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Safety of T8 lamp replacement tubes and modifi ed luminaires

Safety of T8 lamp replacement tubes and modifi ed luminaires

T8 fluorescent tube replacements using LED or T5 fluorescent lamp adaptor technologies are extensively marketed in Australia and New Zealand. These are intended to replace traditional T8 fluorescent tubes either in existing luminaires or in modified luminaires to reduce energy consumption

Electrical Regulatory Authorities Council (ERAC) has expressed serious concerns with both the LED replacement tubes and T5/T8 fluorescent lamp adaptor assemblies. These concerns are not limited to the lamp products themselves; ERAC is also concerned with the modifications carried out to existing luminaires.

This recommendation is within the framework of current safety legislation, regulations and standards, and as such is intended to provide clarification for particular products. It does not represent any change in the current safety system.

Discussion

Recent enforcement actions on LED T8 or T8/T5 fluorescent lamp adaptor replacement tubes by Australia, New Zealand and countries in Europe have shown instances where these products do not comply with essential safety requirements, such as protection against electric shock. In Australia and New Zealand these safety principles are specified in AS/NZS 3820.

There have been reports of failures of insulation causing the metal enclosure body of such devices to become live and present an electric shock risk. Another electrical hazard that may be present in some designs is access to live parts. In some designs, with one end of the tube inserted in the luminaire, the other end is live and presents a possible accessible electric shock hazard. This is not a best practice for electrical safety design as it would require work practices and procedures to reduce the risk of electric shock. A better design would be to remove the risk by ensuring supply to the product is via one end only.

Currently there is no specific electrical safety standard for these products that could be used to cover all electrical risks. Therefore, designers, manufacturers, importers and suppliers would need to apply requirements from several electrical safety standards and engage in good engineering design principles to ensure the products are made in a manner that is electrically safe. Failure to apply appropriate standards in design, manufacturing and testing of these products may result in an unsafe product.

These issues are under discussion by the Australian and New Zealand electrical safety standards committee for lighting products (EL-041). The committee is concerned that some manufacturers, importers, distributors and retailers may not be fully aware of the potential safety risks relevant to the replacement tubes they manufacture, import or supply. It was also recognised that guidance, in the form of a recommendation, would be helpful to assist the suppliers in understanding these risks and also the actions required to meet electrical safety requirements.

LED T8 tubes and T8/T5 fluorescent lamp adaptor assembly retrofit systems

Suppliers placing LED T8 or T8/T5 fluorescent lamp adaptor assembly systems on the market that are intended as either direct replacement in the original luminaire (retrofit luminaire) or for use in a new luminaire are responsible for ensuring that these products are safe and comply with electrical safety requirements.

Modified luminaires

For a modified luminaire, the manufacturer of the original luminaire will no longer be responsible for compliance of the modified product. Any modifications made to the original luminaire may alter the characteristics of the original product, for example, the safety aspects of the original luminaire, hence compliance assessments of the original luminaire may no longer be applicable to the modified luminaire. In this case, the modified luminaire will be considered to be a new luminaire. Persons placing on the market modification kits for incorporation into an existing luminaire must ensure that the modified luminaire is safe when the kit is installed in accordance with their supplied instructions.

When placing a modified luminaire on the market or modifying a luminaire on site, the modified product should comply with the requirements outlined below in this document for new luminaires. Therefore the supplier responsible for placing such product on the market has the full responsibility for ensuring its safety and compliance with all applicable standards.

Requirements for new luminaires (including modified luminaires)

1/ A new luminaire must be safe and should comply with AS/NZS 60598.1 and any relevant part 2.

2/ A new luminaire shall be marked with a warning label that is visible while replacing lamps. This warning label must be legible and indelible and show the intent of ‘Warning – not for use with any fluorescent lamps, use only <Brand> <Model Number> LED Lamp’.

3/ A new luminaire must have a fuse to protect against short-circuits. This fuse must:

be of the HRC type and the new luminaire shall have a fuse replacement rating label;

be of suitable rating;

not be accessible when replacing the lamp; and

be accessible only with the use of a tool. 4/ Where a luminaire is modified to use a LED or

T8/T5 fluorescent lamp adaptor, the luminaire must continue to be safe if a T8 fluorescent lamp is re-installed, although it does not have to function.

Requirements for retrofit luminaires

1/No modification of the original luminaire is allowed. It is assumed that the originalluminaire will have been fully compliant with AS/NZS 60598.1 and any applicable part 2.

2/The replacement of a glow starter compliant with AS/NZS 60155 with other devices does not constitute a modification of the luminaire itself. However the use of such devices should not compromise safety when used in luminaires.

Requirements for LED tubes

1/ The tube shall comply with the requirements of: AS/NZS 61347.1, IEC 61347.2.13 and relevant requirements of AS/NZS 60598.1; Note: IEC 62031 may be used in lieu of IEC 61347.2.13

2/ Irrespective of the standards mentioned above, where the product has unique characteristics, assessments of safety must adequately cover all risks of the product. This may involve the use of several other Australia and New Zealand standards and/or international standards and other assessments to ensure the product is electrically safe.

3/ Assessment of the tube to ensure no access to live parts can be achieved during installation.

4/ Full installation instructions and diagrams shall be provided.

5/ LED tube shall be capable of being fitted into an un-modified luminaires without causing a safety hazard, although it does not have to function.

Requirements for T8 to T5 fluorescent lamp adaptor assemblies

1/ The adaptor is a prescribed/declared article and shall be safety approved as a ‘Fluorescent lamp ballast’.

2/ The fluorescent lamp adaptor assembly shall comply with AS/NZS 61347.1, AS/NZS 61347.2.3 and relevant requirements of AS/NZS 60598.1.

3/ Irrespective of the standards mentioned above, where the product has unique characteristics, assessments of safety must adequately cover all risks of the product. This may involve the use of several other Australia and New Zealand standards and/or international standards and other assessments to ensure the product is electrically safe.

4/ Assessment of the adaptor to ensure no access to live parts can be achieved during

http://www.esv.vic.gov.au/LinkClick.aspx?fileticket=rZpmyk680JE%3d&tabid=404&mid=2135

http://www.ledtubelighting.com.au/

We all know that LED T8 tubes are more energy efficient than LED fluorescent tubes. But I am a little bit confused about the lasting about this product. I know that the product is affordable by all. Anyway, I really appreciate the blog. Keep up the good work in the future by posting such type of blogs.

Safety of T8 lamp replacement tubes and modifi ed luminaires |

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In spite of the fact that a

In spite of the fact that a LED T8 tubes may appear as a bit pricier than the usual bulbs found in the market, there is still a heavy demand for the same that keeps increasing by the day. The reason behind this phenomenon, is the number of distinctive features of this kind of LED lights, in addition to a logical fact that a normal bulb has a shorter life span, where as an LED light tube would not only give you much brighter effect but also last for years depending upon the usage.

Thanks for a great post. Keep it up. Carol / http://www.ai-m.net

Safety of T8 lamp replacement tubes and modifi ed luminaires |

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