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LandRoverAnorak



Member Since: 17 Jul 2011
Location: Surrey
Posts: 11324

United Kingdom 
We know all of this, Brendan, it's been covered already and has nothing to do with the peak beam intensity regulation that I thought we were discussing Confused Darren

110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak

"You came in that thing? You're braver than I thought!" - Princess Leia
Post #655747 7th Oct 2017 9:57pm
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leeds



Member Since: 28 Dec 2009
Location: West Yorkshire
Posts: 8580

United Kingdom 
The aggregate maximum intensity of the main-beam headlamps which can be
switched on simultaneously shall not exceed 430,000 cd, which corresponds
to a reference value of 100.


This maximum intensity shall be obtained by adding together the individual
reference marks which are indicated on the several.
Post #655752 7th Oct 2017 10:58pm
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LandRoverAnorak



Member Since: 17 Jul 2011
Location: Surrey
Posts: 11324

United Kingdom 
Ok, I give up. I thought we were having a sensible discussion but there's no fun in it if you're just going to repeat the same stuff and ignore the points raised. Darren

110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak

"You came in that thing? You're braver than I thought!" - Princess Leia
Post #655913 8th Oct 2017 7:05pm
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leeds



Member Since: 28 Dec 2009
Location: West Yorkshire
Posts: 8580

United Kingdom 
LRA, a few days ago you had not heard of peak beam intensity reference number. You have even question if LED Light bars can be legal.


Now under VLR, optional main beam headlights are allowable with no restriction on number of lamps however they must have either a British Standards mark or an Approval Mark

Now apart from the UK being a signatory to the UN Vehicle Harmonisation Regulations the UK Parliament has passed an Act which accepts the UN ECE approval mark.

The fact that there is no mention of peak beam intensity reference number in the VLR is irrelevant as the UK accepts the UN ECE approval mark which has specific mention of peak beam intensity and gives a specific limit on the light output from main beam headlamps.

There is a number stipulated for obligatory vehicle main beam headlights under VLR which is 2 and the more up to date UN ECE number is 2 or 4 dependent on vehicle class.

Now under UN ECE regulations concerning Main Beam Headlamps

Quote:


This maximum intensity shall be obtained by adding together the individual
reference marks which are indicated on the several.




There is no mention of Obligatory or Optional main beam headlamps with regard to Peak Beam Intensity. The Peak beam reference is to Main Beam Headlamps


Now the maximum is achieved by adding the reference mark of the several


Definition of several

Quote:


More than two but not many




So minimum number of main beam headlamps must be three which exceeds the obligatory number of headlamps on a Defender.

Now I am unaware of any main beam headlamp which has a reference number of 50!

I hope that explains things!


Brendan
Post #656231 9th Oct 2017 9:44pm
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miker



Member Since: 13 Sep 2015
Location: Surrey
Posts: 1763

United Kingdom 1999 Defender 110 Td5 CSW Rioja Red
Jeez. I have approximately as many lights as I deem fit bolted to the front of my land rover, have them three way switched (manual, with main beams, off) and only use them where safe and appropriate.

I think that's adequate!
Post #656276 10th Oct 2017 9:08am
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