Lighting effiency building regs changes

[spud1]

I have heard from multiple sources that building Regs have changed and now require drawings/designs submitted after beginning of October 1st 2010 to allow 75% energy efficient lighting with dedicated lamps that have an efficiency greater than I think 50 or 55? lumens per circuit watt instead of 45.

Has anyone got further info or clarification on this ?

Spud

 

[Guest123]

http://www.electriciansforums.net/e...fter-new-part-l-changes.html?highlight=part+l

 

[spud1]

But Ive been told its already changed ? Thats what Im saying? Is this incorrect ?

 

[roukel01]

1st of october it changed, but if you're doing a new install at the min, chances are the plans were passed before these changes took affect. also, it used to be 40 lumens per watt for domestic, it is now 45.

 

[Guest123]

Part L - Conservation of fuel and power

Overview
The legal framework and Approved Documents for Part L (Conservation of fuel and power) are now contained in the Building Regulations 2010 which came into effect on 1st October 2010. The Regulation contain new energy performance requirements for work notified to building control bodies on or after 1st October 2010. For work notified to building control bodies before 1st October 2010 the 2006 Approved Documents apply.

Technical guidance
Following the links in the panel to the left will give access to the main technical documents and supporting information, including the Approved Documents and national calculation methodologies.

INFORMATION NOTE:

From the 1 October 2010, you should use to the new Approved Documents (LIA, L1B, L2A, L2B) 2010 edition, which is available as a free download on the individual “Approved Document L1A, L1B, L2A, L2B” web pages. See link on the left hand side panel.

Explanatory / Procedural Documents

You may also wish to reference the following:

• Circular (02/2010) dated 16 March 2010
• Circular (03/2006) dated 15 March 2006
• Circular Letter dated 30 March 2006

 

[hillbillie]

Am I missing something? I have just read document L1B, which concerns existing dwellings (like the flat i am currently rewiring) and I see no mention of specific percentages for energy saving luminaires or lumens per circuit watt figures. If the 70% and 45 lumens per circuit watt rules are in place, they are not mentioned in this document.

So where are they mentioned?

 

[j.mawer]

First post after lurking for a while but...

After reading (ish) L1B I ended up finding a reference to the 45 lumens/W in a completely different document

Domestic building compliance guides
http://www.planningportal.gov.uk/uploads/br/domestic_building_compliance_guide_2010.pdf

1.1 Scope Covers both new systems and replacement systems

page 13 continues the table
Summary of recommended minimum energy efficiency standards for building services

Building service standard (2)
Internal light fittings (75%) 45 lamp lumens per circuit-watt

(2) All values are minimum values and apply to new and existing buildings

Hope that helps

 

[hillbillie]

'recommended minimum energy efficiency standards for building services'

Does this mean recommended or is it compulsory? If it is just recommended, I suppose the 25% rule would apply. Why can't they make things clearer!