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| ![]() DOE-STD-1044-93
LABEL PLACEMENT
Labels should be placed on or near the components being identified in a manner that clearly
associates the label with its respective component and removes any ambiguity. Labels on control
panels should be consistently placed above, below, or on components so that the operator is
conditioned to finding and identifying information accurately. However, even when labels are
placed consistently above or below components, the results can be confusing, as shown in Figure
C-1.
HS-7
HS-9
HS-10
NORM
BLOCK
SIAS MANUAL
SIAS
SIAS B
ACTUATION
RESET
BLOCK
CHAN B
CHAN B
HS-2
HS-4
HS-6
CNTMT ISOLATION
CNTMT SPRAY
RECIRCULATION
SIGNAL RESET
SIGNAL RESET
SIGNAL RESET
CHAN B
CHAN B
CHAN B
HS-18
HS-3
HS-11
CNTMT ISOLATION
CNTMT SPRAY
RECIRCULATION
MANUAL ACTUATION
MANUAL ACTUATION
MANUAL ACTUATION
CHAN B
CHAN B
CHAN B
HS-8
HS-1
HS-5
Figure C-1. Labels evenly spaced between components.
To accurately identify the correct label with each component in the portion of the control panel
illustrated above, the operator would be required to search for indications of the labeling system
used, by checking the top of the panel, the bottom of the panel, or a separate legend. This
increases the chance of identification errors.
Where control panels contain many rows or columns of equally spaced components and labels, the
facility can reduce the risk of misidentification by "connecting" the labels to the components they
identify using brackets or tie lines, as shown in Figure C-2.
C-3
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