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ANNEX IU.K.REQUIREMENTS FOR CONSTRUCTION, TESTING, INSTALLATION AND INSPECTION

III.CONSTRUCTION REQUIREMENTS FOR RECORDING EQUIPMENTU.K.

(a)General pointsU.K.

7.Lighting and ProtectionU.K.
7.1The visual instruments of the equipment must be provided with adequate non-dazzling lighting.U.K.
7.2.For normal conditions of use, all the internal parts of the equipment must be protected against damp and dust. In addition they must be made proof against tampering by means of casings capable of being sealed.U.K.