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Technical Explanation

Cross-linking Technology
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The polyethylene used as the insulating material is particularly well suited to the task since it is highly resistant to electrical damage and is easy to work.

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However, the main weakness of polyethylene is its poor resistance to heat.

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This can result in severe damage to wiring caused by the heat from soldering or heat varnishing, or when a mechanical problem results in machinery overheating.

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So, when the conventional molecular structure of the polyethylene is irradiated using an electr on beam...

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...hydrogen molecules are driven off and adjacent carbon atoms form three-dimensional bonds to build a mesh structure.

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This process is called "cross-linking".

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This cross-linking technique bonds the atoms together in a stable shape. This has the effect of making the material more resistant to heat.

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Sumitomo Electric is recognized worldwide as the first Japanese company to develop this technology.

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