Thermal resistivity of the soil rating factor (Cs)
Revit Guides
Data Management
The rating factor Cs is applied to cable sizing calculations for cable installed in the ground. Its value varies according to the thermal resistivity of the soil in which the cable is installed. See BS7671:2018,Table4B3.
Dictionary
Organizational Information Requirements (OIR)
ELI5-S1: BIM Basics E7: OIR explained information requirements in relation
2022-07-24
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BS 8541-4:2012
Library objects for architecture, engineering and construction Part 4: Attributes
2022-07-15
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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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