Also note that lifts come under the Machinery Directive, thus the auspices of ISO 12100.
All of the above standards reference IEC 60364.
As will the requirements of the MD.
Under the requirements of the MD, EHSR 1.1.4 states the following:
Machinery must be supplied with integral lighting suitable for the operations concerned where the absence thereof is likely to cause a risk despite ambient lighting of normal intensity. Machinery must be designed and constructed so that there is no area of shadow likely to cause nuisance, that there is no irritating dazzle and that there are no dangerous stroboscopic effects on moving parts due to the lighting. Internal parts requiring frequent inspection and adjustment, and maintenance areas must be provided with appropriate lighting.
MD guidance states:
§179 Integral lighting The machinery manufacturer is entitled to assume that the ambient lighting in the place of use is of normal intensity. Normal intensity can be judged, for example, by taking into account the levels for indoor and outdoor workplaces indicated in standards EN 12164, parts 1 and 2.106 The first paragraph of section 1.1.4 requires the manufacturer to provide lighting integral to the machinery when normal ambient lighting is likely to be inadequate to ensure safe operation of the machinery. Such lighting may be necessary, for example, at work stations that are likely to be in the shade or in enclosed or covered work stations or cabs. Such lighting may also be necessary where the visual tasks of the operators require a higher level of luminance than is likely to be provided by the ambient lighting. The third paragraph of section 1.1.4 adds the requirement for integral lighting for internal parts to which access is frequently required for inspection, adjustment and maintenance purposes. The second paragraph of section 1.1.4 concerns the design of the integral lighting, to ensure that it does not generate other hazards. Specifications for integral lighting are given in standard EN 1837
EN 1837 calls the emergency lighting standards, and EN 12100.
It also states the following:
5.4 Availability of illumination
Where failure of the integral lighting system of the machine can give rise to dangerous conditions the lighting system shall consist of more than one light source. One of these sources shall be supplied from an alternative electrical supply.
Regardless of whether the lift is in a workplace or not, it is still a machine, and is more so a machine operated by the general public, and still must comply with the machinery directive, therefore IMHO the lift "engineer" is a muppet, and, the provision of a second maintained EM light is required by the machinery directive, if failure of the main light could cause danger. Which is reasonably foreseeable, and thus, must be accounted for.
QED for tonight guys.
HTH.