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Vegetation Management

Ensuring you have adequate vegetation clearance from power lines has always been important, but lately there seems to be more pressure on power companies to ensure they are in compliance. This is due to extensive property damage from fires or major power outages caused by trees hitting power lines. Historically, the process of just taking field measurements to simply identify danger trees has been expensive and extremely time consuming.

Laser rangefinder measuring vegetation clearance
TruPulse Laser Rangefinder
Measuring Vegetation Clearance

You could pay for flyovers but it can be expensive and the service may not be even available during the time of year that you need it. According to the final report issued by the U.S.-Canada Power System Outage Task Force, one of the main causes of the August 2003 blackout was the failure to adequately manage tree growth within a transmission line's right-of-way.

The report also suggests that "fly-overs do not allow effective identification of the distance between a tree and the line above it, and needs to be supplemented with ground patrols." If you need to rely on ground patrol, what do you use then? You can either use surveying equipment that is bulky and tedious, or a recreational rangefinder that isn’t very reliable.

Meet THE vegetation management solution. With the revolutionary technology in the TruPulse 360, you decide exactly how and where you want to shoot from. Due to its superior optics and reflectorless capabilities, this unique laser rangefinder can obtain measurements aiming directly to the conductor. This shouldn't be taken for granted because not all lasers can recognize such a small target. It can fit inside a vest pocket and offers Bluetooth® capabilities for wireless data collection, which makes this laser extremely field friendly.

Add LTI's LaserSoft Measure App you now have the power to capture and record measurements of your scope shots into images with each shot all from your smartphone.

There are a few easy measurement routines you can do that can verify the distance from a conductor to encroaching vegetation or determine if a tree has the potential to hit a conductor if it were to be knocked over – all without requiring additional software.

Laser Technology Vegetation Management

Recommended Routine 1: If you position yourself between the conductor's path and encroaching vegetation, you can use the built-in Missing Line (ML) routine. You can take your first shot to an encroaching branch and the second shot directly to the conductor. Scroll through the measurement results until you see the slope distance value seen as SD within the sighting scope.

Recommended Routine 2: Position yourself where you have a clear line of site to the base and top of the tree and the spot on the conductor that is perpendicular to a tree. Use the onboard 3-shot routine that measures the horizontal distance, as well as the top and base angle, to calculate the height of the tree. Remember or manually record this value. Toggle into Missing Line (ML) mode and reshoot the base of the tree for your first shot and the area on the conductor that is perpendicular to the tree for the second. Scroll through the measurement results until you see the slope distance value seen as SD within the sighting scope. If the SD value is less than the tree height, you have just identified a danger tree.

Check out this article on how our measurement technology aids in vegetation management - one of the hot topics in the industry.

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