511 EM 385-1-1 Chapters 9-15

Sections

11-6. Activity Hazard Analysis (AHA) Requirements.

Development of AHAs

Develop Activity Hazard Analyses (AHAs) as per the relevant paragraphs, ensuring the inclusion of tasks, number of people, and safety measures for electrical equipment work.

Electrical Safety in AHAs

Identify electrical hazards, boundary distances, and include both shock and arc flash risk assessments for tasks posing such hazards.
Document Health, Environment, and Control (HEC) procedures like Lockout/Tagout (LOTO), clearance, and switching, along with Electrical Personal Protective Equipment (PPE) requirements.
Address health and environmental considerations, particularly for hazardous materials and challenging environments.

Operational Procedures and Emergency Preparedness

Ensure the use of Elevated Work Platform Equipment (EEWP) when required, and implement personal insulating and grounding methods.
Prepare temporary power system sketches, obtain approval from the Authority Having Jurisdiction (AHJ), and identify competent persons for rescue and emergency medical situations.
Outline emergency procedures, especially when the "two-person rule" is applicable, and manage access to restricted locations with documented approval attached to the AHA daily.

Knowledge Check Choose the best answer for the question.

11-7. Emergency procedures should be outlined in an electrical AHA, especially when _____.

using insulating and grounding methods

health and environmental hazards are considered

electrical hazards are identified

the "two-person rule" is applicable

You forgot to answer the question!

EM 385-1-1 Paragraph 11-6.

11-6. Activity Hazard Analysis (AHA) Requirements.

Develop AHAs according to paragraphs 1-6 or 2-6, as applicable.  When work is performed that meets the definition of working on electrical equipment, or for activities near enough to expose employees to any electrical hazard they present, include the following in the AHA:

a.  Tasks and the number of people needed to safely complete the work.  (11-6.a)

b.  Identification of the electrical hazards and boundary distances associated with each task. (11-6.b)

c.  A shock risk assessment according to paragraph 11-8.b(1) for tasks involving a shock hazard. (11-6.c)

d.  An arc flash risk assessment according to paragraph 11-8.b(2) for tasks involving an arc flash hazard.  (11-6.d)

e.  HEC (for example, LOTO), clearance, and switching procedures (see chapter 12).  (11-6.e)

f.  Electrical PPE (see chapter 5).  (11-6.f)

g.  Health considerations (for example, asbestos, polychlorinated biphenyl). (11-6.g)

h.  Environmental considerations, such as wet locations.  (11-6.h)

i.  Use of EEWP, as required.  (11-6.i)

j.  Personal insulating and grounding methods.  (11-6.j)

k.  Temporary power system sketches and AHJ’s acceptance documentation. (11-6.k)

l.  Competent Persons (rescue, QP, first aid/CPR, AED, contact release).  (11-6.l)

m. Emergency procedures when “two-person rule” (see 1910.269) is in effect (see paras 11-3(d) and 11-8.e(3)).  (11-6.m)

n.  Restricted access locations (for example, substations, vaults).  Following the acceptance of an AHA, the contractor must ensure approval for entering restricted access locations is documented and attached to the AHA daily.  (11-6.n)