INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
Electrotechnical terminology: examples
and explanatory notes
v3
Joanna Goodwin
Terminology Coordinator
© IEC:2007
Example 1
731-01-04
light
visible radiation
any optical radiation capable of causing a visual
sensation directly on a human being
IEV entry number
2 preferred (terms)
representations
Note 1 to entry: Nominally covering the wavelength in
vacuum range of 380 nm to 800 nm.
definition
2 notes to
entry
Note 2 to entry: In the laser and optical communication
fields, custom and practice in the English language have
extended usage of the term light to include the much
broader portion of the electromagnetic spectrum than
can be handled by the basic optical techniques used for
the visible spectrum.
2
Example 2
entry number
3.13
1 preferred, 1 admitted & 1
puissance rayonnante, f
deprecated (term)
representation
flux énergétique, m
DÉCONSEILLÉ: puissance optique, f
gender
dérivée de l'énergie rayonnante par rapport
definition
au temps
3
Example 3
IEV entry number
121-11-39
Ei
electrization
vector quantity equal to the electric
polarization P divided by the electric
constant ε0
2 preferred representations
[symbol (same for en and fr)
and term (en only)]
definition
No preferred term (fr)
…..
grandeur vectorielle égale au quotient de la
definition
polarisation électrique P par la constante
électrique ε0
Ei 
P
0
non-verbal rep.
(common to en and fr)
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Example 4
entry number
3.1.14
1 preferred & 1 admitted
socket-style connector
representation
fixed connector
connector for which the adapter (3.1.13), including
definition which
any alignment device, is integrated with and
refers to other
permanently attached to the connector plug
concepts
(3.1.12) on one side of the connection
EXAMPLE Examples include the SG and many
harsh environment connectors.
example
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Example 5
entry number
3.2.1
CDR
2 preferred (abbr. form
compensateur de dispersion réglable
& term) & 2 admitted
compensateur de dispersion chromatique
(term & abbr. form)
dynamique
representations
CDCD
dispositif à deux ports alignés capable de
definition
transformer, par une commande automatique
interne ou externe, un signal d’entrée avec une
dispersion variable dans le temps, en un signal de
sortie pour lequel une valeur de dispersion de
canal de transmission de sortie est établie pour
un niveau requis de valeur
[SOURCE: IEC 62343:####, modifiée ̶ L’ordre
de préférence des termes a été modifié aux fins
d’illustration. ]
source entry
modified;
describe &
provide reason
6
Example 6 (1)
732-06-01
IEV entry number
pare-feu, m
3 preferred representations
barrière de sécurité, f
coupe-feu, m fr CA
gender, country code
unité fonctionnelle qui s’interpose sur tout
definition
le trafic passant entre deux réseaux et
protège l’un d’eux, ou une partie de l’un
d’eux, contre tout accès non autorisé
VOIR: Figure #.
Note 1 à l’article: Le réseau (732-01-01) protégé
est généralement un réseau privé interne à un
organisme.
non-verbal rep.
1 note to
entry
Entries 732-06-01, 732-06-02, 732-06-03, 732-06-04 and
732-06-05 all refer to the same figure, i.e. a “shared” non-verbal
representation: prefix cross-reference by “SEE:” / “VOIR:”
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Example 6 (2)
“Shared” non-verbal representation for entries 732-06-01, 732-06-02,
732-06-03, 732-06-04 and 732-06-05:
Légende / Key
BH: Passerelle hôte filtrée
Bastion host
SR: Routeur de filtrage
Screening router
Figure # — Firewall / Pare-feu
8
Example 7
entry number
201.3.214
password
1 preferred representation
<radiotherapy> sequence of keystrokes
domain (standards)
that permits operator access for normal use
or to reset interlocks and, with a different
definition
sequence of keystrokes, permits access for
adjustment and maintenance
source
[SOURCE: IEC 60601-2-1:2009]
9
Example 8
entry number
3.1
pop
air pressure at which the PDP
module is operated during the tests
[SOURCE: IEC 61988-4:2007,
definition 3.1]
preferred representation
(symbol)
definition
source
10
Example 9
IEV entry number
731-02-13
g
profile parameter
DEPRECATED: α
parameter defining the shape of a
power-law index profile
2 preferred
representations (symbol
and term) & 1 deprecated
representation (symbol)
definition
11
Example 10
Entry number
3.51
1 preferred representation (term)
alert, verb
part of speech
to forward a binary variable (IEC 60050definition
351:2006, 351-21-12) which is obtained by
which
monitoring and to indicate it in an especially
refers to
striking way
another
concept
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Example 11
102-05-28
Laplacian, <of a scalar field>
IEV entry number
1 preferred representation (term)
scalar ∆ f associated at each point of a given
space region with a scalar f, equal to the
divergence of the gradient of the scalar field
∆ f = div grad f
specific use (IEV)
Note 1 to entry: In orthonormal Cartesian coordinates,
the Laplacian of a scalar field quantity is:
definition
non-verbal rep.
3 notes to
entry
Note 2 to entry: The Laplacian of the scalar field f is
denoted ∆ f or
, where ∆ is the Laplacian operator.
Note 3 to entry: The Laplacian of a vector field is
defined in 102-05-29.
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