Another earlier safety warning about LEDs from the Swedish National Electrical Safety Board (posted and translated by Greenwashing Lamps).
Banned LED bulbs
Dec 14, 2011
With the new energy conservation requirements, incandescent bulbs be phased out, increasing interest in alternative lighting. The National Electrical Safety Board has recently given a variety of LED lamps sales ban.
The most common reason is electrical grid disturbances, but they also interfere with radio frequencies. The lamps which the Safety Board has looked at are the incandescent bulb replacement LED bulbs. They are based on modern LED technology and all the lamps tested contain a small power pack, situated in the lamp socket.
Result of market supervision
More than half of the LED lights purchased through the market and tested have received sales bans. This is a remarkably high figure, which may be because most of the lights checked had built-in dimming, i.e. that they are dimmable.
Dimmable LED lamps contain control electronics that often require specific measures to achieve acceptable properties to make electrical devices work together, known as electromagnetic compatibility (EMC). This is sometimes overlooked by the lamp manufacturers.
It is important to you as a manufacturer or importer to ensure that the LEDs have been tested properly with EMC.
How does the disturbance manifest?
LEDs produce disturbances in the distribution system which, among other things, can cause radio interference. Radio interference caused by the conducted noise radiating from the connected wires. This is because the lines, e.g. to the luminaire, act as transmitting antennas for conducted interference. The disturbance may affect other electrical products in the local area, even those that are not connected to an outlet. It can also affect communication such as wireless broadband and telephony.
What rules apply for manufacturers?
The Electrical Safety Authority on electromagnetic compatibility (ELSÄK-FS 2007:1) has to be followed. Regulations based on the EMC Directive (2004/108/EC EMCD).
Cooperation within the EU about LED lights
There is currently a campaign in the EU where LED lighting examined. The aim is to investigate if the new LED lights on the market comply with applicable EMC requirements.
A few months later, EU authorities found similar problems:
Disruptive LEDs are examined in the EU
Feb 10, 2012
The National Electrical Safety Board has in 2011 looked into LED lights, half of which got sales bans. The reason for the bans is that the lights did not meet the applicable requirements for electromagnetic compatibility (EMC).
The lights disrupted other electrical products. Only one in five LED lamps passed the test without comment.
In parallel with the National Electrical Safety Board’s market surveillance of LED lights, the EU carried out an investigation. The EU surveillance is not strictly comparable to the Safety Boards’s market surveillance, but shows similar shortcomings. The results also show that manufacturers who use LED technology are very poor at complying with the Directive.
– The reason for this is that LED technology is so new and there have appeared many new manufacturers in the market that are simply not aware of the directive, said Ulf Johansson at the Safety Board.
One of several measures aimed at improving the situation is that the European Commission gives the European Committee for Standardisation mandate to supplement and clarify standards in the field. The aim is to help traders in the market to more easily use the current rules.
The National Electrical Safety Board will, in line with other market surveillance authorities in the EU, check the LEDs in 2012 as well. It also plans to follow up on last year’s surveillance with a campaign aimed at improving information about the LED lights.