Daylight Electrical Solutions Limited
Low Energy Power and Lighting Specialists
Part L
The Building Regulations Part L
(England & Wales Only)
The Building Regulations Part L were amended by Statutory Instrument (2001) No 3335 on 11 October 2001.New Approved Documents L1 and L2 giving approved guidance on how the new Part L can be complied with, were published on 31 October. The amendments to the Regulations and the new Approved Documents came into effect on 06 April 2006.There are many new features in the changes to the Regulations and the new Approved Documents that may be unfamiliar to designers, builders, building services contractors and building control inspectors alike. Local authority Building Control departments are a traditional source of help on how works can meet the regulations. To find out if your lighting complies with this regulation please take a quick look at the table below:-
Number
of roomsMinimum number of locations
for energy efficient lamps
1-3
1
4-6
2
The landing, stairs and hall are regarded a single room in the calculations
7-9
3
An integral conservatory is counted as a room but not garages or outhouses
10-12
4
In Brief: for Domestic Dwellings
1 in 4 of the fittings installed should be energy efficient and meet the requirments of 40 lumens*
per circuit watt. The fitting must not have a lamp which can be interchangable with any other lamp
and does not meet 40 lumens per watt.