E1934 (REAPPROVED 2024): STANDARD GUIDE
FOR EXAMINING ELECTRICAL AND MECHANICAL
EQUIPMENT WITH INFRARED THERMOGRAPHY
Infrared thermography (IRT) is a nonde-
structive testing technique that uses
infrared imaging to detect and measure
thermal energy emitted from objects.
This method captures temperature varia-
tions on the surface of equipment, which
can indicate underlying issues. Regular
thermographic inspections facilitate
better maintenance planning by identi-
fying issues before they lead to electrical
and mechanical equipment failures.
Methods for examining electrical equip-
ment include detecting overheating in
electrical components such as circuit
breakers, transformers, and switchgear,
which may indicate potential failures
or malfunctions. By catching abnormal
temperature patterns early, IRT helps
prevent equipment failures and reduces
the risk of electrical fires. In mechanical
equipment testing, identifying compo-
nents that are overheating due to exces-
sive friction or misalignment with IRT
helps prevent mechanical failures and
extends the lifespan of equipment. By
monitoring the thermal performance of
mechanical equipment, IRT helps ensure
that machines operate efficiently and at
optimal performance levels.
The most recent version of ASTM
E1934, released in the Book of Standards,
Volume 03.03, has been reapproved by
ASTM Subcommittee E07.10. This stan-
dard outlines the responsibilities of both
the end user and the infrared thermog-
rapher when inspecting electrical and
mechanical systems. It specifies what
should be included in the documentation
of qualitative and quantitative infrared
examinations. The guide covers the use
of equipment and materials near heated,
moving, or electrically energized compo-
nents. Users must establish proper safety,
health, and environmental practices and
identify any regulatory limitations before
using the equipment.
This guide serves as a resource for
end users to specify, and for infrared
thermographers to perform, infrared
examinations of electrical and mechan-
ical equipment. It outlines their shared
responsibilities and aims to identify
and document anomalies. In electrical
systems, warm anomalies usually result
from increased resistance due to loose
connections, short circuits, overloads,
load imbalances, or faulty components,
while cool anomalies indicate failed
components. In mechanical systems,
warm anomalies often arise from friction
due to improper lubrication, misalign-
ment, or worn components, whereas
cool anomalies indicate component
failure.
STANDARDS EDITOR
Hossein Taheri, PhD: Georgia
Southern University, Statesboro, GA
htaheri@georgiasouthern.edu
IN DEVELOPMENT
The following section provides a summary of
new standards, drafts, and revisions that may
be of interest to the nondestructive testing and
evaluation (NDT/E) community. This summary is
provided in Materials Evaluation on a quarterly
basis in January, April, July, and October. For the
latest information, please visit the website of the
standards provider.
PROJECT INITIATION
ANSI procedures require notification by ANSI-
accredited standards developers of the initiation
and scope of activities expected to result in
new or revised American National Standards.
The following is a list of proposed actions and
new standards that have been received recently
from accredited standards developers. To view
information about additional standards for
which a project initiation notification has been
submitted, and to search approved American
National Standards, please visit ansi.org, which
is a database of standards information. Note that
this database is not exhaustive.
Ñ BSR/AWS D17.4-202x, Specification for
Additive Friction Stir Deposition for Aerospace
Applications. This is a new standard. This
standard provides a process specification for
the AFSD process that can be followed for
purposes of creating and qualifying a depo-
sition procedure specification (DPS) that will
produce qualified components for aerospace.
It borrows some of the common language and
terminology from the existing AWS D17.3 and
AWS D20 specification but accounts for the
specific requirements for this additive manufac-
turing process. This standard would initially be
used by the aerospace community to certify the
process, but, like the AWS D17.3 specification, it
is anticipated that a larger community will use it
as a general AFSD process specification.
Ñ BSR/ADCI 01-202X, Commercial Diver Training
– Minimum Standard. This is a new standard
establishing a core curriculum to train entry-
level marine technicians and commercial divers
to assist in general operations in oceanographic
and commercial maritime enterprises and safely
carry out technical operations underwater.
