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protection against UV emission or lamp shattering, 标准已经写的很清楚,只有tungsten halogen lamp or metal halide lamp 才需要protective shield,LED灯具明显是不适用的。1 }3 O6 @# ]# [
1.2.71! ?; _( L- H( ^1 t3 o, ^
self-shielded lamp& K9 F' w- C, b8 |
tungsten halogen lamp or metal halide lamp for which the luminaire needs no protective shield) Y' I# O) E5 V% U7 o, ~
for protection against UV emission or lamp shattering b0 M1 ^, n0 t& K
4.21 Protective shield
# L$ t& ~" C! x9 X9 ] P# w4.21.1 Because of the possible risk of lamp shattering, luminaires designed for tungsten
& M; S( a. a/ k+ ^' L3 k4 \halogen lamps and luminaires designed for metal halide lamps shall be fitted with a protective
! U& l/ e( _: S* R$ |/ xshield. For tungsten halogen lamps, the shield shall be of glass.
5 Z; z) L2 f. {# U ?Luminaires designed to be used with self-shielded lamps only are exempt from this
4 R g2 Q# [. B- [2 V# Q. zrequirement, but shall be marked with the appropriate symbol (see Figure 1). |
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