Internal lighting. General requirements

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Section 6. Electric lighting

Internal lighting. General requirements

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

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6.2.1. Luminaires with fluorescent lamps should be used with ballasts that provide a power factor of at least 0,9 for luminaires with two lamps or more and 0,85 for single-lamp luminaires.

For DRL, DRI, DRIZ, DNAT lamps, both group and individual reactive power compensation can be used. If there are feasibility studies, the use of these lamps without a reactive power compensation device is allowed. With group compensation, the compensating devices must be switched off simultaneously with the switching off of the lamps.

6.2.2. The supply of a local lighting luminaire (without a step-down transformer or through a step-down transformer) can be carried out using a branch from the power circuit of the mechanism or machine for which the luminaire is intended.

In this case, a separate protective device may not be installed in the lighting circuit if the protective device of the power circuit has a setting current of not more than 25 A.

Branching to local lighting fixtures at a voltage of more than 50 V within the workplace should be carried out in pipes and boxes made of non-combustible materials and other mechanically strong structures.

6.2.3. The supply of health-improving ultraviolet irradiation installations should be carried out:

long-term installations - along separate group lines from working lighting shields or independent group shields;
installations of short-term action (photoria) - on separate lines from the electric power network or the supply network of working lighting.

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

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