Over the years I spent as a lineman, I did my share of underground installation and maintenance work. During my years in safety, I have seen the expansion of safety processes associated with underground, especially in response to the most recent OSHA changes. Not all of the changes have been effective, and that’s why we’re now going to spend some time addressing several underground safety questions Incident Prevention frequently receives. We’ll look at the rules and practices and what works from a practical perspective.
Handling URD Neutrals
This will not come as news to most of you, but for more than 60 years we have been splicing URD concentric neutrals during underground repairs without isolating the neutral or bonding across the open neutral in the ditch. That is something no lineworker would do on an overhead neutral, yet hardly any readers will be able to recall a time when someone was injured making neutrals in URD. Now, as OSHA’s language and expectations are more defined regarding grounding for personal protection, industry better recognizes current flowing in grounded systems, and employers are looking for ways to create equipotential and grounding during underground maintenance. For the most part, it’s not going well. The two questions I hear most are, why should we ground and how do we do it?