Hidden electrical wiring inside the premises

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Section 2. Sewerage of electricity

Wiring. Hidden electrical wiring inside the premises

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

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2.1.66. Hidden electrical wiring in pipes, ducts and flexible metal hoses must be made in compliance with the requirements given in 2.1.63 - 2.1.65., and in all cases - with a seal. The box of hidden electrical wiring must be deaf.

2.1.67. Electrical wiring in ventilation ducts and shafts is prohibited. It is allowed to cross these channels and shafts with single wires and cables enclosed in steel pipes.

2.1.68. The laying of wires and cables behind false ceilings should be carried out in accordance with the requirements of this chapter and Ch. 7.1.

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

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