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ELI5
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Cable Ladder vs Perforated Cable Tray Selection Guide
Cable Ladder vs Perforated Cable Tray – Selection Guide (UK, 2025) Scope & references BS 7671:2018+A2:2022 and A3:2024 (selection & erection; installation reference methods; grouping). IET On‑Site Guide to BS
2025-08-24
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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.
2022-07-11
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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
2022-07-03
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TC 59
Technical Committee – Buildings and civil engineering works https://www.iso.org/committee/49070.html
2022-07-24
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Internet of Things (IoT)
This phrase refers to networked infrastructures that interconnect physical objects and allow for the management of the data they generate. A typical example of IoT is a home energy monitor
2022-07-11
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attribute
Depending on the technology discussed, the term attribute can be treated as equivalent to a property or as a set of attributes, such as the number of elements in a
2022-07-24
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Blog
Shared context of information exchange
ELI5-S2: BIM in Practice E1: Shared context of information exchange Introducing the “ELI5-S2 BIM in Practice” Series! Welcome to the first post in our new series, “BIM in Practice,” where
2024-06-16
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security
state of relative freedom from threat (3.13) or harm caused by deliberate, unwanted, hostile or malicious acts [cited from ISO 19650-5:2020(en), 3.7]
2022-07-15
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Strategic Objectives of BEP
Objectives of BEP shall be allignwed with Exchange Information Requirements (EIR), an example of Strategic Objectives for a project have been listed below: Meet Level 2 BIM compliance, in accordance
2022-07-11
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Common Data Environment (CDE)
Common Data Environment (CDE)
ELI5-S1: BIM Basics E2: CDE Explained The purpose of using Common Data Environment (CDE) on a project is to provide the right person with the right information at the right
2022-07-24
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Scope
Bid response should include a scope management plan containing all the tasks necessary for successful project delivery. The plan shall define the implementation and verification of workflows. A project should
2022-07-04
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Asset Information Requirements (AIR)
Term introduced by ISO 19650 set of standards is related to information required during the operation phase of an asset AIR define managerial, commercial and technical aspects of information production,
2022-07-24
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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
2022-07-11
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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
2023-02-05
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third party
person or body that is recognized as being independent of the parties involved with the issues in question [1] Note 1 to entry: “Parties involved” are usually supplier (“first party”) and purchaser (“second party”). 1
2022-07-11
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BIM collaboration format (BCF)
BIM Collaboration Format (BCF) is an open file format that allows the addition of textual comments, screenshots, and other information on top of the IFC model layer for improved communication
2022-07-24
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Master Schedule
The purpose of a project schedule is to define how the project should be delivered and maintained based on the available resources. The development of a timetable is the first
2022-07-11
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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
2022-07-24
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Dictionary
BS ISO 8000-2:2020
Data quality Part 2: Vocabulary ISO 8000 is an emerging technology standard for organizations that want to improve business processes and control operating costs throughout the product life cycle from
2022-07-15
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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).
2022-07-11
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Blog
The Museum of the Future
Introduction The idea to connect 3D CAD models with construction programs (4th Dimension) was formulated in 1986-87 when Bechtel collaborated with Hitachi Ltd to develop the 4D visual model[1] The
2020-10-10
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The Gemini Principles
Purpose: Must have clear purpose Public good Must be used to deliver genuine public benefit in perpetuity Value creation Must enable value creation and performance improvement Insight Must provide determinable
2022-07-24
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Asset Information Model (AIM)
The Asset Information Model or AIM is a term used to define the set of information gathered from all sources that support the continuing management of an asset
2022-07-24
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How To
Separation Gap for Primary and Secondary Life Safety Cable Trays Roof Installation)
UK electrical and fire safety standards do not prescribe a fixed minimum separation distance for roof-mounted life-safety cable trays. However, BS 7671, BS 8519, and BS 5839 collectively establish that life-safety circuits must be installed on dedicated containment and be either separated by barriers or adequately distanced to ensure circuit independence.
2025-07-29
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Plain Language Questions (PLQ)
The publication of ISO 19650 set of standards replaces use of PLQ and instead introduce the term with exchange information requirements (EIR) and project information requirements (PIR). Project information requirements
2022-07-27
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specialization relation
relation between kinds of things that relates two concepts whereby the subtype concept is a more specific concept than the supertype concept and has all the aspects that define the
2022-07-11
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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
2023-02-05
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Existing Conditions Modeling
A process of developing a 3D model of the existing conditions for an asset, or a specific area within a facility.The model can be developed based on laser scanning surveys
2022-07-11
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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
2022-07-27
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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
2023-02-05
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Construction Operation Building information exchange (COBie)
COBie is a non-proprietary data format for the publication of a subset of building information models (BIM) that focuses on delivering asset data rather than geometric information. It is formally
2022-07-24
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Additive manufacturing
Additive manufacturing (AM), also known as 3D printing, is the process of creating products by layering materials until a complete 3D object is created. The process can transform digital design
2022-07-24
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BS 11000‑2:2017
Collaborative business relationship management systemsPart 2: Guide to implementing BS ISO 44001
2022-07-15
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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
2022-07-24
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2022-07-27
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Activity
An identifiable chunk of work with recognized prerequisites to begin and a recognized State of Completion – or Conditions of Satisfaction. Another way to look at an activity – establish
2022-07-11
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Insurance Backed Alliancing
A new procurement method coupled up with Integrated Project Insurance model (IPI) is a framework which encourages and empowers project teams to work together. The procurement method introduced by Constructing Excellence
2022-07-24
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Blog
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.
2025-06-29
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Assignment matrix
Responsibility matrix [ISO19650] In ISO 19650 there is a principle to develop responsibility matrices to cover information management activities and information delivery. Responsibility matrix [PAS1192] The former is illustrated as
2022-07-27
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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
2022-07-15
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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
2022-07-11
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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,
2022-07-11
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Dictionary
BS ISO 55000:2014
Asset management Overview principles and terminology The ISO 55000 standard integrates with other essential management systems by outlining definitions and terminologies for asset management. Published under the International Organization for
2022-07-15
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Dictionary
coordination
Coordination goes beyond orderly task execution, it transforms individual perspectives into shared, community-wide actions. It’s not just a subset of collaboration; it’s the engine that makes collaboration more than a patchwork of solo efforts.
2023-02-25
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Dictionary
jet reaction
nozzle reactionforce acting in the opposite direction to the water stream leaving the nozzle BS 4422 2005 “Jet reaction,” also known as “nozzle reaction,” is a fundamental concept in fluid
2023-12-05
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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
2023-02-05
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2022-07-24
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Last Planner System®
The collaborative, commitment-based planning system that integrates “should-canwill-did planning” (pull planning, make-ready look-ahead planning with constraint analysis, weekly work planning based upon reliable promises, and learning based upon analysis of
2022-07-11
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Specialist BIM Manager / Coordinator
The Specialist BIM Coordinator duties will reflect those for the Project BIM Coordinator but will be specific for discipline or trade-specific models and data deliverables. Responsible for checking, reviewing and
2022-07-11
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Ground rating factor (Cc)
The rating factor Cc = 0.9 is applied to cable sizing calculations for cables installed in the ground (Installation Methods 70 to 73). See BS7671:2018,Appendix 4,Sections3,4 and 5.1.1.
2023-02-05
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