Back-up Protection
Revit Guides
Data Management
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 than its breaking capacity (Icu).
The Icu of the upstream devicemust equal or exceed Ipf at its point of installation.
Emergency Lighting Standards and Regulations
Understanding the Dual-Standard Approach: BS EN 1838:2024 vs BS 5266-1:2016
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.
Geographic Information System (GIS)
A geographic information system (GIS) is a framework for gathering,
