The Ultimate BIM Knowledge Hub

Your one-stop resource for BIM electrical.
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Data Management

ELI5

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

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TT system

A system having one point of the source of energy directly earthed, the exposedconductive-parts of the installation being connected to earth electrodes electrically independent of the earth electrodes of the

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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

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pre-design process

construction process (3.3.2) determining construction properties (3.5.1) for the built environment (3.1.7) before it is designed[1] 1 Online Browsing Platform (OBP) [WWW Document], n.d. URL https://www.iso.org/obp/ui#search (accessed 4.10.21).

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Level of information (LOI)

The term used in relation to management of the progression and uses of information. There is general confusion with the use of the term, due to range of other interrelated

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IDM standard

BS EN ISO 29481-1 Building information models – Information delivery manual (IDM) PD ISO/TS 12911:201

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BIM Use

A Use Case is a description of an intended use of the BIM, along with a description of the type(s) of data that must be in the BIM in order

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Enabling Tools

Tools that help design, develop, deliver, and maintain the built asset. You may require a number of different enabling tools for specific tasks and functions. https://www.thenbs.com/knowledge//periodic-table-of-bim

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facility

physical structure (asset) or installation, including related site, works, serving one or more main purposeNOTE: Typically, a facility will require management over part or all of its life cycle. The

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How To
Jarek Wityk

Arc Fault Detection Devices (AFDDs) 

Arc Fault Detection Devices (AFDDs) in the UK: Technical Requirements and Implementation Executive Summary Arc Fault Detection Devices (AFDDs) represent a significant advancement in electrical fire safety. This whitepaper provides

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4D Modeling

4D Modelling also referred to as 4D BIM, when supported by existing planning techniques, can improve project delivery times and schedules. To make the gains possible, all project members must

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Management of duplicates

The procedure to remove duplicate properties shall be carried out on the relevant attributes. The management of duplicates cannot be fully automated. BS EN ISO 23386:2020

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acceptance criteria

evidence required for considering that requirements have been fulfilled [cited from ISO 19650-2:2018(en), 3.1.1.1] Information issued via the Common Data Environment (CDE) must comply with Project Information Requirements (PIR) outlined

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model validation checklist

The example checklist consists of checks which assure quality within models and information, to eliminate errors and achieve desired project outcomes. Table 1 – Model Validation Checklist Check Definition Project

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Dictionary
Jarek Wityk

BS EN ISO 9001:2015

Quality management systems Requirements ISO 9001 is a set of quality management principles defined by various criteria and standards. It outlines the importance of defining a quality management system (QMS)

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Contract

Appointment ISO 19650 introduce term Appointment to be used instead of the more generic term contract. This means one term can be used for both external contracts and internal work

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Code of Conduct

Set of principles to be followed by people involved in ISO work, e.g. working within an international framework, upholding consensus, being ethical. https://www.iso.org/glossary.html

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How To
Jarek Wityk

Mimic Panels for Life-Safety Generators

Mimic Panels for Life-Safety Generators – UK-Specific Designer’s Guide Key takeaway: Indicator for generators and smoke-control systems (commonly referred to as ‘mimic panel’, often marked “ESP – Emergency Stand-by Power

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Rated current

Value of current used for specification purposes,established for a specified set of operating conditions.

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Target Value Design

Target Value Designs (TVD) focus is on reducing the cost of a project without reducing the quality of the end product or extending the timetable. The team sets a cost

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As-Built Model

Model(s) based on Fabrication Shop Model(s) and installed conditions.1 1 1 The Massachusetts Port Authority, 2015. BIM Guidelines for Vertical and Horizontal Construction.

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Delivery team

In ISO 19650 the Delivery team term replaces the term ‘ Project Delivery team’ the meaning meant to remain the same, but the change puts the client (Appointing Party) outside

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Unified Modelling Language (UML)

language to provide system (3.13) architects, software engineers, and software developers with toolsfor analysis, design, and implementation of software-based systems as well as for modelling businessand similar processesNote 1 to

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Dictionary
Jarek Wityk

information delivery milestone

scheduled event for a predefined information exchange [cited from ISO 19650-2:2018(en), 3.1.3.2] Milestones act as signposts through the course of a project. An information delivery milestone is a point in

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Dictionary
Jarek Wityk

BIM Stages

ELI5-S1:BIM Basics: E13_Understanding BIM Stages Understanding BIM Stages: Transitioning from BIM Levels to a Modern Framework In the world of Building Information Modeling (BIM), we often come across terms like

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Fault

Acircuit condition in which current flows through an abnormal or unintended path. The fault current may flow from line to line (phase fault) or line to earth (earth fault).

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systems thinking

System thinking is an approach to integration based on the idea that each component or part of a system acts differently when isolated from its environment and other parts of

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Integrated Project Insurance (IPI)

The integrated Project Insurance model (IPI) coupled up with Insurance Backed Alliancing is a framework which encourages and empowers project teams to work together. The procurement method introduced by Constructing Excellence

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Parametric behaviour

The parametric behaviour of an object describes whether its shape, position, and orientation are designed to be dependent on other information associated with the object or the context in which

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Data Association

A data association is used to move data between data objects, properties, and activity and process inputs and outputs. The association connector style can be used to visually represent data

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Dictionary
Jarek Wityk

jet

extinguishing medium, usually water, leaving a nozzle as a continuous stream, water spray, or waterfog (mist) BS 4422 2005 Each of these methods has its own advantages and is chosen

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Instructions
Jarek Wityk

LTF_Lighting-Fixture Rectangular

LTF_Lighting Fixture_Generic Rectangular Light v22.1.3 Family For: Electrical Engineers, Bim Managers, Electrical Designers Setup: 10-30 minutes View Details Technical Details Released: Feb 2, 2025 Updated: Jul 5, 2025 Regional Variants:

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Dictionary
Jarek Wityk

Project Team

All parties appointed for the project are defined as members of the Project Team. Each function can be fulfilled by either an individual or multiple people throughout the course of

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Dictionary
Jarek Wityk

BS EN ISO 31000:2018

Risk management guidelines ISO 31000 is an international standard first published in 2009, the current version published in 2018. The standard contains principles and guidelines for effective risk management. It

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Final Circuit

A circuit connected directly to current-using equipment, or to a socket-outlets or other outlet points for the connection of such equipment.

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National Annex (NA)

With reference to BS EN ISO 19650 Framework, the working group could not conclude on international codification and standardised conventions. Hence Paul Shillcock and David Churcher, the lead authors, came

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Dictionary
Jarek Wityk

Function

ELI5-S1 BIM Basics E17_BIM Functions Understanding Functions: A Basic Guide In both everyday life and specialised fields like mathematics, computer science, and even construction, the term “function” is widely used.

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buildingSMART Data Dictionary

PD 19650‑0:2019 In short, the BuildingSMART Data Dictionary is a library for everything to do with the building. NumberName is an int key and string value that can be stored

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Work standards and workflows

Project management focuses on project completion by the execution of various processes. Most of the workflows comprising repetitive tasks can be optimised by applying workflow management systems. Automation-optimized business processes

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Status

Identifier indicating the characteristic of an element of information for which at all times a value can be established. Word status has been included in ISO 19650 Framework meant to

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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

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System of systems

A system of systems is a collection of many different systems, each with its own characteristics. [1] System theory assumes that certain underlying concepts and principles are applicable to different

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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

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