Stretching Pulley?
The MARSHINE Galvanized Steel Frame OPGW Mounting Rollers Cable Stretching Pulley is a professional tool that used in the laying and pulling of Optical Ground Wire (OPGW) on overhead line. With a heavy-duty galvanized steel frame, this pulley is ideal for outdoor use and is resistant to rust and provides stability. It promotes good cable flow, minimizes friction and protects fiber optic cables during stringing and blowing operations.
Key Features
Galvanized Steel Frame: Offers high strength and corrosion resistance for long-term outdoor use.
Smooth Roller System: Minimizes friction and prevents damage to OPGW cables.
Cable Stretching Capability: Can handle both guiding and tensioning during stringing operations.
Precision Groove Design: Ensures proper seating of fiber optic cables without slipping.
Flexible Mounting Options: Suitable for installation on poles, towers, and cross-arms.
So How Can We Properly Use MARSHINE Cable Stretching Pulley?
Preparation Before Use
Safe and efficient operation can be ensured only with a correct preparation：
Check the Pulley System
Look for any cracks, deformations, or rust on the frame and rollers.
Achieve Smooth Rotation
Make sure the sheaves can spin smoothly without any barrier.
Check Cable Compatibility
Before purchasing make sure the groove size fits the diameter of OPGW cable.
Check The Mounting Hardware
Ensure all clamps, bolts and brackets are tightly fastened.
Get The Installation Path Ready
Remove the obstacles and keep the line of two points you want to install.
Wear Safety Equipment
Helmets, gloves and fall arrest when working at height.
Installing the Pulley
Choose the Installation Points
Install your MARSHINE Galvanized Steel Frame OPGW Mounting Rollers Cable Stretching Pulley at critical points (pol es, towers, or cross-arms) along the cable run.
Make sure the location is compatible with the run of the cable to help reduce bending stress.
Secure the Pulley
Secure the pulley tightly with suitable mounting brackets or clamps.
Tighten all the bolts for a stable running.
Level the Pulley
Make sure the roller is level with the other rollers and the path of the cable.
Correct alignment will lessen friction, and prevent twisting of the cable.
Running the OPGW Cable
After the pulley system is set up:
Lift And Position The Cable
After you have used the protective gloves and other equipment to secure the OPGW cable, you can start to use the lifting tools or the cable drum system to pull the OPGW cable into place.
Put The Cable Around The Roller
Make sure the cable is correctly seated in the groove of the roller or sheave.
Start The Pulling
Utilize a winch or other pulling equipment to draw the cable along the pulleys.
Turn on controlled tension.
Effect controlled tension gradually (stretch cable as required) keeping within limits of safety.
Follow The Cable Movements
Closely watching the cable as it pulls, you’ll want to keep an eye out for any snags, mild or severe friction.
Make adjustments if necessary.
Pause and readjust if you feel any resistance, misalignment, or unusual motion.
