What question did this study set out to answer?

To determine the role of charge transfer mechanisms and interfacial photoemission during electrical tree initiation in low-density polyethylene under highly divergent electric fields.

August 1, 1986IEEE Transactions on Electrical Insulation

The Role of Polymer Interface During Tree Initiation in LDPE

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Authors

SBS.S. BamjiNational Research Council Canada ABA.T. BulinskiWrocław University of Science and Technology RDR.J. DensleyNational Research Council Canada

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Implication

Experimental analysis demonstrates charge-induced photoemission drives tree initiation in LDPE, indicating high-voltage ultraviolet radiation causes rapid insulation breakdown.

Key Points

To determine the role of charge transfer mechanisms and interfacial photoemission during electrical tree initiation in low-density polyethylene under highly divergent electric fields.
Subjected degassed, air-impregnated, and alternative gas-impregnated low-density polyethylene (LDPE) specimens to highly divergent electric fields.
Measured and compared photoemission characteristics and spectral behavior across the different specimen environments at varying voltage levels.
Detected light emission in degassed, air-impregnated, and gas-impregnated specimens, with degassed samples exhibiting distinct photoemission characteristics attributed to electron-hole recombination.
Identified that emitted light at low voltages remains largely within the visible spectrum without inflicting immediate insulator damage.
Observed a shift toward intense, energetic ultraviolet radiation at high voltages, which induces rapid polymer degradation and triggers electrical tree initiation.

Cite This Study

Bamji et al. (1986) studied this question.

synapsesocial.com/papers/6a975ac6dfe10a478e9d9130 https://doi.org/10.1109/tei.1986.348969

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Implication

Experimental analysis demonstrates charge-induced photoemission drives tree initiation in LDPE, indicating high-voltage ultraviolet radiation causes rapid insulation breakdown.

The Role of Polymer Interface During Tree Initiation in LDPE

Discussion

Member takes

Implication

Key Points

Cite This Study

The Role of Polymer Interface During Tree Initiation in LDPE

Discussion

Member takes

Implication

Key Points

Cite This Study

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