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← ScienceWhich outcome sharply accelerates polyethylene degradation on a power cable?
A)Increased UV exposure photochemical process✓
B)Applying silicone grease insulation layer
C)Decreased electric field strength
D)Use of nitrogen gas blanket
💡 Explanation
Increased UV exposure initiates chain scission via a photochemical process; this depolymerization sharply increases the degradation rate because shorter chains are less stable, therefore UV accelerates polymer breakdown, rather than methods that preserve them.
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