Cable Transits

Cable Transits – Sealing Cables Against Fire, Gas & Water Ingress

Cable Transits – Sealing Cables Against Fire, Gas & Water Ingress

Cable Transit Frames

Sealing Cables Against Fire, Gas & Water Ingress

Filoform manufacture 2 types of Cable Transit Frames:  the A frame and B frame that can partner with the Filoseal +HD and Filoseal +HD FIRE to create cable transits that are able to seal and protect LV MV HV power, control and instrumentation cables.

These cable transits provide guaranteed and reliable protection to LV MV HV Electrical Building Services & Substations against fire, gas and water ingress where the space or structure will not allow fitting of a cable seal into the structure itself – the Filoseal +HD Fire is fire tested to the Australian Standard AS15360.4-2014.

Frame A and Frame B are modular in construction based around a working opening size of 120mm x 120mm (A Frame) and 120mm x 240mm (B Frame) respectively and can be assembled in almost any size required – both cable transit frames are manufactured from zinc plated galvanised steel for corrosion resistance.

The cable transit frames have been tested to EN1366-3:2009 for a period of up to 4 hours on a standard installation when used in conjunction with Filoseal +HD FIRE sealing materials.

A and B cable transit frames provide cable sealing solutions for the following applications:

  1. Irregular Wall Openings –  versatile cable transit frames provides aesthetic, flush cable sealing installation
  2. Poor Quality Walls –  mechanical type transit frame overcomes the reliance of the traditional mastic seal bonding to structure
  3. Congested Cable Ducts – cable frame allows splaying and separation of cables to obtain a proper seal in over populated cable ducts
  4. Building Risers – sealing of cables and pipes on vertical and lateral riser ducts, pipes or conduit applications
MV HV Cable Sealing 11kV 33kV

Substation Cable Seals – the cable transit frames are specified to provide excellent sealing of Medium & High Voltage Cables at 11kV/33kV, including 3 core (BS6622) and single core Triplex (BS7870) cables.

➡ The sealing system utilising the galvanised steel cable transit frames can be adopted to seal an extensive range of cable configurations including single, trefoil and bundled cable installations.

Design of the Cable Transit Frames

The design of the cable transit system accompanied by these frames decreases the need for upfront design so there is no need to consider complicated modular insert sizes as the system is filled with the widely utility approved Filoseal +HD and Filoseal +HD FIRE sealing systems.

Note: ➡ A and B type cable transit frames can be assembled around existing cable runs and installation which should eliminate downtime of the associated cable circuits and networks.

Filoform A Frame Cable Transit

Filoform Type A Frame Cable Transit

Filoform B Frame Cable Transit

Filoform Type B Frame Cable Transit

Cable Transit System (A & B Frame)

Features

  • Minimal cable transit frame dimensions outside the wall aperture means fitting is simplified without resort to specialist sub-contractors
  • Modular cable transit frame to fit around existing LV-HV cables or around large type connectors
  • Zinc plated frames for a longer life with excellent corrosion resistance for industrial, harsh and substation applications, 11kV-33kV
  • Spare apertures can be used in the future for retrofitting of cables
  • Fixing holes to be drilled by the user to suit their individual cable sealing application

All features of the Filoseal +HD and Filoseal +HD FIRE are still applicable:

  • Up to 4 hours fire resistance in cable transit frames (single side)
  • Tested to BS EN1366-3 2009
  • Up to 2 bar pressure resistance
  • 100Kg pulling force on the cables when sealed
  • 10xd at 45° with 1 bar pressure bending test

Cable Transit Key

A & B Type Frames

The modularity of the cable transit frame is based around two opening sizes; 120 x 120mm (type A transit) or 120 x 240mm (type B transit) which follows the frame sizing of regular cable transit systems. For a larger hole a multi-opening cable transit frame is built to suit the application.

Built Frame Size Notation

Cable transit frames of Type A (120mm x 120mm opening). For clarity, all frames are 120mm wide, height is subject to change.

Frames types followed by an ‘xn’ notation means there are n number of openings set out horizontally in a row.

Frames types followed by a ‘+type A notation mean the frames are stacked vertically on top of each other.

So a transit frame denoted A+A+A x8 means there are 24 openings in total of size A, in columns of 3 high 8 times over.

A x 1 Frame A x 2 Frame A x A Frame A x A x 2 Frame A x A x A Frame A x A x A x 3 Frame
A x 1 (1 opening, 120x120mm) A x 2 (2 openings, side by side 120x120mm) A+A (2 openings on top of each other 120×120) A+A x 2 (4 openings, 2 in a row x 2 high 120x120mm) A+A+A (3 openings on top of each other 120×120) A+A+A x 3 (9 openings, 3 in a row x 3 high 120x120mm)

 

Built Frame Size Notation

Cable transit frames of Type B (120mm x 240mm opening). For clarity, all frames are 120mm wide, height is subject to change.

Frames types followed by an ‘xn’ notation means there are n number of openings set out horizontally in a row.

Frames types followed by a ‘+type B’ notation mean the frames are stacked vertically on top of each other.

So a transit frame denoted B+B+B x8 means there are 24 openings in total of size B, in columns of 3 high 8 times over.

