Other article of interest include Keith Bohn's “Tips for a Safe Outdoor Concert Season.” The article discusses the planning and management of of outdoor event structures and the considerations for weather-related loading. A nice tie-in to John Huntington's article.
Electrical safety is addressed by Richard Cadena in his Shadow, Light, and Truth column. His article “Grounding and Bonding Portable Generators and Stages" should be read by all that are involved in show production lest you become a victim of another person's mistakes. In a related article, he offers-up a brain-teaser about using three-phase power generators in a single-phase configuration. Just how much power can it really deliver?
All this can be found at: http://na.plasa.org/publications/protocol.html