BS 54-11:2001 pdf download – Fire detection and fire alarm systems — Part 11: Manual call points The colour of the visible surface area of the manual call point when mounted in accordance with 5.1.3 shall be red, except for: a) the operating face; b) the symbols and lettering on the front face specified in 4.7.3.2; c) the special tool access, cable entry holes and screws. The colour of the operating face other than symbols and lettering specified in 4.7.3.3 shall be white. The colour of the visible part of the operating element (type B manual call point) shall be black. NOTE Suitable red, white and black colours are specified in ISO 3864. 4.7.3 Symbols and lettering 4.7.3.1 General The manual call point shall be marked, with the appropriate symbols shown in Figure 3, as specified in 4.7.3.2 and 4.7.3.3. Examples of the arrangement of symbols on type A and type B manual call points are given in Figures 4 and 5 respectively. 4.7.3.2 Symbols and lettering on the front face 4.7.3.2.1 On the front face above the operating face and central to the vertical centre line shall be the symbol in accordance with Figure 3 a). This symbol may be supplemented with the word “FIRE” or equivalent words in the national language. This combination shall be on the front face and above the operating face and central to the vertical centre line. The height of the symbol shall be at least 0,15 a and the height of the lettering shall not exceed the height of the symbol. The lettering shall be in accordance with ISO 3098-0:1997, “lettering type B, vertical (V)”. Symbols and lettering shall be white in accordance with ISO 3864:1984. 4.7.3.2.2 Markings other than specified in 4.7.3.2.1 (such as company logo or contact address) shall be restricted to the area of the front face below the horizontal centre line of the operating face. The total area for this marking other than red shall not be greater than 5 % of the area of the front face. 4.7.3.3 Symbols and lettering on the operating face 4.7.3.3.1 The operating face of type A manual call points shall be marked with the symbol in accordance with Figures 3 c). The operating face of type B manual call points shall be marked with the symbols in accordance with Figures 3 b) and 3 d). The symbol in accordance with Figure 3...
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