Double-capped fluorescent lamp - Safety specifications
1 Scope
This document specifies the safety requirements for double-capped fluorescent lamps for general lighting purposes of all groups having Fa6, Fa8, G5, G13, 2G13, R17d and W4.3×8.5d caps.
It also specifies the method a manufacturer should use to show compliance with the requirements of this standard on the basis of whole production appraisal in association with his test records on finished products. This method can also be applied for certification purposes. Details of a batch test procedure which can be used to make limited assessment of batches are also given in this standard.
This document covers photobiological safety according to IEC 62471.
Blue light and infrared hazards are below the level which requires marking.
Note: Compliance with this standard concerns only safety criteria and does not take into account the performance of double-capped fluorescent lamps for general lighting purposes with respect to luminous flux, colour, starting and operational characteristics. Readers are referred to IEC 60081 for such characteristics.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of IEC and ISO maintain registers of currently valid International Standards.
IEC 60061-1 Lamp caps and holders together with gauges for the control of interchangeability and safety - Part 1: Lamp caps
Note: GB/T 1406 (all parts), Types and dimensions of lamp caps (IEC 60061-1)
IEC 60061-3 Lamp caps and holders together with gauges for the control of interchangeability and safety - Part 3: Gauges
Note: GB/T 1483 (all parts), Gauges for lamp caps and holders (IEC 60061-3)
IEC 60081 Double-capped fluorescent lamps - Performance specifications
Note: GB/T 10682-2010, Double-capped fluorescent lamps - Performance specifications (IEC 60081:2005, NEQ)
IEC 60695-2-10 Fire hazard testing - Part 2-10: Glowing/hot-wire based test methods - Glow-wire apparatus and common test procedure
Note: GB/T 5169.10-2017, Fire hazard testing for electric and electronic products - Part 10: Glowing/hot-wire based test methods - Glow-wire apparatus and common test procedure (IEC 60695-2-10:2013, IDT)
IEC 60921 Ballasts for tubular fluorescent lamps - Performance requirements
Note: GB/T 14044-2008, Ballasts for tubular fluorescent lamps - Performance requirements (IEC 60921:2006, MOD)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
Double capped fluorescent lamp
double-capped low-pressure mercury discharge lamp of tubular form in which most of the light is emitted by a layer of fluorescent material excited by the ultra-violet radiation from the discharge
3.2
group
lamps having the same electrical and cathode characteristics, the same physical dimensions and the same starting method
3.3
type
lamps of the same group (3.2) having the same photometric and colour characteristics
3.4
family
lamp groups (3.2) which are distinguished by common features of materials, components, lamp diameter and/or method of processing
3.5
nominal wattage
wattage used to designate the lamp
3.6
design test
test made on a sample for the purpose of checking compliance of the design of a family (3.4), group (3.2) or a number of groups with the requirements of the relevant clause
3.7
periodic test
test, or series of tests, repeated at intervals in order to check that the product does not deviate in certain respects from the given design
3.8
running test
test repeated at frequent intervals to provide data for assessment
3.9
batch
all the lamps of one family (3.4) and/or group (3.2) identified as such and put forward at one time for testing to check compliance
3.10
whole production
production during a period of twelve months of all types of lamps within the scope of this standard and nominated in a list of the manufacturer for inclusion in the certificate
3.11
specific effective radiant UV power
effective power of the UV radiation of a lamp related to its luminous flux
Note: Specific effective radiant UV power is expressed in mW/klm. The effective power of the UV radiation is obtained by weighting the spectral power distribution of the lamp with the UV hazard function SUV (λ). Information about the relevant UV hazard function is given in IEC 62471 . It only relates to possible hazards regarding UV exposure of human beings. It does not deal with the possible influence of optical radiation on materials, like mechanical damage or discoloration.
4 Safety requirements
4.1 General
Lamps shall be so designed and constructed that in normal use they present no danger to the user or surroundings.
In general, compliance is checked by carrying out all the tests specified.
Note: Where testing can become unnecessarily difficult due to the lamp length, methods to alleviate the problem may be agreed between the supplier and the certification authority.
4.2 Marking
4.2.1 The following information shall be legibly and durably marked on the lamps:
a) mark of origin (this may take the form of a trade mark, the manufacturer's name or the name of the responsible vendor);
b) the nominal wattage (marked "W" or "watts") or any other indication which identifies the lamp.
4.2.2 Compliance is checked by the following:
a) presence and legibility of the marking by visual inspection;
b) durability of marking by applying the following test on unused lamps.
1) The area of the marking on the lamp shall be rubbed by hand with a smooth cloth dampened with water for a period of 15 s.
2) After this test, the marking shall still be legible.
4.3 Mechanical requirements for caps
4.3.1 Construction and assembly
Caps shall be so constructed and assembled to the bulbs that they remain attached during and after operation. Compliance is checked by the following tests:
4.3.1.1 For lamp types using caps G5, G13 and R17d:
a) for unused lamps compliance is checked by applying a torque test to the pins, as follows:
the lamp cap shall remain firmly attached to the bulb and there shall be no rotational movement between component parts of the cap exceeding an angular displacement of 6° when subjected to the torque levels listed in table 1.
Table 1 - Torque values for unused lamps
The torque shall not be applied suddenly but shall be increased progressively from zero to the value specified in table 1.
The test holders for the application of the torque are shown in annex A. The test holder for the R17d cap is under consideration;
b) following a heating treatment for a period of 2000 h ± 50 h at a temperature of 120 °C ± 5 °C, the cap shall remain firmly attached to the bulb and there shall be no rotational movement between component parts of the cap exceeding an angular displacement of 6° when subjected to the torque levels specified in table 2.
For G13 capped lamps with a nominal wattage greater than 40 W, the heating shall be performed at a temperature of 140 °C ± 5 °C.
Table 2 - Torque values after heating treatment
4.3.1.2 For lamp types using caps Fa6 and Fa8, compliance is checked by inspection on
unused lamps.
4.3.1.3 For lamp types using cap 2G13:
a) for unused lamps the cap shall remain firmly attached to the bulb when subjected to an axial pull of 40 N or a bending moment of 3 N•m. The bending moment shall be applied by holding in a uniform manner that part of the glass tubes closest to the cap, the pivot point lying at the cap reference plane (mating plane with the lampholder). The pulling force and bending moment shall not be applied suddenly but shall be increased gradually from zero to the specified value;
