The Ultimate BIM Knowledge Hub
Your one-stop resource for BIM electrical.
Revit Guides
Data Management
ELI5
Security Management Plan
A document (or part of a document) identified in the Information Particulars setting out the security requirements for carrying out the Works in a security-minded way, including any policies, protocols,
Model
An electronic, three-dimensional representation of built asset or facility elements with associated intelligentattribute data (“Facility Data”). A Model term used in PAS 1192 specification has been replaced by term ‘Information
Digital Plan Of Work (DPoW)
Digital Plan Of Work (DPoW) forms a framework that supports informed and consistent decision making by project teams, at each work stage, helping to deliver agreed and reliable information. The
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
Tier 1
In the construction industry, Tier 1 is a Contractor referred in ISO 19650 as the Lead appointed party, who provide goods or services directly to the ultimate client. The Tier
LTF_Lighting-Fixture Circular
LTF_Lighting-Fixture_Luminaire-Circular vv22.1.1. Family For: Electrical Engineers, Bim Managers, Electrical Designers Setup: 10 – 30 minutes View Details ▼ Technical Details Released: Feb 9, 2025 Updated: Jul 5, 2025 Compatibility Notes:
energy let-through of a device (I2t)
I2t The energy let-through of a device in A2s. The total amount of energy let through by a protective device for a given level of fault current at a stated
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)
Adiabatic
Adiabatic checks are required to determine whether conductorsmight be damaged by the thermal effects resulting from the level of calculated fault conditions.
Breaking capacity
IWE-S1-IWE- E8_Breaking Capacity of MCCB What is Breaking Capacity (kA) Breaking capacity, often referred to as short-circuit breaking capacity, is one of the most critical specifications of a protective device.
Architecture, Engineering and Construction (AEC) integration with Industry 4.0
The meaning of the term Industry 4.0 has not been concluded. There is a level of ambiguity of what it means for the construction industry[1] According to Jim Mansfield,
naming
The term naming in PAS 1192 is related to information container naming strategy, in ISO 19650 the therm is replaced by term ‘identification’ meaning remains the same
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
Rating factors
Rating factors are divided into the nominal rating of the circuit protective device (In) to determine theminimum current-carrying capacity (Iz) of a cable in a circuit. For example:Iz = In/(Ca
Organisational maturity
a measure of an organisation’s readiness and capability expressed through its people, workflows, information, technologies and the reliable measurement procedures that are in place [source: Understanding Organizational Maturity
VEAM connector
VEAM connectors refer to a specific type of electrical bayonet type connectors known for their robustness and reliability in harsh environmental conditions. These connectors are commonly used in various industries,
BS 9999:2017
Fire safety in the design, management and use of buildings – Code of practice
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
k Factor
Factors for conductor materials from BS7671:2018,Table43.1. Different values are given for different types of conductor and insulatingmaterials. k2s2 used in adiabatic calculations gives the short-time withstand of a conductor in
Overload rating (Ir)
Ir The adjusted overload rating of an overcurrent protective device, in Amperes.
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:
Required Standard
means the level of skill and care applicable to the Party’s equivalent obligation under the Appointment. [1] [1] UK BIM Framework, 2020. Information protocol to support BS EN ISO 19650-2
BS ISO 21500:2012
Guidance on project management ISO 21500 describes guidelines for managing projects and processes in project management, including standards, methods, and processes. The standard is intended to align with related international
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
Thomas Edison’s Pearl Street Station
Dynamos, Boilers, and the Costly Copper of Edison’s 1882 Pearl Street Station On September 4, 1882, Thomas Edison’s Pearl Street Station in New York City became the world’s first commercial
Product Data Template (PDT)
The document aimed to be used by manufacturers and consumers where information about a product, is collated in a standardised and structured way. The information is structured in the form
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
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
Circuit Protective Conductor (CPC)
Acircuit protective conductor (CPC) connects exposed-conductive-parts* of equipment to themain earthing terminal. *Conductive part of equipment,which can be touched and which is not normally live,but which can become live when
Certification
Assurance given by an independent certification body (ISO does not perform certification) that a product, service or system meets the requirements of a standard. https://www.iso.org/glossary.html
open interoperability
the meaning and benefits: single procurement of information that can be relied upon over time, removing the need for it to be repeatedly re-procured; a ‘Golden Thread’ of information to
Z2
Z2 – That part of the earth fault loop impedance which comprises the impedance under earth fault conditions of the circuit protective conductor (cpc) of the circuit under consideration.
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
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
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
Selectivity
Resolving Selectivity Issues in Electrical Design Free Trimble ProDesign Introduction Training Course Click the button below for more details: ProDesign Course Selectivity is achieved where,under overcurrent conditions, the protective device
macro diffusion dynamics
adoption model which identifies three diffusion dynamics top-down, bottom-up and middle-out Macro-Diffusion Dynamics model v1.1 (full size, current version). Macro-BIM adoption: Conceptual structures http://bit.ly/BIMPaperA8
geometrical
This is an ISO 19650 term which replaces the PAS1192 term “graphical”. Geometrical is more appropriate to describe spatial positioning and relationships
Intermediate Event
An intermediate event is something that occurs between the beginning and end of a process. Triggers can be “caught” or “thrown” by intermediate events. [1] Symbol 1] Silver, B. (2009).
client
actor (3.2.1) responsible for initiating a project and approving the brief [cited from ISO 19650-1:2018(en), 3.2.5] The UK BIM Alliance, responding to the inconsistency between the current guidance of CIC BIM Protocol,
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
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.
Document Naming Strategy
DOCUMENT NAMING STRATEGY All information in the PD Revit Template follows PROJECT DESIGN (IO) standards. the For one-page drawing naming strategy, please refer to free download E-5161 OnePage Naming Strategy
Digital Handover, O&M Records, and ISO 19650 Compliance
Here is a review and summary of digital handover requirements, O&M record management, and ISO 19650 application as outlined in CIBSE Guide M8 (2023) and Regulation 38, with new recommendations
diffusion
a process by which an innovation is communicated through certain channels over time among the members of a social system E.M. Rogers, Diffusion of Innovations, Free Press, New York, 1995.
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]
Harmonic rating factor (Ch)
Ch Rating factor used for calculating theminimum required cable size in the presence of harmonic currents.See BS7671:2018,Appendix 4, section 5.5.
