The Ultimate BIM Knowledge Hub
Your one-stop resource for BIM electrical.
Revit Guides
Data Management
ELI5
Value
What the customer wants from the process, and will pay for. [1] [1] The Massachusetts Port Authority, 2015. BIM Guidelines for Vertical and Horizontal Construction.
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
Thermal insulation rating factor (Ci)
Ci Rating factor used for calculating theminimum required cable size for cables run in thermal insulation. See BS7671:2018 Table52.2.
Information Delivery Manual (IDM)
information delivery manual (IDM) Documentation that captures the business process and specifies in detail the information that a user performing a particular role is required to provide at a particular
NWD
NWD designates the published version of a Navisworks file with all loaded models, viewpoints, redlines, and comments saved to a single file. This file type can be opened with any

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)
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
data aggregation
Data aggregation refers to a process that involves gathering information and expressing it in summary form for statistical analysis or other purposes. In many cases, data aggregation is exclusively done
Master Information Delivery Plan (MIDP)
The Master Information Delivery Plan (MIDP) is the primary plan for the preparation of project information (from the supplier’s perspective), which is set out as being required in the Exchange
Collaborative Design
Working with different teams is probably the most difficult part of the design process. It is important to note that a collaborative design process is not about someone else creating
BS EN ISO 21597-1:2020
Information container for linked document delivery — Exchange specification Part 1: Container
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
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
efficiency
correlation between the outcome and the resources used a measure of the utilization of resources to realize a given objective Note 1 to entry: An activity is efficient if it minimizes
Adiabatic
Adiabatic checks are required to determine whether conductorsmight be damaged by the thermal effects resulting from the level of calculated fault conditions.

Management of the cyber-security threats in Common Data Environment
The increased reliance of the IT Technology Widely used cloud-based systems with file-sharing protocols have are the way of the future, but the use of such a platforms increase the
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.
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
BS EN ISO 19650-3:2020
Organization and digitization of information about buildings and civil engineering works, including building information modelling (BIM) – Information management using building information modelling Part 3: Operational phase of the assets
TN system
A system having one or more points of the source of energy directly earthed, the exposedconductive-parts of the installation being connected to that point by protective conductors.
Model Upload Workflow
3D models shall be synchronized with the central cloud model after daily work is done to ensure the rest of the project team are coordinating with the latest information. All
ISO/TS 12911:2012
Framework for building information modelling (BIM) guidance STANDARDS BY ISO/TC 59/SC 13
Depth of lay rating Factor (Cd)
The rating factor Cd is applied to cable sizing calculations for cable installed in the ground. Its value varies according to the depth of lay installed. See BS7671:2018,Table4B4. Indicates the
Start Event (Message)
A message is received from a participant, which initiates the process. The actual recipient of the message can be identified by connecting the event to a participant via a message

Operational Team Context of Information Exchange
ELI5-S2: BIM in Practice E2: Operational Team Context of Information Exchange Explained In any BIM project, understanding the context of information exchange during the operational phase is crucial. This post

Life Safety Generator
Life Safety Generator selection guide Copy If the secondary power supply is provided for firefighter’s lift, it must be capable of operating the firefighter’s lift at its full rated load
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

ISO 19650 Framework
The ISO 19650 framework is generally aimed for information management. The individual standards do not cover the whole area of quality management but instead point out to other standards suggesting
ubiquitous access
The modern era of IT has turned to ubiquitous access to all organizations and users. The vision is to provide one “universal access,” i.e. access to all IT services, regardless
built asset
individual or multiple buildings (e.g. a site or campus) or infrastructure (e.g. roads, railways, pipelines, dams, docks, etc.) built as part of a construction project or where the asset information
Heating, Ventilation and Air-Conditioning (HVAC)
Heating, Ventilation and Air-Conditioning (HVAC). All necessary heating, ventilation air-conditioning and specialty equipment, including air distribution ducts for supply, return, and ventilation and exhaust ducts, including control system, registers, diffusers,
Pre-contract BEP
On projects where ISO 19650 Framework has implemented a term, Pre-appointment BEP is used instead of the PAS 1192 term Pre-contract BEP. The meaning is the same, it communicates on
carbon sink
A carbon sink is a natural or artificial reservoir that captures and stores morecarbon than it releases. Examples include forests, oceans, soil and potentially timber buildings. We need these reservoirs
Overload rating (Ir)
Ir The adjusted overload rating of an overcurrent protective device, in Amperes.
BS EN ISO 16757-2:2016
Data structures for electronic product catalogues for building services—Part 2: Geometry
Subcommittee (SC)
a Subcommittee (SC), which addresses a specialized area within a TC; https://www.iso.org/glossary.html
delta exchange
exchange of only changed information between two synonymous sources PAS 14191:2020
Association
An association is used to link data and artefacts to flow objects. Non-flow objects, such as text and graphics, can be associated with flow objects and flow.[1] Symbol [1] Silver,
Infrastructure
the structures that emphasize, organise and enable social functions. Individual units of infrastructure are known as assets. It is sometimes subcategorised into economic infrastructure, the networks of built assets that
Quality Planning (QP)
Quality Planning (QP) is a framework which specifies quality standards, practices, resources, and the sequence of activities The quality plan should define:[1] Objectives to be achieved A workflow that represents

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
Construction Products Regulation (CPR)
Construction Products Regulation (CPR) https://ec.europa.eu/growth/sectors/construction/product-regulation_en#:~:text=The%20Construction%20Products%20Regulation%20(CPR,the%20performance%20of%20construction%20products.
interaction framework schema
a formal description of the rules with which an interaction framework must comply[1] 1 Online Browsing Platform (OBP) [WWW Document], n.d. URL https://www.iso.org/obp/ui#search (accessed 4.10.21).

UK Earthing & Bonding Design Reference
UK Earthing & Bonding Design Reference (Edition 2025 – aligned with BS 7671:2018+A2:2022, Amendment 3 (2024), and draft Amendment 4 (2026), also drawing from official UK Power Networks standards) Scope,
Rated current
Value of current used for specification purposes,established for a specified set of operating conditions.
agent
…’An agent is just something that acts (agent comes from the Latin agree, to do). Of course, all computer programs do something, but computer agents are expected to do more:

BIM Classification and Standardization Systems
Introduction There are companies in the construction industry which do not favour standardization; these companies benefit from revenue and profits from change orders (variations), inevitably resulting in claims increasing cost
Information Controller
Responsible for setup and management of the Common Data Environment (CDE), document submission, RFI and other project document transactions. [Appointment: Lead Appointed Party Information Controller, site-based/office based.] [source] PDE 4301









