close enough to the cellulose insulationto causeheat degradation of the insulation
by moisture(passive) caused byinsulation degradation ... , or breakdown
Unacknowledged variation in harmonics of the excitation voltage waveformcan influencethe insulation 's degradation
Localized heating from PDmay causethermal degradation of the insulation
the concentration of whichmay causedeterioration of electrical insulation
by partial discharge(passive) caused byswitchgear insulation degradation
by repeated or excessive overheating(passive) caused bywinding insulation degradation
The overheatingleadsto winding insulation degradation
The effects of moisture , dirt , corrosion , chemical penetration and even vibrationcan causedegradation of insulation
the x directioncausesisolation degradation
by high electrical stress(passive) caused bythe insulation degradation
joint ... moisture ingress ... , not only in the joint region but possibly also along the pipes to some distance from the joint , and cause also corrosion of the pipesmight ... causedegradation of the insulation
Voltage surges in the power supplycan causeinsulation break down
Ex ... the x directioncausesisolation degradation
by repeated or excessive overheating(passive) caused byinsulation degradation
the cable insulationcausingthe insulation degradation