GB2311235A - Flexible fire protection wrap for cable trays and cable ladder racks - Google Patents
Flexible fire protection wrap for cable trays and cable ladder racks Download PDFInfo
- Publication number
- GB2311235A GB2311235A GB9605788A GB9605788A GB2311235A GB 2311235 A GB2311235 A GB 2311235A GB 9605788 A GB9605788 A GB 9605788A GB 9605788 A GB9605788 A GB 9605788A GB 2311235 A GB2311235 A GB 2311235A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cable
- fire protection
- wrap
- flexible
- ladder racks
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000011248 coating agent Substances 0.000 claims abstract description 13
- 238000000576 coating method Methods 0.000 claims abstract description 13
- 239000004593 Epoxy Substances 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 10
- 239000004753 textile Substances 0.000 claims abstract description 10
- 239000000919 ceramic Substances 0.000 claims abstract description 8
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 3
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 3
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 3
- 230000000694 effects Effects 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 2
- 239000013521 mastic Substances 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 238000011900 installation process Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 230000003628 erosive effect Effects 0.000 abstract description 2
- 230000000717 retained effect Effects 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 abstract 1
- 210000001503 joint Anatomy 0.000 description 4
- 239000004744 fabric Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
- A62C2/06—Physical fire-barriers
- A62C2/065—Physical fire-barriers having as the main closure device materials, whose characteristics undergo an irreversible change under high temperatures, e.g. intumescent
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0406—Details thereof
- H02G3/0412—Heat or fire protective means
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Details Of Indoor Wiring (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
A flexible fire protection wrap for cable trays and cable ladder racks manufactured by coating a woven ceramic textile with a flexible twin component epoxy intumescent fire protection product to create a flexible wrap capable of affording fire protection at temperatures in excess of 1100{C, eg. hydrocarbon fire situations. Said wrap is provided with location features 1 to ease installation, stiffening member 2 ensuring that when installed the overlap joint 3 is held closed between retaining device locations, and a non rigid mesh 4 may be incorporated into the coating to improve tear strength and control erosion of the insulation char produced during fire attack. When installed around tray/ladder racks, the wrap forms an elliptical envelope protection which overlaps itself and is retained in position using bands/cords. Joints created between adjacent wraps are covered with joint wraps.
Description
FLEXIBLE FIRE PROTECTION WRAP
FOR CABLE TRAYS & CABLE LADDER RACKS
This invention relates to a flexible fire protection wrap for cable trays and cable ladder racks.
It is general practice for electrical power and/or signal cables to be run throughout an industrial installation fixed to cable trays, cable ladder racks or inside conduit or trunking. For various reasons including safety it is preferred or in certain circumstances essential that certain cable runs be protected from the effects of fire. This is no more apparent than in installations of high risk of fire such as offshore oil/gas production installations and onshore petrochemical refinery installations.
Rigid conduits and cable trunking will by virtue of their construction offer an element of structural integrity and rigid fire protection ducts made up in panel form witn tcnons being holted together are known art.
The major draw back with rigid sectioned fire protection systems is that in retrofit situations where cable trays, cable ladder racks are fixed to structural members in situations of difficult access they are not practical or easy to install and assemble together.
Alternate methods of applying a fire protective coating in-situ to exposed cable runs hy spray or in mastic form create problems for the cables when in service in that heat built up when "on load" cannot be dissipated and thereby derates the current carrying capacity, as does wrapping these with blanket type protection. Further it is difficult to remove such products to effect installation of additional cables or carry out routine maintenance without destroying such methods of protection.
According to the prcsent invention a flexible fire protection wrap is manufactured utilising the properties of two entirely different materials. a woven ceramic textile and a flexible twin component epoxy inturn > cci fire pr)tcclion product.
By coating the woven ceramic textile with the twin component epoxy intumescent fire protection product the heat resistant, flexible cloth with relatively high tear strength is afforded fire protective qualities which will withstand temperatures in excess of 11000c (such as those experienced during a hydrocarbon fire situation) by virtue of the intumescent reaction of the coating. This intumescent coating reacts to form an insulating char above the cloth thereby insulating the cable tray/ladder rack which may be wrapped in it for a period of time to enable current/signals to continue to pass through cables protected by it until such time as the fire may be controlled or personnel may be evacuated.
