The Ultimate BIM Knowledge Hub
Your one-stop resource for BIM electrical.
Revit Guides
Data Management
ELI5
IDM standard
BS EN ISO 29481-1 Building information models – Information delivery manual (IDM) PD ISO/TS 12911:201
business process modelling notation (BPMN)
Business Process Modelling Notation (BPMN) is a flow chart method for modelling the steps of a planned business process from beginning to end. It is a critical component of Business
Building Research Establishment Environmental Assessment Method (BREEAM)
It is a UK green building certification system, launched in 1990 by the Building Research Establishment (BRE), similar to LEED. Both systems confirm the level of the sustainability performance of

Organisational Purpose
A sense of organisational purpose is an essential part of promoting organisational effectiveness, which motivates individuals to do work and create something or justify the existence of something. Cooperation
Model Production Delivery Table (MPDT)
An MPDT its old PAS 1192 term, the MPDT defines who produces what, when and to what level of detail. The recent publication of ISO 19650 standards does not include
Facility Lifecycle
This refers to the time span stretching from a building’s conception to demolition including the five distinctive phases (Planning, Design, Construction, Operations, and Disposition).1 1 The Massachusetts Port Authority, 2015.
workflow
The term ‘workflow’ is used in ISO 19650 instead of the PAS 1192 term ‘process’.
Overload rating (Ir)
Ir The adjusted overload rating of an overcurrent protective device, in Amperes.
Fixed Equipment
Equipment designed to be fastened to a support or other wise secured in a specific location.

Junction Boxes
Junction Box Requirements in Electrical Installations To ensure compliance with BS 7671:2018+A2:2022, the following requirements apply when using junction boxes in electrical installations: 1. Compliance with BS EN 60670-22 Any
Waste
The opposite of value. There are eight basic types of waste: motion waiting transportation of goods over-processing under utilization overproduction inventory defects [1] [1] The Massachusetts Port Authority, 2015. BIM
Project Information Manager
Responsible for extraction, review, coordination and reporting of data within the native and federated models as well as associated project databases throughout the project stages to ensure client and BEP
security breach
infraction or violation of security (3.7) [1] 1 Online Browsing Platform (OBP) [WWW Document], n.d. URL https://www.iso.org/obp/ui#search (accessed 4.10.21).

digital construction campaign!
Thank you #willmottdixon team at our London Southbank University project for the #opportunity to participate in the #BIM & #digitalconstruction campaign! #LSBU #WDI, #WES, #team, #ConstructingPlainLanguage
Project Committee (PC)
a Project Committee (PC), which is created to develop one standard, after which it is disbanded. https://www.iso.org/glossary.html
Subcommittee (SC)
a Subcommittee (SC), which addresses a specialized area within a TC; https://www.iso.org/glossary.html
validation
confirmation, through the provision of objective evidence, that the requirements for a specific intendeduse or application have been fulfilled [SOURCE: BS EN 17412‑1:2020] For example, it is the process of
Committee
This could be: a Technical Committee (TC), which develops standards in a certain sector or industry; a Subcommittee (SC), which addresses a specialized area within a TC; a Project Committee
area of competence
area of an expert’s […] proficiency and knowledge associated to one or several groups of properties BS EN ISO 23386:2020
Value Stream Mapping
A diagram of every step involved in the material and information flows needed to bring a product from request to delivery. [1] [1] The Massachusetts Port Authority, 2015. BIM Guidelines
Residual Current Device (RCD)
AResidual Current Device (RCD) is amechanical switching device or association of devices intended to cause the opening of the contacts when the residual current* attains a given value under specified

