Globally Unique Identifier (GUID)
Revit Guides
Data Management
globally unique identifier (GUID) its a unique object identifier that guarantees its uniqueness throughout its entire life unique, the identifier is usually generated using an algorithm
a unique identifier generated using an algorithm [1]
identifier given to a product that guarantees its uniqueness throughout its entire life [2]
In Windows operating system and Windows applications GUIDs are part of the universally unique ID (UUID) standard, initially developed to keep track of instances of Component Object Model (COM) objects in the Windows registry.
It is a 128-bit number created to identify specific components, hardware, software, files, user accounts, database entries, and other items.[3]
[1] BS EN ISO 23386:2020, In ISO 16739‑1 and ISO 12006‑3 the compressed version of GUID is used.
[2] BS ISO 6707-2:2017, 3.2.46, In BS EN ISO 16739 and BS EN ISO 12006-3, the compressed version of GUID is used.
The compressed version can be transposed into the long version programmatically.
[3] Globally Unique Identifier (GUID), techope
Back-up Protection
Circuit-breaker manufacturers publish tables showing combinations of pairs of circuitbreakers,
Secondary Supply – diverse cable route
This guidance covers the routing of secondary supply cables from a life safety generator to the ATS (Automatic Transfer Switch), and the final equipment with reference to:
BS 7671:2018+A2:2022, specifically Section 560: Safety Services
BS 8519:2020, with emphasis on Clause 7 (Cable Routing) and Clause 11 (Cable Selection)
The goal: clarify requirements for the diverse cable routing and maintain circuit integrity under fire conditions for systems that support life safety and fire-fighting applications, such as sprinkler pumps, fire-fighting lifts, and smoke control systems.
