ISO 21927-3-2021 pdf download.Smoke and heat control systems – Part 3: Specifications for powered smoke and heat exhaust ventilators. This document specifies the product characteristics for powered smoke and heat control ventilators (fans) intended to he used as part of a powered smoke and heat control ventilation system in construction works. It provides test and assessment methods of the characteristics and the conformance criteria of the test assessment results. This document applies to the following: a) fans for smoke and heat control ventilation; b) impulse/jet fans for smoke and heat control ventilation. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 281, Rolling bearings — Dynamic load ratings and rating life ISO 834-1. Fire-resistance tests — Elements of building construction — Part 1: General requirements ISO 5167 (all parts), Measurement offluid flow by means of pressure differential devices inserted in circular cross-section conduits running full ISO 5801, Fans — Performance testing using standardized airways IEC 60034-1, Rotating electrical machines — Part 1: Rating and performance IEC 60034-2-1, Rotating electrical machines — Part 2-1: Standard methods for determining losses and efficiency from tests (excluding machines for traction vehicles) IEC 60085, Electrical insulation — Thermal evaluation and designation IEC 60584-1, Thermocouples — Part 1: EMFspecifications and tolerances EN 1363-1, Fire resistance tests — Part 1: General Requirements EN 13501-4, Fire classification of construction products and building elements — Part 4: Classification using data from fire resistance tests on components of smoke control systems 3 Terms, definitions, symbols and abbreviated terms For the purposes of this document, the following terms and definitions apply.ISO 21927-3 pdf download.
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