Electric Vehicle Charging Points
Active charging points are fully wired and connected, ready-to-use charging points.
A passive charging point, on the other hand, is the infrastructure without the final charging unit installed.
Work stages
A division of standardised process and activities into named stages during the life of a system or facility. The process and activities extending from the definition of its requirements to
National BIM Standard
National BIM Standard (NBIMS) – United States Version 2 is sponsored by National Institute of Building Sciences (NIBS) under its BuildingSMART Alliance Council. [1] [1] The Massachusetts Port Authority, 2015.
Subject to Simultaneous Overload
Where circuits are grouped, there are two availablemethods of calculating the rating factor Cg to be applied: [BS7671:2018,Appendix 4,5.1.2:Equation 2] [BS7671:2018,Appendix 4,5.1.2:Equation 3,4]
Gross Internal Area (GIA)
The total area of buildings owned, occupied, or maintained, measured to the internal face of the perimeter walls at each floor level, is referred to as GIA (i.e. the footprint
Nominal line voltage to earth (Uo)
Uo Nominal line voltage to earth. Assumed to be 230 V for grid connected systems.
Data Object
Data objects provide information about the activities that must be performed and/or the results that they produce. Elements of data objects must be contained within process or sub-process elements. Data
digital built environment
The terminology such as digital built environment and smart asset management, often referred to as Digital Construction, encompasses multiple technologies and processes related to information or project management and the

Updates to BS 7671:2018+A2:2022 – Summary for High Risk Buildings
Key Updates and Amendments Arc Fault Detection Devices (AFDDs) – Regulation 421.1.7 Amendment 2 (2022) Changes:BS 7671:2018+A2:2022 introduced mandatory AFDD requirements for single-phase AC final circuits supplying socket outlets with rated
Pool
A pool is a graphical representation of a collaboration participant. A pool serves as a container for the sequence flows that occur between activities (of a contained process). The sequence
Team’s Capability and Capacity
The competence and understanding of BIM, of the consultants and delivery team partners to be involved in the project, shall be assessed and results included in Post-Contract BEP. The assessment
deactivation request
A deactivation request corresponds to a modification of the property. After validating of the deactivation request by the experts, the value of the calculated status of the property changes to
The Centre for Digital Built Britain
The Centre for Digital Built Britain (CDBB) CDBB is a partnership between the University of Cambridge and The Department for Business, Energy and Industrial Strategy (BEIS). It is the custodian
Spacial Asset
A spacial asset can be defined as a specific location such as a zone, boundary, area, floor or room with a known location and extents.For most businesses, spacial assets usually
Gateway (Parallel)
[And] When used to split the sequence flow, all outgoing branches are activated at the same time. When parallel branches are merged, it waits for all incoming branches to complete
Project Information Model (PIM)
It is a term introduced in PAS 1192‑2: 2013 and ISO 19650 set of standards. It means any graphical or non-graphical information such as: Structured information, i.e.: schedules, costing and
BS 8541-2:2011
Library objects for architecture, engineering and construction Part 2: Recommended 2D symbols of building elements for use in building information modelling Note: ISO 22014 and ISO 22057 are under development
Design Web Format
Design Web Format (DWF), created by Autodesk. DWF is a compressed, non-editable, vector file format created by CAD and BIM applications. A DWF file can represent sheets for plotting purposes
Industry Foundation Classes (IFC)
conceptual data schema and exchange file format for building information modelling (BIM) data BS EN ISO 23387:2020 In general, IFC, or “Industry Foundation Classes”, is a standardized, digital description of
BS EN ISO 29481-1:2017
Building information models – Information delivery manual Part 1: Methodology and format
BS 8541-3:2012
Library objects for architecture, engineering and construction Part 3: Shape and measurement – Code of practice Note: ISO 22014 and ISO 22057 are under development tosupersede BS 8541, parts 1-6.
exchange requirement (ER)
defined set of information units that needs to be exchanged to support a particular business requirementat a particular process phase (or phases)/stage (or stages) BS EN ISO 29481-1:2017
Miller’s law
Argument introduced by Miller, G. A., suggests that the number of objects an average human can hold in short-term memory is 7 ± 2.[1] From a practical standpoint, this means
CDE gate
Transition [ISO19650] Transition is used to denote change (in the state of the information container)
Technical Committee (TC)
a Technical Committee (TC), which develops standards in a certain sector or industry; https://www.iso.org/glossary.html
Post-appointment BEP
Post-appointment BEP confirms and defines the delivery team’s approach to information management in the appointed project. It is a BIM Execution Plan (BEP) which shall be re-submitted by the Lead








