Lightning safety

SITE SAFETY — GENERAL — LIGHTNING SAFETY HANDOUT-1... 

Site Safety — General — Lightning Safety Sign-Off Sheet... 

National Lightning Safety Institute, Lightning Protection for Engineers, Louisville, CO, 2012. 

The National Lightning Safety Institute recommends that all businesses, and especially those that typically have workers with outdoor jobs, prepare and distribute a lightning safety plan to all their employees. The core of the plan is to anticipate a high-risk situation and move to a low-risk location. These plans should be site-specific, but they all share a common outline ... 

According to the same Boeing report, the hull loss accident rate is 1.59 accidents per million departures. This means that if you flew twice a day, it would be 2,178 years before you were involved in a hull loss accident, on average. The odds of being involved in a hull loss accident are considerably less than the odds of being struck by lightning (estimated at 1 280,000 by the US National Lightning Safety Institute). 

Job Safety Laser Safety Lightning Safety Manufacturing Safety Marine Safety (Shipping)... 

Lightning safety covers those safety aspects involved with the effects of lightning on personnel, systems, and equipment. 

I-3.6.2 Electronic control, monitoring, and hydrogen gas measurement equipment shall be properly grounded and isolated from piping to help prevent overpressure/ accidental shutoff situations caused by equipment failure due to lightning strikes and electrical transients and to prevent safety hazards caused by fault currents. Electrical isolation equipment for corrosion control purposes should not be installed in buildings unless specifically designed to be used in combustible atmospheres. 

The decision to provide protection may be based primarily on one factor alone. Some possible single factors can be personnel safety requirements, reduced insurance rates, or to meet an imposed lightning protection code. 

Safety equipment—fire alarm, burglar alarm, lightning and other static arresters... 

The investigation of a serious event frequently shows that a similar accident had occurred before, but that one item in the chain of events was not in place. For example, at one facility, certain critical safety valves were known not be reliable. If they did not close properly, large quantities of flammable gas would vent to the atmosphere. This event had occurred a number of times over a period of years with no serious consequence. However, one particular release occurred during a lightning storm. The lightning lit off the gas the subsequent fire initiated a train of events that resulted in a serious explosion. 

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