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