e27 lampholders - Spotled
e27 lampholders - Spotled
e27 lampholders - Spotled
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TECHNICAL INFORMATION<br />
LIGHTING FIXTURES<br />
The lighting fixture is a complex object since it must carry out<br />
many different functions, such as:<br />
• mechanical<br />
• electric<br />
• thermal<br />
• photometric<br />
• aesthetic<br />
The mechanical and electric protection issue is very important<br />
considering what is contained inside the fixture and with<br />
regard to users. In some cases, the protection becomes a real<br />
impenetrable barrier against elements such as water, rain,<br />
snow, frost, wind, dust as well as polluting and corrosive<br />
substances. The fixture is designed like a shell that conserves<br />
the functions of all components over time.<br />
Protection against the action of liquids, dust and solid matter<br />
is expressed by the degree of protection. The code IP is<br />
followed by two characteristic digits:<br />
• the first digit indicates the degree of protection against solid<br />
matter and dust,<br />
• the second digit indicates the degree of protection against<br />
penetration by liquid substances (and rain in particular).<br />
DEGREES OF PROTECTION IP<br />
0<br />
1<br />
2<br />
3<br />
4<br />
5<br />
6<br />
FIRST CHARACTERISTIC DIGIT<br />
Not protected<br />
Protected against solid matter larger<br />
than 50 mm (hand simulation)<br />
Protected against solid matter<br />
larger than 12 mm (finger<br />
simulation test)<br />
Protected against solid matter<br />
larger than 2.5 mm<br />
(screwdriver simulation)<br />
Protected against solid matter larger<br />
than 1 mm (metal wire simulation)<br />
Protected against dust (limited and<br />
not on conducting parts)<br />
Totally protected against dust<br />
(no trace)<br />
SECOND CHARACTERISTIC DIGIT<br />
0<br />
1<br />
2<br />
3<br />
4<br />
5<br />
6<br />
7<br />
8<br />
Not protected<br />
Protected against vertically<br />
falling rain<br />
Protected against the rain with a<br />
maximum angle of 15° with respect<br />
to the vertical<br />
Protected against the rain with a<br />
maximum angle of 60° with respect<br />
to the vertical<br />
Protected against sprays at 360°<br />
Protected against water jets<br />
Protected against waves<br />
Watertight against immersion<br />
(up to 1 m)<br />
Watertight against submersion<br />
(beyond 1 m)<br />
228<br />
ARDITI S.p.A.<br />
24012 BREMBILLA (BERGAMO) ITALY - Via Caberardi, 3 - Tel. +39 0345 52111- Fax +39 0345 52355 - Internet: http://www.arditi.com - E-mail: arditi@arditi.com
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