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 184.108.40.206;
c) the special tool access, cable entry holes and screws.
The colour of the operating face other than symbols and lettering specified in 220.127.116.11 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
The manual call point shall be marked, with the appropriate symbols shown in Figure 3, as specified in 18.104.22.168 and 22.214.171.124. Examples of the arrangement of symbols on type A and type B manual call points are given in Figures 4 and 5 respectively.
126.96.36.199 Symbols and lettering on the front face
188.8.131.52.1 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.
184.108.40.206.2 Markings other than specified in 220.127.116.11.1 (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. 18.104.22.168 Symbols and lettering on the operating face 22.214.171.124.1 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 b) shall point to the operating element and shall remain clearly visible when the frangible element is broken or displaced. These symbols may be supplemented by appropriate words for instruction. Where supplementary wording is used, this shall indicate position and/or operating action (e.g. “PRESS HERE”). These symbols and lettering for any supplementary instructions shall be black with the black area not exceeding 10 % of the area of the operating face. NOTE A suitable black colour is specified in ISO 3864:1984.
126.96.36.199.2 Markings other than specified in 188.8.131.52.1 (such as company logo or contact address) shall be restricted to the upper and/or the lower 25 % of the area of the operating face and shall not interfere with the symbols. The total area for this marking other than white shall not be greater than 5 % of the area of the operating face.
4.7.4 Protection against accidental operation
In addition to the use of the frangible element other means of protection may be used, e.g. a transparent flap.
Where used, the protection shall be easily and immediately removable and shall have clear instructions for its removal in order to operate the manual call point.
With the protection in place, the appearance of the manual call point, the instructions for its operation and the state of the manual call point in the normal and alarm condition shall be clearly visible.
4.7.5 Environment category
The environment category (i.e. indoor or outdoor use, special environmental conditions) of the manual call point shall be specified by the manufacturer.