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Dictionary
Digital Construction (electrical)

term introduced first in PAS 1192 and updated in ISO 19650 framework, it depicts the process of specifying and delivery of project and asset information

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forms a framework that supports informed and consistent decision making by project teams, at each work stage, helping to deliver agreed and reliable information.

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Exchange Information Requirements (EIR) term introduced by BS EN 19650 replace the PAS 1192 term Employer Information Requirements (EIR) on all projects where BS EN ISO 19650 compliance is required.

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The term introduced by ISO 19650 typically describes the Tier 1 Main Contractor.

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breakdown structure to help plan the production of information

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schedule of information containers and delivery dates, for a specific task team

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An MPDT its old PAS 1192 term, the MPDT defines who produces what, when and to what level of detail.

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jet

extinguishing medium, usually water, leaving a nozzle as a continuous stream, water spray, or water
fog (mist)

BS 4422 2005
  1. Continuous Stream: When water is expelled as a continuous stream, it means the water flows in a steady, unbroken line from the nozzle. This method is effective for delivering a large amount of water to a specific point, making it useful for deeply-seated fires or for reaching long distances.
  2. Water Spray: In this mode, the water is dispersed in a spray pattern. This creates a wider area of coverage compared to a continuous stream. Water sprays are effective for covering larger surface areas and can be used to cool down surrounding areas to prevent the spread of fire.
  3. Water Fog (Mist): When water is expelled as a fine mist, it creates a fog-like effect. This method is especially effective for absorbing heat and reducing temperatures rapidly. The fine droplets of water in the mist have a larger surface area in contact with the fire, which helps in quicker heat absorption and also in creating a barrier that limits the access of oxygen to the fire.

Each of these methods has its own advantages and is chosen based on the nature of the fire, the environment, and the specific goals of the firefighting effort (such as direct extinguishing, creating firebreaks, or cooling). The design of the nozzle and the pressure of the water are key factors in determining the pattern of the jet.

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