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028 CORRESPONDENCE
LETTERS
DRIVING IRRESPONSIBLY? We feel it is important to ensure that an appropriate LED system for the
Dear Editor any information written and published application.
We were disappointed to see a for general consumption is accurate and At present, with no formal rating
major article, ‘Driving Responsibly’ not misleading, and while we have the system in place clients must simply
by Dr. Geoff Archenhold in the LED utmost respect for our competitors and trust the manufacturers’ claims. I think
Technology section of mondo*arc #48 fellow LED manufacturers, we felt this this is both wrong and ‘dangerous’. It
2009, portrayed as that written by a response to set the record straight was allows those manufacturers with huge
Government Advisor, when said person desirable. marketing budgets to overshadow
is actually a Director of one of the many Yours sincerely smaller companies, some of which are
UK companies that produce products for Chris A. Rolph extremely diligent in their electronic
the LED market. Managing Director design. From our perspective it means
As such, it was not the impartial view of Tryka L.E.D. Ltd we are often compared with fittings
an independent advisor, but rather that that are very poorly designed because
of one individual company. (To read Dr. Geoff Archenhold’s to the untrained eye, one linear LED
Whilst much of the article was positive, detailed response go to: fitting, for example, looks very similar
it also contained technical inaccuracy. www.mondoarc.com/technology/LED/) to the next.
In particular, that referring to the “New We cannot expect to become electronic
LED Standard IEC 61347-2-13”. This is TIME FOR STANDARDS engineers overnight so I would suggest
not a “new standard”, it was published Dear Editor a simple rating system, similar to
in July 2006. The date quoted, of 1st I have read with great interest Dr. the EU Energy Label, that cover the
July 2009, is the date by which any Geoff Archenhold’s recent articles in ‘layers’ involved in the manufacture
conflicting European Standard must be mondo*arc and found them honest and of an LED fixture; LED chip, Printed
withdrawn. informative. I was particularly taken Circuit Board composition and design,
Whilst it is true that this standard is a with your statement in a recent article: peripheral electronic component
safety standard that relates specifically “I implore all LED fixture manufacturers quality, connections both of PCB
to d.c. or a.c. supplied electronic to state realistic and actual operational components and PCB’s joined together,
control gear for LED modules, the figures on their data sheets so the interconnecting cables, thermal factors,
requirements contained therein are industry maintains a professional quality of power supply, compatible
not new, but were simply contained standard.” control and life expectancy linked to
within other standards (IEC 61347-1, IEC It is becoming very apparent that the project. ‘A’, for example, would be
60598-1, etc.). industry needs to formulate a rating of highest standard and ‘G’ a very
The comments concerning the RJ45 system or standard for the quality simple fitting that may not have a
connector and output voltage were also of electronic components within LED long life expectancy etc. We do not
incorrect. light fittings. I had an overwhelming want a complex hierarchal system
The issue, concerning single insulation response to my letter that you kindly that makes the process complicated
or double insulation, concerns the printed in the Feb/March issue 47 of and subsequently worthless. (Dare I
insulation between the mains input and mondo*arc raising the issue. This has say, like a BS standard!) We also need
the low voltage output, and not that made me all the more determined to to ensure there is a place for those
of the RJ45 connector itself. This input push for a rating system that is easy cheaper fittings that are still very valid
to output insulation must be Double to understand but well researched and in certain applications.
Insulated for any product with an thorough. With the demise of incandescent and
isolated output that is compliant to IEC As a supplier of the highest standards in much R&D going into LEDs to replace
61347-2-13. electronic components, we are finding existing technology, the time is right to
The RJ45 connector is therefore both clients such as lighting consultants, implement such a system.
suitable and compliant to IEC 61347-2- architects, interior designers, I have recently approached the Carbon
13 provided that the LED Driver output contractors, electrical consultants and Trust for their response to this proposal.
voltage meets the requirements for end users very confused and in most Have you suggestions of how to move
SELV (Safety Extra Low Voltage) or SELV respects misinformed with regards this forward? There is certainly a
Equivalent control gear. to what constitutes a sound set of demand...
Tryka L.E.D. endorse the publication criteria for specifying LED fittings. And Regards
of IEC 61347-2-13 and are pleased to as a manufacturer we are spending Jon Estell BA (Hons)
confirm that the Tryka range of drivers large quantities of time explaining Associate Director
and our latest Easy-Link Driver is fully and educating clients as to what Insta UK Limited
compliant to same. factors they should use in choosing
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