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September 2011
11/07/2011
Analysis of EFCOG Electrical Safety Charts
for September 2011
The Overall DOE chart for 08J Electrical Near
Miss is showing an increase with August above the UCL.
Also, the past six months have been
above average, a seventh month will be a second flag of an
increasing trend.
There is a nearly significant increase
in 08A Electrical Shocks for September.
There was a nearly significant
increase for total events in August.
There were five electrical shocks at SC for
September.
This is the highest monthly number
ever, and is above the UCL.
Electrical Near Misses (08J) were near
the UCL in September also.
This caused a significant increase
(above the UCL for September, and also two standard deviations
above average for August).
A new baseline has
been established on the EM 08J Electrical Near Miss chart.
Originally, a decreasing trend was
seen for November 2010 to May 2011, but the data returned to
normal.
By including more data (25 months) in
the baseline, the decreasing trend was removed, and it appears
that the trend occurred due to too few points in the initial
baseline.
The total number of electrical events,
and 08A electrical shocks remains stable at EM.
The NA 08J Electrical
Near Miss has generated a significant increasing trend, with July
and August at two standard deviations above average with 4 reports
each.
The total number of electrical events,
and 08A electrical shocks remains stable at NA.
The top causes over
the past 12 months remain the same.
They are
A3B1C01 - Check of work was LTA
A3B1C03 - Incorrect performance due to
mental lapse
A4B3C08 - Job scoping did not identify
special circumstances and/or conditions
The second and third place causes did swap
spots in the chart update.
Raw Data Sheet
Electrical Events ORPS by
Month All DOE
08A Electrical Shocks ORPS by
Month All DOE
08J Electrical Near Miss ORPS by
Month All DOE
08J Electrical Near Miss - Top 7
Causes, All DOE
Electrical Events
ORPS by Month SC Program Office
08A Electrical Shocks ORPS by
Month at SC Program Office
08J Electrical Near Miss ORPS
by Month SC Program Office
Electrical Events ORPS
by Month NA Program Office
08A Electrical Shocks ORPS by
Month at NA Program Office
08J Electrical Near Miss ORPS
by Month NA Program Office
Electrical Events ORPS
by Month EM Program Office
08A Electrical Shocks ORPS by
Month at EM Program Office
08J Electrical Near Miss ORPS
by Month EM Program Office
Steven S Prevette
Fluor Government Group
Savannah River Nuclear Solutions
Steven.Prevette@srs.gov
Trending Home Page:
http://www.efcog.org/wg/esh_es/Statistical_Process_Control/index.htm
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