Safety is a primary concern during troubleshooting. Know the hazards you are dealing with and their locations. Make sure that you are on the right equipment. Follow your facility's safety procedures, but remember that these represent minimum standards. If you need more, ask for more. Use your facility's permit system. Your company should be concerned about your safety, facilitate it, and provide a safe working environment; but in the end, it is your responsibility to ensure your own safety. Make your decisions wisely.