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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Section 5. Electric power plants

Crane electrical equipment. Control, protection, signaling

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Encyclopedia of radio electronics and electrical engineering / Rules for the installation of electrical installations (PUE)

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5.4.51. The voltage of control and automation circuits must not exceed 400 V AC and 440 V DC. On cranes intended for enterprises with an electrical network of 500 V, a voltage of 500 V is allowed.

5.4.52. Protection of electrical equipment of cranes must be carried out in accordance with the requirements of Ch. 3.1 and 5.3.

See other articles Section Rules for the installation of electrical installations (PUE).

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The iQOO brand has launched a new product in the world of wireless headphones - iQOO TWS 1e.

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iQOO TWS 1e is the perfect combination of modern design, advanced technology and affordable price. They provide high-quality sound, reliable protection and long battery life, making them a great choice for wireless headphones lovers.

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