www.elt.es
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4.4. Out-of-range mains voltage protection
The iLC CORE control gear is designed to withstand temporary fluctuations in mains voltage that are outside the
permitted range.
In the event of a low mains voltage value that is between the permitted minimum and the brownout value, the driver
will remain on. If this situation continues over time resulting in over-heating, the driver will reduce the power supplied
to the load and even disconnect it in extreme cases.
In the event that a mains voltage value is less than the brownout value, the driver switches itself off for protection.
In the event that a mains voltage is above the maximum permitted value, the driver will remain on, generating stress
on its internal components and potentially affecting its lifetime. Possible adverse effects are increased the greater
the value and the longer the time that the power surge continues.
Even though the drivers are able to withstand power surges of 380Vac for 2 hours, extreme care must be taken to
avoid this type of situation.
4.5. Shock wave protection
The iLC CORE drivers are designed to offer improved protection of the supply terminals against shock waves such
as those caused by radio storms. They benefit from levels of protection, in both differential and common modes, that
are higher than the minimums defined by the immunity requirements for lighting equipment under EN 61547.
▪
Protection in differential mode (L - N): 6kV / 3kA
▪
Protection in common mode (L - Earth / N - Earth): 8kV
If higher levels of protection are required, external devices can be added to the luminaire or to another point in the
street lighting installation.
NOTE:
Fault conditions and the response of each model can be viewed on their corresponding data sheets, available for download via the
ELT website at
www.elt.es/en
Normal operating
75% power reduction
NO
NO
YES
YES
NO
YES
YES
tc > tc max. +6º
tc < tc max. -6º
tc < tc max. -6º
tc > tc max. +8º
Power on
10% power reduction
