【Joint Study*】【Electrical Version 20160228】
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Participation reward: 2 Wealth. Reward for correct answer: 9 wealth. The metal shielding of AC single-phase power cables must be directly grounded, and the normal induced voltage at any point on the metal shielding that is not grounded must comply with the following regulations ( ). A. When no safety measures are in place to prevent arbitrary contact with the metal shielding, it shall not exceed 50V. B. The grounding resistance value must meet the requirements for the protection and proper functioning of electrical installations, and this condition must remain valid over the long term. C. Protective measures must be taken to prevent damage to other metal components caused by electrochemical erosion. D. It must be able to withstand grounding fault currents and current leaks to ground, especially without being subjected to heat, thermal mechanical stress, or electrical mechanical stress in a way that could pose a risk
The metal shielding of AC single-phase power cables must be directly grounded, and the normal induced voltage at any point on the metal shielding that is not grounded must comply with the specified values (AC). A. When no safety measures are in place to prevent arbitrary contact with the metal shielding, the voltage shall not exceed 50V. B. The grounding resistance value must meet the requirements for the protection and proper functioning of electrical installations, and it must remain effective over the long term. C. Protective measures must be taken to prevent damage to other metal components caused by electrochemical erosion. D. It must be able to withstand grounding fault currents and current leaks to ground, especially without suffering from heat, thermal mechanical stress, or electrical mechanical stress
The metal shielding of AC single-phase power cables must be directly grounded, and the normal induced voltage at any point on the metal shielding that is not grounded must comply with the specified requirements (A). A. When no safety measures are in place to prevent arbitrary contact with the metal shielding, the voltage shall not exceed 50V. B. The grounding resistance value must meet the requirements for the protection and proper functioning of electrical installations, and it must remain effective over the long term. C. Protective measures must be taken to prevent damage to other metal components caused by electrochemical erosion. D. It must be able to withstand grounding fault currents and current leaks to ground, especially without suffering from heat, thermal mechanical stress, or electrical mechanical stress
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