The Ultimate BIM Knowledge Hub

Your one-stop resource for BIM electrical.
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Data Management

ELI5

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.

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Dictionary
Jarek Wityk

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.

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Dictionary
Jarek Wityk

Volume strategy

ELI5-S1: BIM Basics E10: Volume Strategy (spatial) explained Introduction Volume Strategy enables information management, spatial coordination, and concurrent engineering, ultimately fitting together like a complex 3D jigsaw puzzle, where each

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Classification and Standardisation
Jarek Wityk

Organisational capability

Potential and expertise suggesting ability. Capability implies an organisation’s capacity to engage in a range of constructive activities Organisational capability is also referred to as organisational competence, although a capability refers to the

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Common Data Environment (CDE)
Jarek Wityk

single source of truth

In AEC industry with reference to information systems management, the single source of truth refers to Common Data Environment (CDE) The single source of truth is a method of structuring

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Dictionary
Jarek Wityk

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,

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unit

standard measurements of physical quantities that require a clear definition to be useful. The International Bureau of Weights and Measures (BIPM) is responsible for ensuring the standardization of the use

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Conditions of Satisfaction

An explicit description by a Customer of all the actual requirements that must be satisfied by the Performer in order for the Customer to feel that he or she received

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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

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Appointing party

Appointing party term introduced in BS EN ISO 19650 it is meant to replace PAS 1192 term ‘Employer’ ISO 19650 term depends on where in the hierarchy the employer is

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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

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Dictionary
Jarek Wityk

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

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Prospective fault current (Ipf)

Prospective Fault Current (Ipf) is the value of overcurrent at a given point in a circuit resulting from a fault of negligible impedance between live conductors having a difference of

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Ecocide

In environmental justice, ecocide is the criminalised activity of substantially harming or destroying ecosystems in their entirety or by harming individual species. At time of writing, 10 countries have criminalised

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merge request

A merge request corresponds to the creation of one property and the deactivation of several properties. After validation of the merge request by the experts, the merged properties are deactivated.

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Supplier

In the construction industry, ‘supplier’ refers to a provider of services or goods. The supplier can provide goods or services directly to the ultimate client or another supplier. The publication

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definition

representation of a concept by a descriptive statement which serves to differentiate it from related concepts Note 1 to entry: A definition may be expressed as natural language text (a textual

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verification

confirmation, through the provision of objective evidence, that specified requirements have beenfulfilled [SOURCE: BS EN 17412‑1:2020] Verification is the process of checking that the product/service meets the specification, it will

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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

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Blog
Jarek Wityk

BS8519 awareness of the changes

An email debate on whether BS 8519’s “dedicated cable support” rules really apply to central battery emergency lighting. We unpack the scope of BS 8519 vs BS 5266-1 and BS 7671, and what that means for segregation, containment and life-safety wiring on real projects.

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Cable k2s2

k2s2 its an Energy withstand of cable in A2s. For example,a cable with a withstand of 12 x 104 A2s, can sustain without permanentdamage,a fault current of 1,000 A for

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Dictionary
Jarek Wityk

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

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Two Stage Open Book

A procurement method introduced by Constructing Excellence and the Cabinet Office where a client invites prospective integrated teams to bid for a project based on their ability to deliver an outline brief

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Instructions
Jarek Wityk

LTF_Lighting-Fixture Ring

Create unlimited lighting variations with parametric control.
The PD_LTF_Lighting-Fixture_Luminaire-Ring Family is a powerful, fully parametric Revit family that allows users to create limitless lighting fixture configurations.

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purposeful

having a definite objective and strong desire to achieve it In the context of BIM, it describes a people-centric transformation, regarding information as an asset

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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

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Portable document format (PDF)

It’s a versatile file format developed by Adobe that allows people to easily present and exchange documents – regardless of the software, hardware, or operating systems used by anyone who

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Value Stream Mapping

A diagram of every step involved in the material and information flows needed to bring a product from request to delivery. [1] [1] The Massachusetts Port Authority, 2015. BIM Guidelines

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Diagram comparing coordination failure and selective coordination between protective devices in an electrical system. The top section shows a 32Amp circuit tripping a 63Amp breaker, causing upstream devices rated 125Amp and 160Amp to disconnect unnecessarily. The bottom section demonstrates selective coordination, where a 125Amp device isolates the fault without affecting upstream devices rated 250Amp and 600Amp.
Blog
Jarek Wityk

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.

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Ze

That part of the earth fault loop impedance which is external to the circuit under consideration. For the supply cable it will be the impedance external to the installation. For

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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

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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

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Business goals

Business goals drive organisational outcomes, helping to keep the focus on the company’s important short and long term priorities. The goals must be defined, understood, tracked, analysed, and measured to

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Look Ahead Plan

A short interval plan, based on the pull/phase plan, that identifies all the activities to be performed in the next 6 (or other) weeks. The 6W Look-Ahead Schedule (LAS) is

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major change

change that affects the meaning, function or intended useNOTE Definition applies to properties and groups of properties.PAS 14191:2020

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Project Committee (PC)

a Project Committee (PC), which is created to develop one standard, after which it is disbanded. https://www.iso.org/glossary.html

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Post-contract BEP

This PAS 1192 term has been superseded by ISO 19650 term Post-appointment BEP. It is a BIM Execution Plan (BEP) which shall be re-submitted by the Lead Appointed Party and

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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 information summarised in

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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

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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.

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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

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Capital delivery phase

Delivery phase [ISO1950] Delivery phase is a simplification of capital/delivery phase without making any assumption about how the project funding is being treated in financial accounting

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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.

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