The Ultimate BIM Knowledge Hub
Your one-stop resource for BIM electrical.
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Data Management
ELI5
Lessons learned
Although BS EN ISO 19650-2: 2018 recommend that lessons learned should be captured throughout the entire project, the standard is dedicated for the delivery phase only. Hence project party can
Level of information need
Ever feel like you’re drowning in BIM data you don’t need, or scrambling for details that should’ve been there? Enter the concept of Level of Information Need. It’s a straightforward idea buried behind a not-so-straightforward name (looking at you, BS EN ISO 7817-1:2024). In plain English, a Level of Information Need defines exactly what information should be delivered – no more, no less – for a given BIM use case or project stage.
Back-up Protection
Circuit-breaker manufacturers publish tables showing combinations of pairs of circuitbreakers, one upstream,one downstream,where the downstream device can be used at a location where the prospective fault current (Ipf) is higher
BS EN ISO 19650-2 UK National Annex (NA) 2021 status and use reference table
Status Code Used For Action by Information State (at any project stage): Work in progress (WIP) S0 Information developed within a task team [C], [B]* Information State (at any project
Project Implementation Plan (PIP)
The Project Implementation Plan (PIP) it is a PAS 1192 term that should assist in establishing of the supply chain’s capability. In summary, it consists of the supplier’s: BIM assessment
Soil Thermal Resistivity
Relates to the ability of the soil, in which the cable is installed, to conduct heat energy away from the cable. The rating factor Cs is applied in cable sizing
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
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
objective
results to be achieved The objective can be strategic or operational; it can relate to different disciplines such as financial, health and safety, or environmental. The targeted results can be
federation strategy
ELI5-S1: BIM Basics E4: Federation Strategy Explained The purpose of the federation strategy and the Information Container (model) breakdown structure is to help plan the production of information by separate
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.
HVO Fuel
Hydrotreated Vegetable Oil (HVO) is a renewable, diesel-type fuel made from vegetable oils and fats instead of crude oil.
Consumer Unit
Atype of single-phase board for the control and distribution of electrical energy, principally in domestic premises. In the ProDesign software,a consumer unit (CU) can be split into three sections,each with
Emergency Voice Communication System (EVCS)
What is an Emergency Voice Communication (EVC) system? An Emergency Voice Communication (EVC) system (also referred to as EVCS) is a fixed, monitored, two-way voice communication system that enables point-to-point
BIMwash
The term BIMwash is derived from Whitewash, “a cheap white paint or coating of chalked lime used to quickly give a uniform clean appearance to a wide variety of surfaces”. Metaphorically, to
Handover
After the project is completed, the Appointing Party expects to receive Asset Information Model (AIM) compliant with the Exchange Information Requirements (EIR). The aim is to support the life
Sequence Flow (Normal or Uncontrolled)
A sequence flow is used to show the order in which activities in a process or choreography will be performed.[1] Symbol 1] Silver, B. (2009). BPMN Method and Style: A
IDM standard
BS EN ISO 29481-1 Building information models – Information delivery manual (IDM) PD ISO/TS 12911:201
BS EN ISO 23387:2020
Building information modelling (BIM) — Data templates for construction objects used in the life cycle of built assets Concepts and principles
metadata
ELI5-S1: BIM Basics E6: Metadata explained Understanding Metadata in Building Information Modeling (BIM) Metadata provides critical information about an item’s content, making it easier to locate and work with specific
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).
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.
Max Zs
Themaximum value of earth fault loop impedance (Zs) that will allow the protective device in a circuit to disconnect an earth fault within the prescribed time. Example: if themaximum earth
PAS 1192-7
The latest message related to PAS 1192-7 is a tweet from Paul Surin is that PAS1192-7 confirming that CPNI and BSI have agreed to cease the development of PAS 1192-7.
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
Information Protocol
The First Edition of the Building Information Model (BIM) Protocol published in 2013 identifies and puts into place specific obligations, liabilities and associated limitations on the use of the Building
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
Group
Because a group is not an activity or a flow object, it cannot connect to sequence or message flows. Furthermore, groups are not constrained by pool and lane restrictions. [1]
CDE area
ELI5-S1: BIM Basics E5: CDE areas and states Area and section imply moving information from one place to another. This is not necessary in a CDE. It is the state
Trigger Event
Trigger Events are the occurrences during the life of an asset that causes new or updated information to be required.There are two types of trigger event: Foreseen – planned for
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
Conformance Class
Conformance class allows establishing relations from the information model of BS EN 82045-2 to any other object of relevance available information model. For example, the Project Information Model (PIM) Conformance
Assignment
A request or offer resulting in a Reliable Promise and is ready to be placed on the Weekly Work Plan (WWP) for performance. An assignment must meet the characteristics for
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
Electrical Abbreviations, Symbols & Acronyms
Electrical Abbreviations, Symbols & Acronyms Reference This table contains 377 commonly used electrical abbreviations and acronyms, covering everything from current ratings and protection devices to power systems and components.It’s designed
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
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
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:
Physical Asset
A physical asset is an item of economic, commercial, or exchange value that has a material existence.Physical assets are also known as tangible assets.For most businesses, physical assets usually refer
asset management
coordinated activity of an organization to realize value from assets Note 1 to entry: Realization of value will normally involve a balancing of costs, risks, opportunities and performance benefits.Note 2
BS ISO IEC 33020:2019
Information technology—Process assessment Process measurement framework for assessment of process capability
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
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
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).
racetrack
Information delivery cycle It is a term introduced first in PAS 1192 and updated in ISO 19650 framework, it depicts the process of specifying and delivery of project and asset
Level of model development
Level of model maturity [ISO*] *Term based on experience. does not form part of ISO
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
Lean construction
Lean Construction is the method of project management aiming to reduce waste on a project and improving the efficiency and quality of produced work [1]. The aim to reduce overproduction,
