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1Ć12
MTG100 & MTG300 MPEG Generator Service Manual
Table 1Ć6: Certifications and compliances (Cont.)
Category Standards or description
Installation (Overvoltage) Category Terminals on this product may have different installation (overvoltage) category designations. The
installation categories are:
CAT III DistributionĆlevel mains (usually permanently connected). Equipment at this level is
typically in a fixed industrial location.
CAT II LocalĆlevel mains (wall sockets). Equipment at this level includes appliances,
portable tools, and similar products. Equipment is usually cordĆconnected.
CAT I Secondary (signal level) or battery operated circuits of electronic equipment.
Pollution Degree A measure of the contaminates that could occur in the environment around and within a product.
Typically the internal environment inside a product is considered to be the same as the external.
Products should be used only in the environment for which they are rated.
Pollution Degree 2 Normally only dry, nonconductive pollution occurs. Occasionally a
temporary conductivity that is caused by condensation must be expected.
This location is a typical office/home environment. Temporary
condensation occurs only when the product is out of service.