BS EN 1366-4:2006 pdf download – Fire resistance tests for service installations — Part 4: Linear joint seals 7.5 Induced movement The various possibilities to impose mechanically induced movement, including standard conditions, are described in Annex B. 8 Conditioning The test construction shall be conditioned in accordance with EN 1363-1. 9 Application of instrumentation 9.1 General The control, monitoring and recording equipment shall be in accordance with EN 1363-1. 9.2 Thermocouples 9.2.1 Furnace thermocouples Plate thermometers shall be provided in accordance with EN 1363-1. The plate thermometer shall be located in a plane 100 mm from the exposed face of the separating element. At least one thermometer shall be provided for every 1,5 m² of the heated area of the test construction, subject to a minimum number of four thermometers for each test construction. These thermometers shall be symmetrically distributed with respect to the heated area of the test construction. For vertical test constructions, the plate thermometers shall be oriented so that side ‘A’ faces the walls of the furnace opposite the test construction being evaluated. For horizontally oriented test constructions, side ‘A’ of the plate thermometers positioned below the test construction being evaluated shall face the floor of the furnace . 9.2.2 Unexposed face thermocouples Surface temperature measurements and the thermocouples shall be in accordance with EN 1363-1. The test specimen thermocouples shall be at the centre line of the linear joint seal. Figures 5 to 11 and 13 show examples of thermocouple application. In the case of non-planar surfaces the disc and the pad shall be deformed to follow the surface profile. In the case of small sections it is permissible to reduce the size of the pad to a minimum dimension of 12 mm. If a linear joint seal is recessed from the unexposed face of the supporting construction and the linear joint seal is less than 12 mm wide, thermocouples shall be installed on the supporting construction at a distance of not more than 15 mm from the joint seal (see Figure 13). If a potential weak point can be identified, additional fixed thermocouples shall be attached to this point, e.g. over a splice. Where it is impractical to attach thermocouples because of the nature of the surface of the linear joint seal (which may change significantly during the test period), careful use may be made of a roving thermocouple. 9.2.3 Roving thermocouple The information obtained...
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