Influencing
Parameters
Typical results
Moisture
Physical : corrosion, migration, electrolyse, adsorption,
absorption, osmose, loss in adhesion
Electrical : tracking resistances, drift of parameters, voltage
flash over, short circuits, increased rushing
Temperature cycles
( -40 °C to 85 °C)
Physical : oxidation, degradation, softening,
embrittlement, stress, loss in adhesion
Electrical : drift in parameters, disconnection after T-Stress
Corrosive Media
(salt fog, acid rain,
organic solvents etc.)
Physical : corrosion, migration, electrolyse, adsorption,
absorption, loss in adhesion
Electrical : tracking resistances, drift of parameters, voltage
flash over, short circuits
Dynamic fatique
loading,
mechan. shock
Physical : degradation, rupture of structures, dismantle
of connections
Electrical : disconnection, contact problems, short circuits
Other influences,
fungal attack, dust
etc.
Ageing and degradation of plastics, failure in drifts, short circuits,
increased rushing, voltage flash over, tracking resistances