B x 1 Frame B x 2 Frame B x B Frame B x B x 2 Frame B x B x B Frame B x B x B x 3 Frame
B x 1 (1 opening, 120x240mm) B x 2 (2 openings, side by side 120x240mm) B+B (2 openings on top of each other 120x240mm) B+B x 2 (4 openings, 2 in a row x 2 high 120x240mm) B+B+B (3 openings on top of each other 120x240mm) B+B+B x 3 (9 openings, 3 in a row x 3 high 120x240mm)

A Type Cable Transit Frame Specifications

120 x 120mm Frame

A Type Cable Transit Frame Part Number A Type Cable Transit Frame Description
A x 1 A x 1 (1 opening, 120 x 120)
A x 2 A x 2 (2 openings side by side, 120 x 120mm)
A x 3 A x 3 (3 openings side by side, 120x120mm)
A x 4 A x 4 (4 openings side by side, 120x120mm)
A x 5 A x 5 (5 openings side by side, 120x120mm)
A x 6 A x 6 (6 openings side by side, 120x120mm)
A x 7 A x 7 (7 openings side by side, 120x120mm)
A x 8 A x 8 (8 openings side by side, 120x120mm)
A + A A + A (2 openings on top of each other 120x120mm)
A + A x 2 A + A x 2 (4 openings, 2 in a row x 2 high 120x120mm)
A + A x 3 A + A x 3 (6 openings, 3 in a row x 2 high 120x120mm)
A + A x 4 A + A x 4 (8 openings, 4 in a row x 2 high 120x120mm)
A + A x 5 A + A x 5 (10 openings, 5 in a row x 2 high 120x120mm)
A + A x 6 A + A x 6 (12 openings, 6 in a row x 2 high 120x120mm)
A + A x 7 A + A x 7 (14 openings, 7 in a row x 2 high 120x120mm)
A + A x 8 A + A x 8 (16 openings, 8 in a row x 2 high 120x120mm)
A + A + A A + A + A (3 openings on top of each other 120x120mm)
A + A + A x 2 A + A + A x 2 (6 openings, 2 in a row x 3 high 120x120mm)
A + A + A x 3 A + A + A x 3 (9 openings, 3 in a row x 3 high 120x120mm)
A + A + A x 4 A + A + A x 4 (12 openings, 4 in a row x 3 high 120x120mm)
A + A + A x 5 A + A + A x 5 (15 openings, 5 in a row x 3 high 120x120mm)
A + A + A x 6 A + A + A x 6 (18 openings, 6 in a row x 3 high 120x120mm)
A + A + A x 7 A + A + A x 7 (21 openings, 7 in a row x 3 high 120x120mm)
A + A + A x 8 A + A + A x 8 (24 openings, 8 in a row x 3 high 120x120mm)

b Type Cable Transit Frame Specifications

120 x 240mm Frame

B Type Cable Transit Frame Part Number B Type Cable Transit Frame Description
B x 1 B x 1 (1 opening, 120×240)
B x 2 B x 2 (2 openings side by side, 120×240)
B x 3 B x 3 (3 openings side by side, 120×240)
B x 4 B x 4 (4 openings side by side, 120×240)
B x 5 B x 5 (5 openings side by side, 120×240)
B x 6 B x 6 (6 openings side by side, 120×240)
B x 7 B x 7 (7 openings side by side, 120×240)
B x 8 B x 8 (8 openings side by side, 120×240)
B + B B + B (2 openings on top of each other 120x240mm)
B + B x 2 B + B x 2 (4 openings, 2 in a row x 2 high 120x240mm)
B + B x 3 B + B x 3 (6 openings, 3 in a row x 2 high 120x240mm)
B + B x 4 B + B x 4 (8 openings, 4 in a row x 2 high 120x240mm)
B + B x 5 B + B x 5 (10 openings, 5 in a row x 2 high 120x240mm)
B + B x 6 B + B x 6 (12 openings, 6 in a row x 2 high 120x240mm)
B + B x 7 B + B x 7 (14 openings, 7 in a row x 2 high 120x240mm)
B + B x 8 B + B x 8 (16 openings, 8 in a row x 2 high 120x240mm)
B + B + B B + B + B (3 openings on top of each other 120x240mm)
B + B + B x 2 B + B + B x 2 (6 openings, 2 in a row x 3 high 120x240mm)
B + B + B x 3 B + B + B x 3 (8 openings, 3 in a row x 3 high 120x240mm)
B + B + B x 4 B + B + B x 4 (12 openings, 4 in a row x 3 high 120x240mm)
B + B + B x 5 B + B + B x 5 (15 openings, 2 in a row x 3 high 120x240mm)
B + B + B x 6 B + B + B x 6 (18 openings, 6 in a row x 3 high 120x240mm)
B + B + B x 7 B + B + B x 7 (21 openings, 7 in a row x 3 high 120x240mm)
B + B + B x 8 B + B + B x 8 (24 openings, 8 in a row x 3 high 120x240mm)

 

Fire Test at Exova Warrington Fire Using Filoform A Frame

Fire Test at Exova Warrington Fire Using Filoform A Frame

Cable Transits Sealing Cables Against Fire, Gas & Water Ingress With Filoform B Frame

Cable Transits Sealing Cables Against Fire, Gas & Water Ingress With Filoform B Frame

FiloSeal+HD Duct Sealing System

FiloSeal+HD Duct Sealing System