09-04-2007, 10:09 AM
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Join Date: Apr 2005
| | Safety Standard for CB Base Antennas
You should know WHY there are no longer any aluminum CB base station CB antennas and why Maco, A1, Jo-Gunn, etc sell "10 meter" antennas that are tunable from 12 - 10 meters.
TITLE 16--Commercial Practices
CHAPTER II--CONSUMER PRODUCT SAFETY COMMISSION
SUBCHAPTER B--CONSUMER PRODUCT SAFETY ACT REGULATIONS http://ecfr.gpoaccess.gov/cgi/t/text...dno=16;cc=ecfr
(2) About 175 fatalities were estimated to be associated with omnidirectional CB antennas in 1976. The estimated number of fatalities declined to about 125 in 1977 and to about 55 in 1978. Since then, the number of fatalities appears to have leveled off at about 45–50 each year. In addition to the 45–50 deaths, it is estimated that a somewhat greater number of injuries occur annually and that about half of them are serious enough to require surgery, amputation, skin grafts, etc. It is common for multiple deaths or injuries to occur in a single accident. |
(3) The Commission's staff has estimated that since 1979 about 20 percent of the accidents involved antennas less than a year old, resulting in about 8 deaths in 1980.
(4) Since a substantial portion of the accidents associated with these antennas occur when the antenna is being taken down after it has been installed in an outdoor environment for a number of years, the standard recommends that materials selected to provide protection from shock be weather resistant.
(5) The standard specifies that protection shall be provided against voltages of 14,500 volts phase-to-ground. Voltages of this level or less are involved in 98 percent of the accidents and 95 percent of the total circuit mileage of distribution circuits.
(b) The approximate number of consumer products, or types or classes thereof, subject to the rule. (1) The standard applies to omnidirectional CB base station antennas. The Commission estimates that there were approximately 5 million omnidirectional base station antennas in use in 1981, and at that time as many as 75,000 of these antennas were expected to be sold each year for the next several years.