I-NELE-11.doc Issue 05 18/07/2018 5
NEXLED EMERGENCY (IEx)
ENGLISH
3.9 Battery Maintenance
The battery pack is a 4.2V 4Ah NiCad 4 cell pack. Periodic testing allowing full discharge will enable the cells to
remain in a healthy condition. Should the battery pack need to be replaced spares may be ordered from Chalmit
Lighting. The battery assembly must be protected from damage and water ingress then removed from any
potentially hazardous area as soon as practical.
The luminaire must not be operated without the battery connected. If the battery is removed and not replaced
the control gear supply must be disconnected at the mains terminal block and secured. Care must be taken to
connect the positive and negative terminals correctly.
3.9.1 Low temperature operation with battery heater
At temperatures near 0°C ambient the battery heater will switch on. This enables the batteries to be maintained
within their optimum temperature range down to -45°C.
4.0 Inspection and Maintenance
Visual inspection should be carried out at a minimum of 12 monthly intervals and more frequently are severe;
refer to ABNT NBR IEC 60079-17.
4.1 Electrical Fault Finding and Replacement
Any fault finding must be done by a competent electrician with the luminaire isolated and, if carried out with the
luminaire in place, under a permit to work. Fault finding is by substitution with known good components.
5.0 Routine Maintenance
Visual tests and checks should be carried out at intervals described by the appropriate regulations, ABNT NBR
IEC 60079-17, and should include the following:
Check that the LEDs are working.
Check for mechanical damage/corrosion.
Check for loose connections including earthing.
Check for undue accumulations of dust or dirt.
Verification of tightness of fixing, glands, blanking plugs etc.
Check for unauthorised modifications.
Check condition of enclosure gasket and fastenings.
Check for any accumulation of moisture.
Periodic inspection of the enclosure seal should be carried out to ensure that the seal is sound.
If the luminaire has been subject to abnormal conditions, for example, severe mechanical impact or chemical
spillage, it must be de-energised until it has been inspected by an authorised and competent person. If in doubt,
the unit should be returned to Chalmit for examination and, if necessary, replacement.
Before re-assembling, all connections should be checked and any damaged cable replaced.
Prior to any work internally the Red Battery wire should be disconnected and insulate bare conductor in
a spare terminal, and should be the last connection made prior to closing the unit.
6.0 Disposal of Material
Any disposal must satisfy the requirements of the WEEE directive [2012/19/EU] and therefore must not be
treated as commercial waste. The unit is mainly made from incombustible materials. The control gear contains
plastic resin and electronic components. All electrical components may give off noxious fumes if incinerated.
6.1 Battery Disposal
Nickel cadmium batteries are defined as 'controlled waste' under the hazardous waste regulations and the
person disposing needs to observe a 'duty of care'.
Batteries can be returned to the manufacturers for recycling. They must be stored and transported safely and
any necessary pollution control forms completed prior to transportation. Take care to fully discharge batteries
before transporting, or otherwise ensure that there can be no release of stored energy in transit. For further
details refer to our Technical Department
