Fluorescent luminaire

Fluorescent luminaires require a simple electrical circuit to initiate the ionization of the gas in the tube and a device to control the current once the arc is struck and the lamp is illuminated. Such a circuit is shown in Fig. 2.60. 

A typical application for a fluorescent luminaire is in suspended ceiling lighting modules used in many commercial buildings. Energy-efficient lamps use... 

The power-factor correction capacitor used in a domestic fluorescent luminaire would typically have a value of 8 iF at a working voltage of 400 V. In an electronic filter circuit a typical capacitor value might be 100pF at 63 V. 

Luminaire types (a) parabolic aluminized reflector (PAR) lamp holder (b) incandescent, compact fluorescent or high-intensity discharge lamp downlight (c) lensed fluorescent lamp luminaire (d) wall-mounted compact fluorescent lamp luminaire (e) wall-mounted high-intensity discharge lamp luminaire (f) roadway luminaire (g) low bay industrial luminaire (h) multi-faceted reflector (MR) lamp (i) pendant sphere. 

Luminaire for tubular fluorescent lamps, increased safety, encapsulated series reactor, flameproof power factor capacitor ... 

Figure 6.61 Luminaire in increased safety - e -. One or two tubular fluorescent lamps with Fa 6 sockets (single-pin cap).

Caution shall be given to avoid any mechanical damage of the tube of fluorescent lamps, not only when fitted inside the luminaire (and in operation), but also during transportation in a potentially explosive atmosphere. 

The specific luminous flux - luminous flux per price unit - however, does not differ significantly between e-luminaires with tubular fluorescent lamps (13.4 lm) and d-luminaires (9.21m to 25.71m). 

Replacement of a lamp in a luminaire for a new one of a C different type (e.g. a compact fluorescent for an incandescent lamp) to increase efficiency... 

EN55015 Limits and methods of measurement of radio interference characteristics of fluorescent lamps and luminaires. 

Figure 3.7.1 Factory lighting where fine work is carried out and coiour rendering is important, making use of reflector luminaires with tubular fluorescent lamps (Courtesy Lighting Industry Federation)...

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