Proposal Page Number:
1
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SC
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135
/ED
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14
Change Proposal Form Rev
G
RTCA SC
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135 and EUROCAE WG
-
14
Change Proposal Form
(One major comment per form.
)
(
Shaded blocks for committee use only.)
SC
-
135
/WG
-
14
Paper Number:
Rev G
FRAC
#
235
Date:
DO
-
160
F
/ED
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14
F
Section:
19 (FRAC)
Author’s Name, Affiliation, and E
-
mail:
Kennet
h R. Cechura, Rockwell Collins,
krcechur@rockwellcollins.com
Paragraph:
19.3
Page:
19
-
3
Summary of
Change
(25 words or less)
:
Expansion and clarification of new test text & figure
Reason for Change
(Justification)
:
New test as stated and drawn are ambig
uous and do not follow existing tests in section
Revise From:
Subject the equipment under test to an audio frequency electric field
generated by
170V
rms
in a straight wire radiator of 0.20 m length located within 0.01 m of the periphery of
the unit of eq
uipment under test.
The frequencies to be applied are the same as those of the
H
-
field test of paragraph 19.3.1.
DETERMINE COMPLIANCE WITH APPLICABLE
EQUIPMENT PERFORMANCE STANDARDS.
During this test, the radiator shall be oriented with respect to each e
xternal surface of each
unit to cause maximum interference. F
or setup see Fig. 19
-
2
. The leads applying voltage
to the radiator shall be routed at least 0.6 m away from any part of the unit under test and
from the radiator itself. All units of the equipmen
t under test shall be individually tested.
The electric field power source shall not be synchronized with the power source of the
equipment supply.
Note: The Low Frequency E
-
Field test should be applied only to equipment which is
intended for installatio
n without external metallic containment, or which is covered by an
enclosure made from non
-
conducting material.
(Table 19
-
1 omitted from “revise from”)
Proposal Page Number:
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Change Proposal Form Rev
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Revise To:
Subject the equipment under test to an audio frequency electric field generated by
170V
rms in a straight wire radiator of 0.20 m length located within 0.01 m of the
periphery of the unit of equipment under test.
See Table 19
-
1 for applicable test
frequencies and levels
.
DETERMINE COMPLIANCE WITH APPLICABLE
EQUIPMENT PERFORMANCE STANDARDS.
During this test, the radiator shall be oriented with respect to each external surface of each
unit to cause maximum interference. For setup see Fig. 19
-
2. The leads applying voltage
to the radiator shall be routed at least 0.6 m away from any part of the
unit under test and
from the radiator itself. All units of the equipment under test shall be individually tested.
The electric field power source shall not be synchronized with the power source of the
equipment supply
.
During this test, place the wire h
orizontally and sweep up the front face of the EUT,
across the top and down the back face of the EUT. Turn the radiating wire or EUT 90
degrees and sweep up the left (or right) face of the EUT, across the top, and down the
right (or left) face of the EUT.
Additional radiating wire/EUT orientations are permissible.
The goal is to test all four sides and the top of the box. Sweep at a rate slower than the
system response time.
A resistor sized for personnel protection shall be installed in the radiator wir
e. For
170Vrms, a 100 kΩ resistor would limit current to 1.7 mA in the event that a person
comes in contact with the test wire.
Note: The Low Frequency E
-
Field test should be applied only to equipment which is
intended for installation without external me
tallic containment, or which is covered by an
enclosure made from non
-
conducting material.
(SEE END OF THIS CP DOCUMENT FOR A PROPOSED FIGURE TO REPLACE THE EXISTING
FIGURE IN THE FRAC
AS WELL AS PROPOSED ADDITIONS TO TABLE 19
-
1
)
Proposal Page Number:
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Change Proposal Form Rev
G
As Modified Text:
Subjec
t the equipment under test to an audio frequency electric field generated by
170V rms in a straight wire radiator of 0.20 m length located within 0.01 m of the
periphery of the unit of equipment under test.
See Table 19
-
1 for applicable test
frequencies a
nd levels.
DETERMINE COMPLIANCE WITH APPLICABLE
EQUIPMENT PERFORMANCE STANDARDS.
During this test, the radiator shall be oriented with respect to each external surface of each
unit to cause maximum interference. For setup see Fig. 19
-
2. The leads applyin
g voltage
to the radiator shall be routed at least 0.6 m away from any part of the unit under test and
from the radiator itself. All units of the equipment under test shall be individually tested.
The electric field power source shall not be synchronized w
ith the power source of the
equipment supply
.
During this test, place the wire horizontally and sweep up the front face of the EUT,
across the top and down the back face of the EUT. Turn the radiating wire or EUT 90
degrees and sweep up the left (or rig
ht) face of the EUT, across the top, and down the
right (or left) face of the EUT. The goal is to test all four sides and the top of the box.
Sweep at a rate slower than the system response time.
A resistor sized for personnel protection shall be installe
d in the radiator wire.
Note: The
Electric
Field test should be applied only to equipment which is intended for
installation without external metallic containment, or which is covered by an enclosure
made from non
-
conducting material.
Accepted As Writ
ten
Withdrawn
X
Accepted As Modified
Rejected
Deferred
Other
Rejection Reason
/
Comments
:
Proposal Deferred To:
RTCA SC
-
135 Concurrence
EUROCAE WG
-
14 Concurrence
Proposal Disposition By:
Date:
Proposal Page Number:
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Change Proposal Form Rev
G
Pa
ragraph
Test
Category ZC
Category AC
Category BC
Category CC
Magnetic Fields
induced into the
equipment
20
A rms at
400 Hz
20
A rms at
400 Hz
20
A rms at
400 Hz
20
A rms at 400
Hz
Electric
Fields induced
into the equipment
170 V
rms at
400 Hz
170 V rms
at
400 Hz
170 V rms at
400 Hz
170 V rms at
400 Hz
Paragraph
Test
Category Z
N
Category AN
Category BN
Category CN
Magnetic Fields
induced into the
equipment
20
A rms at
350 Hz and
650 Hz
20
A rms at
350 Hz and 650
Hz
20
A rms at
350 Hz and
650 Hz
20
A
rms at 350
Hz and 650 Hz
Electric
Fields induced
into the equipment
170 V
rms at
350 Hz and
650 Hz
170 V
rms at
350 Hz and 650
Hz
170 V
rms at
350 Hz and
650 Hz
170 V
rms at
350 Hz and 650
Hz
Paragraph
Test
Category ZW
Category AW
Category BW
Categor
y CW
Magnetic Fields
induced into the
equipment
20
A rms at
350 Hz and
800 Hz
20
A rms at
350 Hz and 800
Hz
20
A rms at
350 Hz and
800 Hz
20
A rms at 350
Hz and 800 Hz
Electric
Fields induced
into the equipment
170 V rms at
350 Hz and
80
0 Hz
170 V
rms at
350 Hz and
800
Hz
170 V rms at
350 Hz and
80
0 Hz
170 V
rms at
350 Hz and
80
0 Hz
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