1.1 This is a fire-test-response standard.<\/p>\n
1.2 This test method provides a means to measure the smoke obscuration resulting from burning electrical insulating materials contained in electrical or optical fiber cables when the cable specimens, excluding accessories, are subjected to a specified flaming ignition source and burn freely under well ventilated conditions.<\/p>\n
1.3 This test method provides two different protocols for exposing the materials, when made into cable specimens, to an ignition source (approximately 20 kW), for a 20 min test duration. Use it to determine the flame propagation and smoke release characteristics of the materials contained in single and multiconductor electrical or optical fiber cables designed for use in cable trays.<\/p>\n
1.4 This test method does not provide information on the fire performance of electrical or optical fiber cables in fire conditions other than the ones specifically used in this test method nor does it measure the contribution of the cables to a developing fire condition.<\/p>\n
1.5 Data describing the burning behavior from ignition to the end of the test are obtained.<\/p>\n
1.6 The production of light obscuring smoke is measured.<\/p>\n
1.7 The burning behavior is documented visually, by photographic or video recordings, or both.<\/p>\n
1.8 The test equipment is suitable for making other, optional, measurements, including the rate of heat release of the burning specimen, by an oxygen consumption technique and weight loss.<\/p>\n
1.9 Another set of optional measurements are the concentrations of certain toxic gas species in the combustion gases.<\/p>\n
1.10 The values stated in SI units are to be regarded as the standard (see IEEE\/ASTM SI 10).<\/p>\n
This standard measures and describes the response of materials, products, or assemblies to heat and flame under controlled conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, products or assemblies under actual fire conditions.<\/p>\n
1.11 Fire testing of products and materials is inherently hazardous. Employ adequate safeguards for personnel and property in conducting these tests.<\/p>\n
This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 1<\/td>\n | Scope Referenced Documents <\/td>\n<\/tr>\n | ||||||
| 2<\/td>\n | Terminology Summary of Test Method Significance and Use Apparatus <\/td>\n<\/tr>\n | ||||||
| 3<\/td>\n | FIG. 1 <\/td>\n<\/tr>\n | ||||||
| 4<\/td>\n | FIG. 2 <\/td>\n<\/tr>\n | ||||||
| 5<\/td>\n | FIG. 3 <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | FIG. 4 FIG. 5 FIG. 6 <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | Test Specimens Calibration Conditioning Procedure TABLE 1 TABLE 2 <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | Calculation Report Precision and Bias Keywords <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | A1. CALCULATION OF VOLUMETRIC FLOW RATE A1.1 A2. DESIGN OF EXHAUST SYSTEM A2.1 <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | A3. INSTRUMENTATION IN EXHAUST DUCT A3.1 A3.2 FIG. A2.1 <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | A4. SMOKE MEASUREMENT EQUATIONS A4.1 A4.2 <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | A4.3 X1. COMMENTARY X1.1 Introduction X1.2 Measurements <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | X1.3 Electrical Cables X1.4 Test Facility X2. OPTIONAL MEASUREMENTS FOR WHICH THIS STANDARD IS SUITABLE X2.1 Mass Loss Measurements X2.2 Heat Release and Gas Analysis Measurements <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | X2.3 Calibration X2.4 Test Procedure for Optional Measurements FIG. X2.1 <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | X2.5 Report of Optional Test Measurements X3. ADDITIONAL INSTRUMENTATION IN EXHAUST DUCT X3.1 X3.2 Sampling Line X3.3 Combustion Gas Analysis FIG. X3.1 <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | X4. CONSIDERATIONS FOR HEAT RELEASE MEASUREMENTS X4.1 Measurement of Rate of Heat Release by Oxygen Consumption X4.2 Rate of Heat Release Measurement if Only Oxygen is Measured <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | X4.3 Rate of Heat Release Measurement if Oxygen and Carbon Dioxide are Being Measured X4.4 Rate of Heat Release Measurement if Oxygen, Carbon Dioxide and Carbon Monoxide are Being Measured X4.5 Conclusions X5. HEAT RELEASE MEASUREMENT EQUATIONS X5.1 Rate of Heat Release <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | X5.2 X5.3 X6. METHOD OF DETERMINING SUITABILITY OF OXYGEN ANALYZERS FOR MAKING HEAT RELEASE MEASUREMENTS X6.1 General X6.2 Procedure <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | X6.3 Additional Precautions X7. RECOMMENDATIONS ON CABLE CONSTRUCTIONS X7.1 X7.2 X7.3 REFERENCES <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" D5424-05 Standard Test Method for Smoke Obscuration of Insulating Materials Contained in Electrical or Optical Fiber Cables When Burning in a Vertical Cable Tray Configuration<\/b><\/p>\n |