The fire protection wrap is made up in section lengths to suit certain cable tray/cable ladder rack configurations such that when installed the wrap will form a generally elliptical envelope around the cable tray/cable ladder for which it has been made.
A specific embodiment of the invention is shown in drawing No. 1 which shows the woven ceramic textile fully coated on its upper face with a coating of the flexible twin component intumescent epoxy fire protection product.
Drawing No. 1, feature 1 shows the "hooks" which are fixed to one edge of the coated textile which provide initial location during installation of the invention.
Drawing No. 1, feature 2 shows a reinforcing member which is installed along the edge of the coated textile opposite to that with the hooks installed. It is preferable as shown in the drawing that this is encapsulated within the flexible twin component epoxy intumescent fire protection product coating as should be the hook fixings (thereby protecting them from the effects of the fire attack).
Drawing No. 1, feature 3 shows a section of the coated ceramic woven textile which has been coated with the flexible twin component epoxy intumescent fire protection product on the reverse face in addition to the upper face, this is done to provide the intumescent properties to the leading edge of the wrap when it is overlapped during the installation, thereby preventing fire impingement through the overlap joint.
Drawing No. 1, feature 4 shows the inclusion of a non rigid mesh which may be incorporated into the flexible twin component epoxy intumescent fire protection product coating during the manufacturing stage in order to increase the tear strength of the coating and to reduce erosion of the intumesced char in a fire situation.
Drawing No. 1 also illustrates a separate section of woven ceramic textile which is coated on both the upper and reverse faces (and all four edges) with the flexible twin component epoxy intumescent fire protection product but does not comprise location hook or reinforcing member features. This item is utilised as a "joint wrap" to overlap the butt joint created when two fire protection wraps are installed end to end.
The "joint wrap" forms a intrinsic part of the specific embodiment of the invention as it covers the joints between the fire protection wraps to create and unbroken fire protection wrap.
Drawing No's. 2, 3, 4 & 5 illustrate the installation of the specific embodiment of the invention onto a typical cable tray.
Drawing No. 2 shows the fire protection wrap "hooked" onto the upper edge of the cable tray with the flexible twin component epoxy intumescent fire protection product coating outermost.
Drawing No. 3 shows the fire protection wrap being wrapped around the cable tray and overlapping itself to form a generally elliptical envelope around the cable tray with the flexible twin component epoxy intumescent fire protection product coating outermost.
Drawing No. 4 shows a second fire protection wrap wrapped around the same cable tray adjacent to the first creating a butt joint opening where the two leading edges meet.
Drawing No. 4 also illustrates retaining bands installed around both fire protection wraps to hold the wraps in position and to hold the longitudinal overlap joint closed.
In the specific embodiment of this invention stainless steel bands with fixing buckles are utilised but large "circlips" or straps with threaded fixings or metallic cords with clamps may be used as alternatives.
Drawing No. 5 shows the joint wrap installed wrapped around the fire protection wraps to cover the butt joint opening created between the two wraps.
Drawing No. 5 also illustrates this joint wrap retained in position with bands.
To remove the wraps for routine inspection or maintenance purposes or to install further cables the steps described above are carried out in reverse sequence.
Claims (10)
1. A flexible fire protection wrap for cable trays and cable ladder racks,
manufactured by combining the properties of a woven ceramic textile and a
flexible twin component epoxy intumescent fire protection product by coating the
woven ceramic textile with the flexible twin component epoxy intumescent fire
protection product.
2. A flexible fire protection wrap for cable trays and cable ladder racks as claimed
in Claim 1 wherein the wrap is manufactured provided with location hook features
and stiffening member, provided to ease the installation process, and ensure a
closed overlap joint between retaining devices.
3. A flexible fire protection wrap for cable trays and cable ladder racks as claimed
in Claim 1 and Claim 2 which by virtue of the materials used will provide fire
protection to cable trays and cable ladder racks and contents in a Hydrocarbon
Fire situation.
4. A flexible fire protection wrap for cable trays and cable ladder racks as claimed
in Claim 1 and Claim 2 which will by virtue of its manufacture, when installed in
a non fire load situation during normal service will afford minimal cable ampacity
derating.
