Electrical Hazard Analysis

The theme of risk analysis has been recognized by an electrical short segment of the electricity sector for many years. The petrochemical industry and many government institutions have conducted research on this issue for over twenty years. For most, however, the electrical industry, at least at the user level, has largely ignored the issue, essentially reacting to catastrophic incidents, rather than proactively trying to predict and prevent them. Recent changes in the standards of consent, along with a better overall understanding of the seriousness of electrical hazards have resulted in a renewed interest in the subject. This article provides an overview of the three main types of analysis of electrical hazards, along with a discussion of the rules and regulations pertaining to the subject
Shock Hazard Analysis
Every year several hundred workers died due to accidental contact with live parts. Surprisingly, more than half of those killed are not traditionally electric fields (ie, linemen, electricians, technicians, etc.), but from related fields, such as painters, laborers and drivers. Recent investigations into the causes of these deaths causal principle point to three factors:
• Failure to properly or completely de-energize the previous systems maintenance and repair;
• intentionally work on energized equipment, and
• Improper grounding or inadequate electrical system components.
These three factors form the basis for the analysis of the dangers of electric shock.
To properly assess the risk of electric shock associated with any type of maintenance or repair work, you must evaluate the procedures and work practices that will be involved. These practices must be assessed against both the regulatory requirements and best practices recognized in the industry. Remember, you can see (with OSHA), and die. These principles are summarized below