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Page Title:
Table 10-1. Controlled Environment Exposure Limits |
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|  DOE-HDBK-1092-98
Table 10-1. Controlled Environment Exposure Limits
Part A
Electromagnetic Fieldsa
1
2
3
4
5
Frequency
Electric Field Magnetic Field
Power density (S) Averaging
range
strength (E)
strength (H)
E-field, H-field
time
|E|2, |H|2, or S
(mW/cm2)
(MHz)
(v/m)
(A/m)
(minutes)
(100, 1,000,000)b
0.003-0.1
61.4
163
6
16.3/ƒc
(100, 10,000/ƒ2)b
0.1-3.0
61.4
6
(900/ƒ2, 10,000/ƒ2)b
3-30
1842/ƒ
16.3/ƒ
6
(1.0, 10,000/ƒ2)b
30-100
61.4
16.3/ƒ
6
100-300
61.4
0.163
1.0
6
300-3,000
ƒ/300
6
3,000-15,000
10
6
616,000/ƒ1.2
15,000-300,000
10
Part B
Introduced and contact RF Currentsd
Frequency range
Maximum current (mA)
Contact
Through both feet
Through each foot
0.003-0.1 MHz
2,000 ƒ
1,000 ƒ
1,000 ƒ
0.1-100 MHz
200
100
100
a.
The exposure values in terms of electric and magnetic field strength are the values obtained by spatially
averaging values over an area equivalent to the vertical cross section of the human body (projected
area).
b.
These plane-wave equivalent power density values, although not appropriate for near-field conditions,
are commonly used as a convenient comparison with MPEs at higher frequencies and are displayed
on some instruments in use.
The f = frequency in MHz.
c.
d.
It should be noted that the current limits given in this table may not adequately protect against startle
reactions and burns caused by transient discharges when contacting an energized object.
NEC Article 305 "Temporary Wiring," requires removal of temporary wiring upon completion of
the experiment for which it was installed.
An overly strict interpretation can obstruct the scientific objectives of the R&D configuration, but if
a liberal interpretation is allowed, there is a possibility that unsafe wiring methods will be used. The
AHJ must consider programmatic needs without sacrificing personnel safety.
10-11
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