Goto Section: 19.305 | 19.309 | Table of Contents
FCC 19.307
Revised as of October 1, 2008
Goto Year:2007 |
2009
Sec. 18.307 Conduction limits.
For the following equipment, when designed to be connected to the public
utility (AC) power line the radio frequency voltage that is conducted back
onto the AC power line on any frequency or frequencies shall not exceed the
limits in the following tables. Compliance with the provisions of this
paragraph shall be based on the measurement of the radio frequency voltage
between each power line and ground at the power terminal using a 50 μH/50
ohms line impedance stabilization network (LISN).
(a) All Induction cooking ranges and ultrasonic equipment:
Frequency of emission (MHz) Conducted limit (dBμV)
Quasi-peak Average
0.009–0.05 110 —
0.05–0.15 90–80* —
0.15–0.5 66 to 56* 56 to 46*
0.5–5 56 46
5–30 60 50
*Decreases with the logarithm of the frequency.
(b) All other part 18 consumer devices:
Frequency of emission (MHz) Conducted limit (dBμV)
Quasi-peak Average
0.15–0.5 66 to 56* 56 to 46*
0.5–5 56 46
5–30 60 50
*Decreases with the logarithm of the frequency.
(c) RF lighting devices:
Frequency (MHz) Maximum RF line voltage measured with a 50 uH/50 ohm LISN
(uV)
Non-consumer equipment:
0.45 to 1.6 1,000
1.6 to 30 3,000
Consumer equipment:
0.45 to 2.51 250
2.51 to 3.0 3,000
3.0 to 30 250
(d) If testing with a quasi-peak detector demonstrates that the equipment
complies with the average limits specified in the appropriate table in this
section, additional testing to demonstrate compliance using an average
detector is not required.
(e) These conduction limits shall apply only outside of the frequency bands
specified in Sec. 18.301.
(f) For ultrasonic equipment, compliance with the conducted limits shall
preclude the need to show compliance with the field strength limits below 30
MHz unless requested by the Commission.
(g) The tighter limits shall apply at the boundary between two frequency
ranges.
[ 50 FR 36067 , Sept. 5, 1985, as amended at 52 FR 43198 , Nov. 10, 1987; 64 FR 37419 , July 12, 1999; 67 FR 45671 , July 10, 2002]
Goto Section: 19.305 | 19.309
Goto Year: 2007 |
2009
CiteFind - See documents on FCC website that
cite this rule
Want to support this service?
Thanks!
Report errors in
this rule. Since these rules are converted to HTML by machine, it's possible errors have been made. Please
help us improve these rules by clicking the Report FCC Rule Errors link to report an error.
hallikainen.com
Helping make public information public