Internal electrical equipment

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Section 7. Electrical equipment of special installations

Electrical installations of residential, public, administrative and household buildings. Internal electrical equipment

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

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7.1.46. In the premises for cooking, except for the kitchens of apartments, lamps with incandescent lamps installed above workplaces (stoves, tables, etc.) must have a protective glass below. Luminaires with fluorescent lamps must have gratings or grids or lamp holders to prevent the lamps from falling out.

7.1.47. In bathrooms, showers and lavatories, only electrical equipment should be used that is specifically designed for installation in the appropriate areas of the specified premises in accordance with GOST R 50571.11-96 "Electrical installations of buildings. Part 7. Requirements for special electrical installations. Section 701. Bathrooms and shower rooms", the following requirements must be met:

- electrical equipment must have a degree of protection for water not lower than:

in zone 0 - IPx7;
in zone 1 - IPx5;
in zone 2 - IPx4 (IPx5 - in public baths);
in zone 3 - IPx1 (IPx5 - in public baths);

- in zone 0, electrical appliances with a voltage of up to 12 V intended for use in the bath can be used, and the power source must be located outside this zone:

- only water heaters can be installed in zone 1;

- in zone 2, water heaters and lighting fixtures of protection class 2 can be installed;

- in zones 0, 1 and 2 it is not allowed to install junction boxes, switchgears and control devices.

7.1.48. Installation of plug sockets in bathrooms, shower rooms, soap rooms of baths, rooms containing heaters for saunas (hereinafter referred to as "saunas"), as well as in washing rooms of laundries is not allowed, with the exception of bathrooms of apartments and hotel rooms.

In the bathrooms of apartments and hotel rooms, it is allowed to install socket outlets in zone 3 according to GOST R 50571.11-96, connected to the network through isolating transformers or protected by a residual current device that responds to a differential current not exceeding 30 mA.

Any switches and sockets must be located at least 0,6 m from the doorway of the shower cabin.

7.1.49. In buildings with a three-wire network (see clause 7.1.36.), socket outlets for a current of at least 10 A with a protective contact must be installed.

Plug sockets installed in apartments, living rooms in a hostel, as well as in rooms for children in children's institutions (kindergartens, nurseries, schools, etc.) must have a protective device that automatically closes the socket sockets when the plug is removed.

7.1.50. The minimum distance from switches, socket outlets and elements of electrical installations to gas pipelines must be at least 0,5 m.

7.1.51. Switches are recommended to be installed on the wall from the side of the door handle at a height of up to 1 m, it is allowed to install them under the ceiling with a cord control.

In rooms for children in childcare facilities (kindergartens, nurseries, schools, etc.), switches should be installed at a height of 1,8 m from the floor.

7.1.52. In saunas, bathrooms, sanitary facilities, soap rooms of baths, steam rooms, washing rooms of laundries, etc. installation of switchgears and control devices is not allowed.

In washbasin rooms and zones 1 and 2 (GOST R 50571.11-96) of bathrooms and shower rooms, it is allowed to install switches operated by a cord.

7.1.53. Switching devices of the lighting network of attics with elements of building structures (roofing, trusses, rafters, beams, etc.) made of combustible materials must be installed outside the attic.

7.1.54. Switches for lamps for working, safety and evacuation lighting of premises intended for the stay of a large number of people (for example, retail premises of shops, canteens, hotel lobbies, etc.) should be accessible only to service personnel.

7.1.55. A luminaire must be installed above each entrance to the building.

7.1.56. House license plates and fire hydrant indicators installed on the outer walls of buildings must be illuminated. The electric light sources of license plates and hydrant indicators should be powered from the building's internal lighting network, and the fire hydrant indicators installed on outdoor lighting poles should be supplied from the outdoor lighting network.

7.1.57. Fire-fighting devices and burglar alarms, regardless of the category in terms of the reliability of the power supply of the building, must be powered from two inputs, and in their absence - by two lines from one input. Switching from one line to another should be automatic.

7.1.58. Electric motors installed in the attic, distribution points, separately installed switching devices and protection devices must have a degree of protection of at least IP44.

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

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