5. A flexible fire protection wrap for cable trays and cable ladder racks as claimed
in Claim 1 which by virtue of the materials used will be a rot proof construction
suitable for offshore and/or petrochemical installations.
6. A flexible fire protection wrap for cable trays and cable ladder racks as claimed
in Claim 2 which hy virtue of its construction shall be a dry fix product requiring
no adhesive, mastic, liquid coating application for sealing when installed.
CLAIMS
(continued)
7. A flexible fire protection wrap for cable trays and cable ladder racks as claimed
in Claim 6 which can he simply installed using one basic readily available tool
(banding tool).
8. A flexible fire protection wrap for cable trays and cable ladder racks as claimed
in Claim 2 or Claim 6, which is readily demountable/remountable to effect routine
inspection and maintenance.
9. A flexible fire protection wrap for cable trays and cable ladder racks as claimed
in any previous claim, which when installed and in service is maintenance free.
10. A flexible fire protection wrap for cable trays and cable ladder racks as
substantially described herein with reference to accompanying drawings No's. 1
to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9605788A GB2311235A (en) | 1996-03-19 | 1996-03-19 | Flexible fire protection wrap for cable trays and cable ladder racks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9605788A GB2311235A (en) | 1996-03-19 | 1996-03-19 | Flexible fire protection wrap for cable trays and cable ladder racks |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9605788D0 GB9605788D0 (en) | 1996-05-22 |
| GB2311235A true GB2311235A (en) | 1997-09-24 |
Family
ID=10790671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9605788A Withdrawn GB2311235A (en) | 1996-03-19 | 1996-03-19 | Flexible fire protection wrap for cable trays and cable ladder racks |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2311235A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2763511A1 (en) * | 1997-05-22 | 1998-11-27 | Gruenzweig & Hartmann Montage | FIRE SAFETY METHOD AND DEVICE FOR CABLE TRAILS |
| EP1389815A1 (en) * | 2002-08-14 | 2004-02-18 | Cryospace l'air liquide aerospatiale | Supporting apparatus also protecting at least one linear device against aerothermal stress |
| EP2942193A1 (en) | 2014-05-07 | 2015-11-11 | Kaimann GmbH | Fire retardant insulation material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1575308A (en) * | 1977-07-21 | 1980-09-17 | Advanced Fireproofing Syst | Trunking for tubes pipes and electrical cable |
| GB2265170A (en) * | 1992-03-03 | 1993-09-22 | Munroe Paul Hydraulics | Cylinder rod fire protection system |
| GB2269548A (en) * | 1992-08-14 | 1994-02-16 | Pilkington Plc | Fire resistant insulation materials and manufacture thereof |
-
1996
- 1996-03-19 GB GB9605788A patent/GB2311235A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1575308A (en) * | 1977-07-21 | 1980-09-17 | Advanced Fireproofing Syst | Trunking for tubes pipes and electrical cable |
| GB2265170A (en) * | 1992-03-03 | 1993-09-22 | Munroe Paul Hydraulics | Cylinder rod fire protection system |
| GB2269548A (en) * | 1992-08-14 | 1994-02-16 | Pilkington Plc | Fire resistant insulation materials and manufacture thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2763511A1 (en) * | 1997-05-22 | 1998-11-27 | Gruenzweig & Hartmann Montage | FIRE SAFETY METHOD AND DEVICE FOR CABLE TRAILS |
| EP1389815A1 (en) * | 2002-08-14 | 2004-02-18 | Cryospace l'air liquide aerospatiale | Supporting apparatus also protecting at least one linear device against aerothermal stress |
| FR2843626A1 (en) * | 2002-08-14 | 2004-02-20 | Cryospace L Air Liquide Aerosp | SUPPORT DEVICE CAPABLE OF PROTECTING AT LEAST ONE LINEAR EQUIPMENT AGAINST AEROTHERMAL STRESSES |
| EP2942193A1 (en) | 2014-05-07 | 2015-11-11 | Kaimann GmbH | Fire retardant insulation material |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9605788D0 (en) | 1996-05-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |