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25 Expelled parts
# G$ l. t' l# C" u( H& x# @25.1 Where expelled parts could constitute a SAFETY HAZARD protective means shall be provided.
7 y: B/ F9 F' o) I* u0 F+ [2 bCompliance is checked by inspection for the presence of protective means.
- e9 R9 w' O3 @25.2 A graphical display vacuum tube whose maximum face dimension exceeds 16 cm shall either be
; b/ ?6 c8 V, \7 U& k, Q1 cintrinsically safe with respect to effects of implosion and to mechanical impact, or the ENCLOSURE of the
, y8 h4 N2 H2 f1 L7 t5 ^EQUIPMENT shall provide adequate protection against the effects of an implosion of the tube.
' S# _( b; L! e" VA non-intrinsically safe tube shall be provided with an effective protective screen which cannot be& A6 H; Z, T6 ^# c/ J7 Q
removed without the use of a TOOL; if a separate screen of glass is used, it shall not be in direct contact- F' |; N- G! w( r
with the surface of the tube.
0 e- T% S n+ T* _The tube shall be tested as specified in IEC Publication 65, unless a certificate of the testing is provided. |
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