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BS EN 1366-5:2021

BS EN 1366-5:2021

$142.49

Fire resistance tests for service installations – Service ducts and shafts

Published By Publication Date Number of Pages
BSI 2021 30
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This document specifies a method for determining the fire resistance of horizontal service ducts and vertical service shafts, which pass through walls or floors and enclose pipes and cables, to classify them according to EN 13501-2. The test scenario examines the behaviour of ducts and shafts exposed to fire either from outside or from inside the system. This document is intended to be read in conjunction with EN 1363?1.

This document does not examine the risk of fire spread as a result of thermal conduction along the piping or cabling installed in service ducts or shafts or thermal conduction through the media these pipes carry. It does not cover the risk of damage produced by thermal elongation or shortening of tubes and cables as a result of fire or damaged pipe suspensions. This document does not give guidance on how to test one, two or three sided service ducts or shafts.

NOTE

Guidance on testing service ducts and shafts of less than four sides will be covered in the extended field of application rules being developed by CEN/TC 127.

This test can be used for systems with boards and also for such systems with continuous covering with intumescent materials on the boards. It cannot be used for systems where intumescent material is only applied in the range of the penetration.

This test is unsuitable for evaluating service ducts or shafts with internal barriers at walls and floors.

This test is unsuitable for evaluating fire protective systems for cable systems and associated components with maintenance of integrity in case of fire. This is covered by EN 1366?11: Fire protective systems for cable systems and associated components – Part 11: Fire protective systems for cable systems and associated components.

Whilst the walls of service ducts or shafts tested to this method may provide specified levels of integrity or insulation, testing according this document does not replace the testing of the functional endurance of small electrical cables which is covered in EN 50200.

Fire resistance testing of ducts for air distribution systems is covered in EN 1366?1.

PDF Catalog

PDF Pages PDF Title
2 undefined
8 1 Scope
2 Normative references
9 3 Terms and definitions
4 Test equipment
4.1 General
4.2 Furnace
4.3 Loading equipment
4.4 Gas extraction equipment (optional)
10 5 Test conditions
5.1 Furnace
5.2 Loading
6 Test specimen
6.1 Size
6.1.1 General
6.1.2 Length
6.1.3 Cross-section
6.2 Number
11 6.3 Design
6.3.1 General
6.3.2 Duct and shaft arrangement
6.3.2.1 General
6.3.2.2 Joints in horizontal service ducts
6.3.2.3 Joints in vertical service shafts
12 7 Installation of test specimen
7.1 General
13 7.2 Standard supporting construction
7.3 Non-standard supporting constructions
8 Conditioning
8.1 General
8.2 Water based sealing materials
9 Application of instrumentation
9.1 Thermocouples
9.1.1 Furnace thermocouples (plate thermometers)
14 9.1.2 Thermocouple locations
9.1.2.1 General
9.1.2.2 Temperature at the penetration of the service duct or shaft through the wall or floor
9.1.2.3 Temperature on unexposed face of access door or panel
9.1.2.4 Temperature on service outlets
9.1.2.5 Temperature of the protected suspension device
9.2 Pressure
10 Test procedure
10.1 General
15 10.2 Test measurements and observations
10.2.1 General
10.2.2 Integrity
10.2.2.1 Integrity during fire exposure at the outside
10.2.3 Insulation (temperature of the surfaces outside the furnace – for both fire exposure at the inside and exposure at the outside)
10.2.4 Additional observations
16 10.3 Termination of the test
11 Performance criteria
11.1 Integrity
11.2 Insulation
11.2.1 Insulation criteria for service ducts and shafts with combustible and noncombustible services
12 Test report
17 13 Field of direct application of test results
13.1 Walls or floors through which the service ducts or shafts lead
13.2 Sizes of ducts or shafts
13.3 Shapes
13.4 Admissible services
13.5 Suspension devices for ducts
13.5.1 Material and sizing
18 13.5.2 Elongation
13.6 Distances
13.6.1 Distance to the supporting construction
13.6.2 Distance of the first joint after the supporting construction
13.6.3 Distance between service ducts or service shafts in practice
13.6.4 Distance between service outlets and penetrated wall or floor
13.7 Access panels
13.8 Service outlets

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BS EN 1366-5:2021
$142.49