The Ultimate BIM Knowledge Hub
Your one-stop resource for BIM electrical.
Revit Guides
Data Management
ELI5
Product Data Definition
A Product Data Definition (PDD) document intended to provide a consistent methodology for the definition, creation, management and sharing of product information throughout the life cycle of an asset, based
Open Data
The Open Data Institute (ODI) defines open data as information that is licensed for anyone to use for any purpose at no cost. Open data can be accessed, used and
Basic protection
Protection against electric shock under fault-free conditions;use of barriers,placing out of reach,and so forth.
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
How to respond to request for proposal (RFP)
Introduction It can be said that the digitalization of construction began with designers moving from drawing boards to computers. [1] In Architecture, Engineering, Construction and Operation (ACEO), the focus has
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
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
BS EN ISO 14004:2016
Environmental management systems General guidelines on implementation
DWG
DWG (“drawing format”) is a binary file format licensed by Autodesk and used for storing two and limited three-dimensional design data and metadata. It is the native format for several
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
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:
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
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
Project delivery team
In respect of asset lifetime PAS 1192-2:2013, describes one project delivery team, the term is connected with word ‘contract’ meaning one or many companies or individuals employed either directly or
Organizational Information Requirements (OIR)
ELI5-S1: BIM Basics E7: OIR explained information requirements in relation to organizational objectives BS EN ISO 19650‑1:2018 (3.3.3)
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
Leadership in Energy and Environmental Design
An internationally recognized green building certification system confirms the level of the sustainability performance of an asset. Confirming the level at which the asset was designed and built using strategies
knowledge model
information model that expresses knowledge in a computer interpretable structure Note 1 to entry: A knowledge model consists of a number of expressions of facts about a concept, each of which
BIM Functions
ELI5-S1 BIM Basics E17_BIM Functions Understanding BIM Functions: A Simple Guide for Beginners Building Information Modeling (BIM) is transforming the construction industry by enabling better collaboration, design precision, and efficient
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.
Level of detail (LOD)
Level of detail (LOD) it is a term introduced by PAS 1192, used in relation with management of the progression and uses of information. Typically referred to geometrical information There
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,
inertia
In the context of BIM and Digital Construction, the term is referred to as institutional and personal inertia to change, one of the most common barriers to BIM implementation.
BS EN ISO 16739-1:2020
Industry Foundation Classes (IFC) for data sharing in the construction and facility management industries Part 1: Data schema
Harmonic
The presence of harmonic content in the line conductors of a three-phase and neutral circuit can give rise to excessive levels of load current in the neutral conductor.
identification
The “identification” is ISO 19650 term equivalent to PAS 1192 term ‘naming’
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
Management of Sustainability in BIM
Introduction Sustainability in terms of Building Information Modelling (BIM) was defined as the sixth dimension of BIM by a large consulting firm as “what to do in terms of sustainability”[1]
ISO/TS 12911:2012
Framework for building information modelling (BIM) guidance STANDARDS BY ISO/TC 59/SC 13
Appointee
UK BIM Alliance responding to the inconsistency between current guidance of CIC BIM Protocol, Second Edition 2018 and ISO 19650 Framework published updated Information protocol to support BS EN
Digital twin
ELI5-S1 BIM Basics E19_Digital Twin “The digital twin is the virtual representation of a physical object or system across its life-cycle. It uses real-time data and other sources to enable
Subcommittee (SC)
a Subcommittee (SC), which addresses a specialized area within a TC; https://www.iso.org/glossary.html
Navigating Construction Projects with Incomplete Building Services Design: Real-world Solutions Wanted 🛠️
Here is my list of reasons why so often we have incomplete Building Services Design before the project starts construction: Incomplete Building Services Design (BSD) before the commencement of construction
Exchange Information Requirements (EIR)
The Exchange Information Requirements (EIR) term introduced by BS EN 19650 replaces the PAS 1192 term Employer Information Requirements (EIR) on all projects where BS EN ISO 19650 compliance is
Design Build
A contract type used in construction, typical characteristics: There is a single contract for design services and construction services; design and construction of the project may be in sequential phases
Nominal line voltage to earth (Uo)
Uo Nominal line voltage to earth. Assumed to be 230 V for grid connected systems.
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
Resources
In the context of project management, the resources refer to optimizing the use of resources for successful project execution and the management of resources in the project. [1] Therefore, the
Problem Solving Process
Understanding the Problem-Solving Process
Effective problem-solving is at the heart of success in any field. Drawing inspiration from the book “General Relativity for Babies” by Chris Ferrie, which simplifies complex topics into easy-to-understand concepts, I have created a straightforward guide to the problem-solving process.
VADs
Guide to Visual Alarm Devices (VADs) in Fire Safety In high-noise workspaces or locations requiring hearing protection, Visual Alarm Devices (VADs) play a critical role in fire safety. They ensure
Appointment
Equivalent to PAS1192 term ‘Contract’ The more generic term appointment has been used in ISO 19650 instead of contract. This means one term can be used for both external contracts
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
BS 8541-4:2012
Library objects for architecture, engineering and construction Part 4: Attributes for specification and assessment – Code of practice Note: ISO 22014 and ISO 22057 are under development tosupersede BS 8541,
CDE state
ELI5-S1: BIM Basics E5: CDE areas and states This term replaces the ‘CDE area’ PAS 1192 term, the idea is the location of the information (container) is not important but
Organisational Purpose
A sense of organisational purpose is an essential part of promoting organisational effectiveness, which motivates individuals to do work and create something or justify the existence of something. Cooperation
information
reinterpretable representation of data in a formalized manner suitable for communication, interpretation or processing [cited from ISO 19650-1:2018(en), 3.3.1]
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
NWC
NWC is a cache file. “When you open a CAD file in Navisworks, by default, a corresponding cache file (NWC) is created, which contains all of the conversion details required
Waste
The opposite of value. There are eight basic types of waste: motion waiting transportation of goods over-processing under utilization overproduction inventory defects [1] [1] The Massachusetts Port Authority, 2015. BIM
Budget
The tender response for designing, constructing and operating the existing building and the additional extension shall include the project budget’s bid documentation. The budget must incorporate the total amount of
