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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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Subject to Simultaneous Overload

Where circuits are grouped, there are two availablemethods of calculating the rating factor Cg to be applied:

  • Subject to simultaneousoverload:Assumes that more than one of the grouped circuitsmay be overloaded at any one time –applies grouping using: In/Cg.

[BS7671:2018,Appendix 4,5.1.2:Equation 2]

  • Not subject to simultaneousoverload:Assumes that only one of the grouped circuits will normally be overloaded at any one time (a reasonable assumption for general distribution loads) – uses two calculations to determine Cg from which the highest calculated value is to be used. Usually gives a reduced level of derating compared to ‘Subject to simultaneous overload’.

[BS7671:2018,Appendix 4,5.1.2:Equation 3,4]

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