How do you make communications systems safe?
Find more from this series on Grounding vs Bonding
All Code references are based on the 2005 NEC. The grounding and bonding requirements in this column apply to solidly grounded systems that operate at not more than 600V, including 120/240V, 120/208V, and 277/480V. It's late Friday afternoon, and you're looking forward to the weekend, imagining what you'll be doing in just about an hour. Then suddenly the ringing of your cell phone jars you back to