2006-09-25 22:06:53 · 5 answers · asked by annperry400@btinternet.com 1 in Science & Mathematics ➔ Engineering
SAFETY WARNING! – PLEASE READ CAREFULLY
This product should be installed and serviced by a qualified technician, electrician or
electrical maintenance person familiar with its operation and the hazards involved.
Proper installation, which includes wiring, mounting in proper enclosure, fusing or other
overcurrent protection and grounding, can reduce the chance of electric shocks, fires
or explosion in this product or products used with this product, such as electric motors,
switches, coils, solenoids or relays. Eye protection must be worn and insulated
adjustment tools must be used when working with control under power. This product
is constructed of materials (plastics, metals, carbon, silicon, etc.) which may be a
potential hazard. Proper shielding, grounding and filtering of this product can reduce
the emission of radio frequency interference (RFI) which may adversely affect
sensitive electronic equipment. If information is required on this product, contact our
factory. It is the responsibility of the equipment manufacturer and individual installer
to supply this safety warning to the ultimate user of this product. (SW effective 11/92)
Fire and/or electrocution can result due to improper use of this product.
2006-09-25 22:12:08 · answer #1 · answered by col 3 · 1⤊ 3⤋
A RFI (Radio Frequency Interference) or EMI (Electromagnetic Interference) Filter is generally used in electronic equipments to protect them from harmful interference of radio waves (from nearby transmitters, welding equipments, switching power supplies of other equipments etc).
Radio Frequency Interference generally comes via the power supply lines which acts as giant antenna. Hence RFI / EMI Filters are normally inserted in series with the input power supply.
They also serve a dual purpose - any RFI / EMI generated by the equipment is also not fed back to the line as it gets attenuated in the filter.
One important note: Any RFI / EMI filtering is useless if the equipment is not grounded or if the EARTH terminal is left unconnected!
2006-09-26 08:16:17 · answer #2 · answered by kkonline 3 · 0⤊ 0⤋
The only answer I know of is "Radio Frequency Interference" It's usually a part fitted to a device to stop it from interfering with TVs and radios
2006-09-26 05:12:09 · answer #3 · answered by teef_au 6 · 0⤊ 0⤋
Radio frequency interference filter. Does what it says on the tin, really!
2006-09-26 05:22:16 · answer #4 · answered by Lick_My_Toad 5 · 1⤊ 0⤋
It removes Radio Frequency Interference, or at least tries too.
2006-09-26 05:12:13 · answer #5 · answered by cooperman 5 · 1⤊ 0⤋