The Energy Efficiency (Ballasts for Fluorescent Lighting) Regulations 2001

Regulation 4(1)(a)

SCHEDULE 1 CALCULATION OF MAXIMUM ALLOWABLE ELECTRICITY CONSUMPTION

1.  The energy efficiency of the ballast-lamp circuit is determined by the maximum input power into the circuit. This is a function of the lamp power and of the type of ballast. The maximum input power of ballast-lamp circuits of a given ballast is defined as the maximum ballast-lamp circuit power, with different levels for each lamp power and ballast type.

2.  Expressions used in this Schedule have the same meaning as in European Standard EN50294.

3.  The ballast shall first be allocated to the appropriate category from the following list:

Category	Description
1	Ballast for linear lamp type
2	Ballast for compact 2 tubes lamp type
3	Ballast for compact 4 tubes flat lamp type
4	Ballast for compact 4 tubes lamp type
5	Ballast for compact 6 tubes lamp type
6	Ballast for compact 2 D lamp type

4.  The maximum allowable input power of a ballast-lamp circuit—

(a) in the period before 21st November 2005, shall be that shown in column 3(a) of the Table below;

(b) in the period beginning with that date, shall be that shown in column 3(b) of that Table.

TABLE

Maximum input power of ballast-lamp circuits

Ballast category	Lamp Power		Maximum input power of Ballast-lamp circuits
Column 1	Column 2		Column 3
	50Hz	HF	(a)	(b)
1	15 W	13.5 W	25 W	23 W
	18 W	16 W	28 W	26 W
	30 W	24 W	40 W	38 W
	36 W	32 W	45 W	43 W
	38 W	32 W	47 W	45 W
	58 W	50 W	70 W	67 W
	70 W	60 W	83 W	80 W
2	18 W	16 W	28 W	26 W
	24 W	22 W	34 W	32 W
	36 W	32 W	45 W	43 W
3	18 W	16 W	28 W	26 W
	24 W	22 W	34 W	32 W
	36 W	32 W	45 W	43 W
4	10 W	9.5 W	18 W	16 W
	13 W	12.5 W	21 W	19 W
	18 W	16.5 W	28 W	26 W
	26 W	24 W	36 W	34 W
5	18 W	16 W	28 W	26 W
	26 W	24 W	36 W	34 W
6	10 W	9 W	18 W	16 W
	16 W	14 W	25 W	23 W
	21 W	19 W	31 W	29 W
	28 W	25 W	38 W	36 W
	38 W	34 W	47 W	45 W

5.  Whenever a ballast is designed for a lamp which falls between two values indicated in the above Table, the maximum input power of the ballast-lamp circuit shall be calculated by linear interpolation between the two values of maximum power for the two closest lamps indicated in the Table.

For example if a ballast in lamp category 1 is rated for a 48W lamp at 50H_z, the maximum input power of the ballast-lamp circuit shall be calaculated as follows—

(a) in the period before 21st November 2005—

(b) in the period beginning with that date—