Ñ BSR/UL 2278-202x, Standard for Safety
for Megawatt Charging Configured Electric
Vehicle Couplers. This is a new joint standard
SCANNER
|
STANDARDSUPDATE
16
M A T E R I A L S E V A L U A T I O N • J U L Y 2 0 2 4
FOR EXAMINING ELECTRICAL AND MECHANICAL
EQUIPMENT WITH INFRARED THERMOGRAPHY
Infrared thermography (IRT) is a nonde-
structive testing technique that uses
infrared imaging to detect and measure
thermal energy emitted from objects.
This method captures temperature varia-
tions on the surface of equipment, which
can indicate underlying issues. Regular
thermographic inspections facilitate
better maintenance planning by identi-
fying issues before they lead to electrical
and mechanical equipment failures.
Methods for examining electrical equip-
ment include detecting overheating in
electrical components such as circuit
breakers, transformers, and switchgear,
which may indicate potential failures
or malfunctions. By catching abnormal
temperature patterns early, IRT helps
prevent equipment failures and reduces
the risk of electrical fires. In mechanical
equipment testing, identifying compo-
nents that are overheating due to exces-
sive friction or misalignment with IRT
helps prevent mechanical failures and
extends the lifespan of equipment. By
monitoring the thermal performance of
mechanical equipment, IRT helps ensure
that machines operate efficiently and at
optimal performance levels.
The most recent version of ASTM
E1934, released in the Book of Standards,
Volume 03.03, has been reapproved by
ASTM Subcommittee E07.10. This stan-
dard outlines the responsibilities of both
the end user and the infrared thermog-
rapher when inspecting electrical and
mechanical systems. It specifies what
should be included in the documentation
of qualitative and quantitative infrared
examinations. The guide covers the use
of equipment and materials near heated,
moving, or electrically energized compo-
nents. Users must establish proper safety,
health, and environmental practices and
identify any regulatory limitations before
using the equipment.
This guide serves as a resource for
end users to specify, and for infrared
thermographers to perform, infrared
examinations of electrical and mechan-
ical equipment. It outlines their shared
responsibilities and aims to identify
and document anomalies. In electrical
systems, warm anomalies usually result
from increased resistance due to loose
connections, short circuits, overloads,
load imbalances, or faulty components,
while cool anomalies indicate failed
components. In mechanical systems,
warm anomalies often arise from friction
due to improper lubrication, misalign-
ment, or worn components, whereas
cool anomalies indicate component
failure.
STANDARDS EDITOR
Hossein Taheri, PhD: Georgia
Southern University, Statesboro, GA
htaheri@georgiasouthern.edu
IN DEVELOPMENT
The following section provides a summary of
new standards, drafts, and revisions that may
be of interest to the nondestructive testing and
evaluation (NDT/E) community. This summary is
provided in Materials Evaluation on a quarterly
basis in January, April, July, and October. For the
latest information, please visit the website of the
standards provider.
PROJECT INITIATION
ANSI procedures require notification by ANSI-
accredited standards developers of the initiation
and scope of activities expected to result in
new or revised American National Standards.
The following is a list of proposed actions and
new standards that have been received recently
from accredited standards developers. To view
information about additional standards for
which a project initiation notification has been
submitted, and to search approved American
National Standards, please visit ansi.org, which
is a database of standards information. Note that
this database is not exhaustive.
Ñ BSR/AWS D17.4-202x, Specification for
Additive Friction Stir Deposition for Aerospace
Applications. This is a new standard. This
standard provides a process specification for
the AFSD process that can be followed for
purposes of creating and qualifying a depo-
sition procedure specification (DPS) that will
produce qualified components for aerospace.
It borrows some of the common language and
terminology from the existing AWS D17.3 and
AWS D20 specification but accounts for the
specific requirements for this additive manufac-
turing process. This standard would initially be
used by the aerospace community to certify the
process, but, like the AWS D17.3 specification, it
is anticipated that a larger community will use it
as a general AFSD process specification.
Ñ BSR/ADCI 01-202X, Commercial Diver Training
– Minimum Standard. This is a new standard
establishing a core curriculum to train entry-
level marine technicians and commercial divers
to assist in general operations in oceanographic
and commercial maritime enterprises and safely
carry out technical operations underwater.
Ñ BSR/UL 2278-202x, Standard for Safety
for Megawatt Charging Configured Electric
Vehicle Couplers. This is a new joint standard
SCANNER
|
STANDARDSUPDATE
16
M A T E R I A L S E V A L U A T I O N • J U L Y 2 0 2 4