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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。
- s# Q0 L( i8 R# B9 d$ l! t* p4 u1.2.71
& q+ ]1 y3 v( N( Bself-shielded lamp5 i5 i$ ]7 l# J2 D1 W) s8 B2 ]
tungsten halogen lamp or metal halide lamp for which the luminaire needs no protective shield% ^" S7 X1 X# ~. N) ~
for protection against UV emission or lamp shattering0 e6 S0 e( d0 }( {& G+ G
4.21 Protective shield) n: E7 C5 u/ w0 t5 |# [+ _# \
4.21.1 Because of the possible risk of lamp shattering, luminaires designed for tungsten9 d1 L8 S" I% D' M
halogen lamps and luminaires designed for metal halide lamps shall be fitted with a protective8 D7 B' [3 w8 A |! ~
shield. For tungsten halogen lamps, the shield shall be of glass.
1 I/ O! _* n, Q. oLuminaires designed to be used with self-shielded lamps only are exempt from this9 z( M% e& L# Z# D
requirement, but shall be marked with the appropriate symbol (see Figure 1). |
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