Cable Extension Bolt
A cable extension bolt reduces utility pole requirements by creating space for a second messenger cable on the pole. With these bolts you can securely mount a second cable on the same level and side as an existing cable.
Made of galvanized steel, extension bolts feature a threaded section on one end that allows the bolt to be threaded into a suspension bolt on the utility pole. Reinforcing straps can be used to support the extension bolt and ensure it is firmly anchored to the pole.
The extension bolts are designed to fit into the existing suspension bolt on the utility pole creating an offset extension where the second cable can be mounted and secured. In cases where the extension bolt is used in overhead service drops, accessories such span clamps and deadend drop clamps may be required for proper installation.
Cable extension bolts come in different sizes or lengths and with different accessories depending on the specific installation requirements. The length of the bolt will typically determine the length of the offset extension yielded for the second cable run.
Designed to facilitate easy installation, extension bolts are a cost effective means of creating space for additional cables on an existing utility pole.
Cable Extension Bolt Drawing
Frequently Asked Questions
How are cable extension bolts used?
A cable extension bolt is usually threaded onto a suspension bolt that is already on the pole where an additional cable run is needed. Once installed the extension bolt yields an offset extension where the second cable can be securely mounted. This allows for multiple cables to be mounted on a single pole at the same level and in the same direction.
How do I install an extension bolt?
To install a cable extension bolt the threaded end of the bolt is inserted and threaded into a suspension bolt on the pole. Just remove the nut on the existing suspension bolt and replace it with the threaded end of the extension bolt. Then attach the reinforcing strap to the pole and outside of the clamp to support the bolt and cable.
Which accessories are used with cable extension bolts?
During installation, reinforcing straps and suspension clamps may be needed to ensure that the suspension bolt and cable are securely anchored to the pole. The reinforcing straps reinforce the stability of the bolt especially over long spans with heavier loads. The straps are used alongside cable suspension clamps.