When Crane Tech hears of crane accidents involving power lines, such as the one that left nearly 5,000 Carlsbad residents without electricity for several hours last week, we think beyond the impact of losing power. Our thoughts go to the safety of those involved and we consider how the accident may have been avoided. Over the next several weeks, we are going to look at considerations that may save lives and help you safely manage the very real threat of electrocution. 

Between 1992 and 2006, there were 102 construction workers who died as a result of overhead power line electrocutions. As a result, OSHA released an updated construction standard (1926 Subpart CC, Sections 1407 to 1411) to help stem this tide of senseless deaths.

One of the most significant changes OSHA made in 1926 Subpart CC was to provide a basic minimum approach distance to energized overhead power lines of 20 feet. Gone is the 10-feet for up to 50kV. 

Instead, OSHA states the minimum approach distance for up to 350kV is 20 feet and for over 350kV is 50 feet. 

This does not mean that you cannot work closer than the 20- or 50-foot distance, it does mean that should you need to work closer to energized lines, you must follow designated safety measures to get there. As a result, next week we will look at the regulations that address working in close proximity to power lines and the requirements for encroachment.

So, dare we ask? When was the last time you really considered the requirements for power line safety and minimum working distance?