Загальні методи вогневих випробувань. визначення показників тепловиділення та димоутворення кабелів під час випробування на поширювання полум'я

Table 1.1 (continued)

The 15 columns with automatically recorded data are in accordance with, and in the same order as below.

1. Time (t), in s (with 3 s time interval); at the start of recording of data, t = 0 by definition.

2. Mass flow rate of propane gas to the burner (m_gas) in mg/s.

3. Pressure difference between the two chambers of the bi-directional probe (Ap), at the general measuring section in the exhaust duct, in Pa.

4. Transmission recorded by the smoke system at the general measuring section in the exhaust duct, in %.

5. O₂ concentration in exhaust flow (xO₂), sampled at the gas sampling probe in the general measuring section in the exhaust duct, in %.

NOTE The oxygen and carbon dioxide concentrations are measured only in the exhaust duct; both concentrations are assumed to be constant in the air that enters the test room. It should be noted that the air supplied from a space where oxygen is consumed (e.g. by fire tests) can not fulfil this assumption.

6. CO₂ concentration in exhaust flow (xCO₂), sampled at the gas sampling probe in the general measuring section in the exhaust duct, in %.

7. Ambient temperature (T_o) in the test room in K.

8. Temperature measured by thermocouple 1 (T^ in the general measuring section in the exhaust duct, in K.

9. Temperature measured by thermocouple 2 (T₂) in the general measuring section in the exhaust duct, in K.

10. Temperature measured by thermocouple 3 (T₃) in the general measuring section in the exhaust duct, in K.

11. CO concentration in exhaust flow (xCO), sampled at the gas sampling probe in the general measuring section in the exhaust duct, in %.

12. Ambient pressure in the test room in kPa.

13. Mass flow rate of air to the burner (m_air) in mg/s.

14. Signal from the main photodiode of a laser smoke system at the general measuring section in the exhaust duct [dimensionless],

15. Signal from the compensating photodiode of a laser smoke system at the general measuring section in the exhaust duct [dimensionless].

For columns 2, 7, 9, 10, 11, 12, 13, 14 and 15, if the transducer is not fitted then the value reported must be -1 for the whole length of the data vector.

The data file format presented here only concerns the raw data (before performing the calculations). No file format is given for processed data files. However, it is advisable to build the processed data file from the raw data file by adding columns and rows at the ends (and not in between). In this way a processed data file can easily be used as a raw data input file.Bibliography

1. Council Directive 89/106/EEC of 21 December 1988 on the approximation of laws, regulations and administrative provisions of the Member States relating to construction products, OJ L 40, 11.2.1989, p. 12-26.

2. Commission Decision 2006/751/EC of 27 October 2006 amending Decision 2000/147/EC implementing Council Directive 89/106/EEC as regards the classification of the reaction-to-fire performance of construction products (notified under document number C(2006) 5063), OJ L305, 4.11.2006, p. 8-12.

3. Fire Performance of Electric Cables - New test methods and measurement techniques (FIPEC). Final report on the European Commission SMT programme sponsored research project SMT4- CT96-2059.

4. Guidance PaperG (concerning the Construction Products Directive- 89/106/EEC)- The European classification system for the reaction to fire performance of construction products, European Commission.

5. Me Caffrey and Heskestad. Combustion and Flame, 26 (1976).

6. EN 13823, Reaction to fire tests for building products - Building products excluding floorings exposed to the thermal attack by a single burning item.

7. EN 14390, Fire test - Large-scale room reference test for surface products.

8. EN ISO 5167-2, Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 2: Orifice plates (ISO 5167-2).

9. EN ISO 5167-4, Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full-Part 4: Venturi tubes (ISO 5167-4).

10. ISO 9705, Fire tests - Full-scale room test for surface products.