电子计算机用屏蔽电缆，选用介电常数小的高压聚乙烯作绝缘。
Computer to use shielded cable, use a small dielectric constant, high-pressure polyethylene for insulation.
热缩半导电管适用于高压电缆中起屏蔽用。
Heat shrinkable semi-conductive tube Applied to hig-voltage cable accessory to make effect of shield.
高压变电所内屏蔽电缆屏蔽层的正确接地，对降低外部电磁场对微机型二次设备的干扰水平，起着重要作用。
The proper earthing of the shielded layer of cable in HV substation plays an important part in reducing electromagnetic interference to the microcomputer-based secondary facilities.
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