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Новичок
Vladimir Goncharov
Рейтинг
+5.00
Автор не входит в состав редакции iXBT.com (подробнее »)
STATIC ELECTRICITY IN
THE APOLLO SPACECRAFT
by Andrew E. Potter, Jr., and Benny R. Baker
Munned Spacecraft Center
Houston, Texas
n S'OD
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION WASHINGTON, D. C. DECEMBER 1969
Static electricity ignition hazards in the Apollo spacecraft were studied. Sparks with energies
up to 2 millijoules can be generated by a space-suited man. This amount is sufficient to ignite flammable gas vapors and mists, but is not sufficient to ignite flammable solids such as
logbook paper and cotton cloth present in the Apollo spacecraft. Biomedical sensors were
used to ground the space-suited man to the spacecraft and eliminate static electricity ignition
hazards. Temporary interference with cardiac readings from the biomedical sensors occurred during static charge drainage. This interference was minimized by adding a 0. 1- to
1-megohm resistor in parallel to the ground circuit. Insulating fabrics used for the couch
covers became electrified during use. The electrostatic charge on the couch covers was
minimized by installing a grounded metal screen underneath the couch cover fabric. Storage
lockers on the spacecraft floor and lithium hydroxide canisters stowed in the storage lockers
were capable of accumulating several millijoules of electric energy before they were grounded
to the spacecraft structure. No evidence existed of static electricity interference with the
operation of the communications system of the portable life support system.
Отрицала не знает, что еще на Сурвеерах электростатику лунной поверхности замечали, но конечно же НАСА не знает, потому что в интервью никто никогда не сказал, только в статьях новучных писали!