Let’s explore a few of the more significant changes proposed for the annexes.
The text may be paraphrased due to
space limitations, and, as always, there
is a possibility of additional changes
between when this article was written
and when the standard is published.
Annex A, Informative Publications:
Since references to standards such ASTM
and ANSI have moved from the mandatory language to informational notes,
similar changes were made to annexes A
and B. They were combined into Annex A
and renamed “Informative Publications.”
Annex A reads, “The following documents
or portions thereof are referenced within
this standard for informational purposes
only and are thus not part of the requirements of this document.”
Annex B, Reserved: Annex B is now
listed as “Reserved.”
Annex F, Risk Assessment and Risk
Control: Previously titled “Risk Assessment Procedure,” this annex has been
revised and reorganized as follows:
F. 1 Introduction to Risk Management
F. 2 Relationship to Occupational Health
and Safety Management Systems
F. 3 Hierarchy of Risk Control
F. 4 Hazard-Based Risk Assessment
F. 5 Task-Based Risk Assessment
F. 6 Risk Assessment Methods
Annex H, Guidance on Selection of
Protective Clothing and Other Personal Protective Equipment (PPE):
H. 4 Conformity Assessment of PPE
was added. Section 130.7(C)( 14) now
requires PPE to conform to appropriate product standards. This annex
references ANSI/ISEA 125, American National Standard for Conformity
Assessment of Safety and Personal Protective Equipment, and provides three
levels of conformity assessment.
Level 1 conformity is where the
supplier or manufacturer is making a
self-declaration that a product meets all
of the requirements of the standard(s)
to which conformance is claimed. For
Level 2 conformity, the supplier or
manufacturer also has a registered ISO-
9001-quality management system or
equivalent quality management system,
and all testing has been carried out by an
ISO-17025-accredited testing laboratory.
For both levels, the supplier declaration
of conformity is required to be made
available for examination upon request.
Level 3 conformity is where products
are certified by an ISO-17065-accredited,
independent, third-party certification
organization (CO). The CO directs all
product testing and must review or retest
all changes to the product if necessary.
Compliant products are issued a declaration of conformity, and products are
marked with the CO’s mark or label.
H. 4. 3, Equivalence, states the conformity levels are not equivalent to each
other and the level or rigor required to
demonstrate conformity should be based
on the potential safety and health consequences of using a product that does not
meet a stated performance standard.
H. 4. 4, Supplier’s Declaration of
Conformity, defines the minimum
requirements that should be part of the
declaration of conformity.
Annex K, General Categories of
Electrical Hazards: This annex was
greatly expanded, and many new statistics were added.
K. 2, Electric Shock, states that electrical injuries are more often fatal than
many other injury categories. For example, from 2003 to 2009, there were 20,033
electrical injuries, of which 1,573 were
fatalities, totaling one fatality for every
12. 74 electrical injuries.
K. 3, Arc Flash, references information
from 29 CFR Subpart V, which identified
99 injures that involved burns from arcs
resulting in 21 fatalities and 94 hospitalized injuries from 1991 through 1998. It
also provides other statistics regarding
electric shock and burn injury.
Annex O, Safety Related Design
Requirements: Several revisions and
additions are made to this annex, including the following:
• O. 2. 3, Incident Energy Reduction
Methods: Shunt trip was added as
an eighth method for incident energy
• O. 2. 4, Additional Safety by Design
2018 NFPA 70E annexes
Methods: This is a new list of meth-
ods that have proven to be effective in
reducing the risk associated with an
arc flash and shock hazard. The list
includes methods such as finger-safe
components, arc-resistant equipment,
remote racking and remote operation.
Annex Q, Human Performance
and Workplace Electrical Safety: This
new annex addresses how the concept
of human performance can be applied
to workplace safety. Studies by high-risk
industries indicate human error is often
a cause of incidents. The premise of this
annex is that human error is a frequent
cause of electrical incidents.
Called ‘Informative’ on Purpose
A SIGNIFICANT NUMBER OF PAGES IN THE 2018 EDITION of NFPA 70E are
devoted to 17 informative annexes. Although technically not part of the mandatory
text, these pages can be an important source of additional information and guidance.
PHILLIPS, P.E., founder of www.brainfiller.com and www.ArcFlashForum.com, conducts
training programs globally and is the author of the book “Complete Guide to Arc Flash
Hazard Calculation Studies.” He is vice chair of the IEEE 1584 Arc Flash Working Group and
International Chair of IEC TC78 Live Working. He can be reached at firstname.lastname@example.org
and 800.874.8883. S H