The wording of Article 1 of the Directive has always been suspect.
'designed for use with a voltage rating' is not wording that any
electrical engineer would use, and really has no good interpretation.
'designed with a voltage rating' would be OK, but actually 'designed' is
superfluous.
But the 'or' means (like 'either ... or') that BOTH input and output
voltages would have to be outside the specified range to be exempt.
However, *internal voltages* are not taken into account.
John Woodgate OOO-Own Opinions Only
J M Woodgate and Associates www.woodjohn.uk
Rayleigh, Essex UK
On 2018-08-10 22:44, Regan Arndt wrote:
Hi folks.
It's been a while since I went on the europa website and I just saw
this (never noticed it before). The general europa webpage section of
the LVD has bolded the text " *input**or**output voltage* ". More
interestingly, the conjunction ‘*or*’. Some could now argue that their
HV power supply (120/240 VAC input, >1500 V output) or ESD test
equipment (4KV+), etc. is exempt from the LVD because they think they
have an option due to the interpretation (or misinterpretation) of the
word 'OR'.
(Yes, I have already seen cases like this) …….perhaps the website
should have stated “*and/or*” rather than just “*or*” or word it
differently. Again, the key point here is the word 'or'.
Also, when I was at the PSES symposium this year in San Jose, I asked
a similar question related to this and some seemed to think that this
was ‘input’ voltage only.
Your comments, opinions & advice on this topic are greatly appreciated.
Below are the excerpts:
About the Low Voltage Directive (LVD)
The LVD covers health and safety risks on electrical equipment
operating with an *input* *or* *output voltage* of between:
·50 and 1000 V for alternating current
·75 and 1500 V for direct current
Excerpt obtained from:
http://ec.europa.eu/growth/sectors/electrical-engineering/lvd-directive_en
The directive itself does not specifically call out input or output
per se. It only states ‘rating’.
*Chapter 1, Article 1:*
*/_This Directive shall apply to electrical equipment designed for use
with a voltage rating of between 50 and 1 000 V for alternating
current and between 75 and 1 500 V for direct current, other than the
equipment and phenomena listed in Annex II._/*
Excerpt from the Directive obtained from:
https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32014L0035
Regan Arndt
IEEE PSES SCV Chair
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