347 / 576
347
S3D
SF
1
0.05
0.1
1
5
g
10
100 200 Hz
0.2
0.03
0.1
1
7
g
10
1
100 200 Hz
1
0.3
1
10
g
10
100 200 Hz
SF 3G
SF 5G
S3D 6G
1
0.05
0.1
1
5
g
10
100 200 Hz
0.2
0.03
0.1
1
7
g
10
1
100 200 Hz
1
0.3
1
10
g
10
100 200 Hz
SF 3G
SF 5G
S3D 6G
DB300843
1
0.05
0.1
1
5
g
10
100 200 Hz
0.2
0.03
0.1
1
7
g
10
1
100 200 Hz
1
0.3
1
10
g
10
100 200 Hz
SF 3G
SF 5G
S3D 6G
New
Technical information
Definitions
Ground acceleration:
Ground acceleration resulting from a given earthquake.
Note: In practice, ground acceleration can be broken down into horizontal and vertical
components.
Floor acceleration:
Acceleration of a particular floor in a building (at the location of an equipment item)
resulting from a given earthquake.
Note: In practice, floor acceleration can be broken down into horizontal and vertical components.
Test results
Spacial SF and S3D offer
Earthquake characteristics
Floor acceleration (m/s²) (2)
Standard
5G (5)
6G (5)
IEC 60068-3-3 (Table 3)
Required response spectra (RRS)
Test response
spectra (TRS)
Seismic
zones
Intensity scales Ground
acceleration a
g
IEC 60068-3-3 EDF
S3D SF, SF
19", SFP
SF 5G,
SFP 5G
S3D 6G UBC (3) Richter MSK (4) m/s²
Horiz.
Vertic.
Horiz.
Vertic.
Specification
Horiz.
Vertic.
0
< 5.5 < VIII
N/A
1-2
2
6
3
-
-
3
≥ 5.5
and ≤ 7
VIII to IX 3
9
4.5
6
4.8
HN 20-E-53
9
9
4
> 7
> IX 5
15
7.5
10
8
CRT 91-C-112-00
15
12
(1)
(1)
(1)
20
24
M12D0168610
29.6 40
(1) The IEC 60068-3-3, 1991-02 standard has not yet been updated since the events at Fukushima.
(2) Floor acceleration = a
g
x K x D (§8.2.7), where:
K = amplification factor = 3 (Table 4 of IEC 60068-3-3)
D = direction factor = 1 for the horizontal direction, = 0.5 for the vertical direction (Table 5 of IEC 60068-3-3).
(3) Approximate Uniform Building Code values for the zone.
(4) MSK (Medvedev-Sponheuer-Kamik, corresponding to the modified Mercalli intensity scale).
(5) The 5G and 6G designations refer to the amplified maximum acceleration value read respectively on the horizontal RRS of the EDF standard CRT91C11200 and on
vertical RRS of the EDF MRI standard for large equipment.
(6) Except larger enclosures. Consult us.
Comment:
g = acceleration due to gravity rounded off to the nearest whole number (1g = 10 m/s²).
Spacial SF&S3D
Seismic and nuclear enclosures
Introduction
Test Response Spectra (TRS)
Spectra for SF 5G cubicles
Spectra for SF 3G cubicles
Spectra for S3D 6G boxes
TRSx
TRSy
TRSz
Amplified maximum acceleration: acceleration expected at the center of gravity of the equipment
Maximum floor acceleration: unamplified acceleration
x = front-rear horizontal axis
y = left-right horizontal axis
z = vertical axis
(6)