Standard Test Methods for Fire Tests of Fire-Resistive Barrier Systems for Electrical System Components

Importancia y uso:

4.1 These fire-test-response test methods evaluate, under the specified test conditions, the ability of a fire-resistive barrier system to inhibit thermal transmission to the electrical system component within.

4.2 In these procedures, the specimens are subjected to one or more specific sets of laboratory test conditions. If different test conditions are substituted or the end-use conditions are changed, it is not always possible by or from these test methods to predict changes in the fire test response characteristics measured. Therefore, the results are valid only for the fire test exposure conditions described in these procedures.

4.3 These test methods provide a measurement of the transmission of heat to the electrical system components within the barrier system.

4.4 These test methods provide qualification of a fireresistive barrier system as one element of an electrical system designed to maintain continuous operation of critical functions and processes for a specific fire resistance rating.

4.4.1 In addition to the temperature data provided by these test methods, numerous other factors, such as referenced in 1.4 shall be considered in specifying such a system.

Subcomité:

E05.11

Referida por:

E2749-24

Volúmen:

04.07

Número ICS:

13.220.40 (Ignitability and burning behaviour of materials and products), 29.020 (Electrical engineering in general)

Palabras clave:

air drop; cable tray; conduit; electrical system components; fire resistance rating; fire-resistive barrier systems; fire-test-response method; junction box; open run cables; pull box; raceway; thermal transmission ;