EMC
EMC stands for Electro Magnetic Compatibility.
This means the product’s ability to functionin in its environment
without causing or being subject to electrical or electromagnetic
interference.
An EU directive refers to prevailing European Norms for electrical
interference from a product (EN 50081) and a product’s resistance to
electrical interference (EN 50082).
For light fittings we have
our own product norms that supersede these. These are EN 61547 for
immunity and EN 55015 for radiated interference.
Since the
introduction of the EMC directive Glamox has built up a comprehensive
laboratory where we can carry out the relevant tests ourselves. As a
result we have built up a sound expertise in the field.
Heat
An
important criterion for the approval of light fittings is the
temperature of vital components. We have a laboratory for conducting
standard heat measurement tests for most conditions. We have our own hot
box for simulating environments from -40°C to +100°C. We have draught
proof rooms to conduct standard tests at 25°C.
The importance of
heat measurement is becoming ever greater as electronics become more
common in luminaires. As a rule of thumb, the lifetime of an electronic
component will double for every ten degrees reduction in ambient
temperature. It is therefore important to place an HF reactor in a cool
place. «Ta» stands for Temperature Ambient – or ambient temperature. If
the luminaire is not specially labelled it is designed for normal Ta =
25°C. Glamox has products designed for use in environments from - 40°C
to + 55°C.