EEC ESD-140, Руководство по эксплуатации

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1. Introduction
1.1 Safety Symbols
1.1.1 Product Marking Symbols
Product will be marked with this symbol when it is necessary to refer to the
operation and service manual in order to prevent injury or equipment damage.
Product will be marked with this symbol when hazardous voltages may be
present.
Product will be marked with this symbol at connections that require earth
grounding.
1.1.2 Caution and Warning Symbols
Calls attention to a procedure, practice, or condition that could
possibly cause bodily injury or death.
Calls attention to a procedure, practice, or condition that could
possibly cause damage to equipment or permanent loss of data
1.2 Glossary of Terms
Alternating Current, AC: Current that reverses direction on a regular basis,
commonly in the U.S.A. 60 per second, in other countries 50 times per second.
Breakdown: The failure of insulation to effectively prevent the flow of current
sometimes evidenced by arcing. If voltage is gradually raised, breakdown will begin
suddenly at a certain voltage level. Current flow is not directly proportional to voltage.
Once breakdown current has flown, especially for a period of time, the next gradual
application of voltage will often show breakdown beginning at a lower voltage than
initially.
Conductive: Having a volume resistivity of no more than 103 ohm-cm or a surface
resistivity of no more than 105 ohms per square.
Conductor: A solid or liquid material which has the ability to let current pass through
it, and which has a volume resistivity of no more than 103 ohm-cm.
Current: The movement of electrons through a conductor. Current is measured in
amperes, milliamperes, microamperes, nanoamperes, or picoamperes. Symbol = I
WARNING
CAUTION