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Behovet av sprinklerskydd ovan undertak med hänsyn till kablars brandklassificering

Hajic, Nerma LU and Åkesson, Emilia LU (2015) In LUTVDG/TVBB--5504--SE VBRM01 20152
Division of Fire Safety Engineering
Abstract
This report analyses the need of sprinkler protection above suspended ceilings with regard to the fire classification of cables. The question formulation for this report is which ignition hazards can lead to a fire in cable ladders above suspended ceilings as well as how the fire classification of cables effect the need of sprinkler protection above suspended ceilings.

The main conclusions that have been made are that it is not legitimate to protect cables classified as B2ca or Cca with sprinkler systems due to their self-extinguishing behavior and the fact that these cables do not show any major heat release when burning. It is appropriate to protect cables classified as Dca or lower with sprinkler systems as they tend to develop... (More)
This report analyses the need of sprinkler protection above suspended ceilings with regard to the fire classification of cables. The question formulation for this report is which ignition hazards can lead to a fire in cable ladders above suspended ceilings as well as how the fire classification of cables effect the need of sprinkler protection above suspended ceilings.

The main conclusions that have been made are that it is not legitimate to protect cables classified as B2ca or Cca with sprinkler systems due to their self-extinguishing behavior and the fact that these cables do not show any major heat release when burning. It is appropriate to protect cables classified as Dca or lower with sprinkler systems as they tend to develop higher heat release rates during fire in addition to a great spread of the fire. However, since there are cables classified as Dca that self-extinguishes after only a short length of cable damage, there is a possibility for the exception of sprinkler protection for certain cables classified as Dca. (Less)
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author
Hajic, Nerma LU and Åkesson, Emilia LU
supervisor
organization
alternative title
The need of sprinkler protection above suspended ceilings with regards to the fire classification of cables
course
VBRM01 20152
year
type
M2 - Bachelor Degree
subject
keywords
cables, fire classification, B2ca, Cca, Dca, sprinkler, BBR 21, electrical overloads, short circuits, conduction, loose connections, NFPA 13, SBF 120:7, damaged cable length, FIPEC, European Commission
publication/series
LUTVDG/TVBB--5504--SE
report number
5504
language
Swedish
id
8409850
date added to LUP
2015-12-17 13:29:44
date last changed
2015-12-17 13:29:44
@misc{8409850,
  abstract     = {This report analyses the need of sprinkler protection above suspended ceilings with regard to the fire classification of cables. The question formulation for this report is which ignition hazards can lead to a fire in cable ladders above suspended ceilings as well as how the fire classification of cables effect the need of sprinkler protection above suspended ceilings.

The main conclusions that have been made are that it is not legitimate to protect cables classified as B2ca or Cca with sprinkler systems due to their self-extinguishing behavior and the fact that these cables do not show any major heat release when burning. It is appropriate to protect cables classified as Dca or lower with sprinkler systems as they tend to develop higher heat release rates during fire in addition to a great spread of the fire. However, since there are cables classified as Dca that self-extinguishes after only a short length of cable damage, there is a possibility for the exception of sprinkler protection for certain cables classified as Dca.},
  author       = {Hajic, Nerma and Åkesson, Emilia},
  keyword      = {cables,fire classification,B2ca,Cca,Dca,sprinkler,BBR 21,electrical overloads,short circuits,conduction,loose connections,NFPA 13,SBF 120:7,damaged cable length,FIPEC,European Commission},
  language     = {swe},
  note         = {Student Paper},
  series       = {LUTVDG/TVBB--5504--SE},
  title        = {Behovet av sprinklerskydd ovan undertak med hänsyn till kablars brandklassificering},
  year         = {2015},
}