Roxtec SRC Cable Transit Frames

Sealing Cables & Cable Ducts

Roxtec SRC cable transit frames have a metal frame which is designed for load bearing structures – the Roxtec frame is suitable for installation also around existing multiple or single pre-terminated cables and pipes in one opening.

Roxtec rectangular cable transit frames are used to provide a reliable cable sealing ensuring safety, efficiency and long-term operational reliability – Roxtec cable seals protect against fire, gas, water, dusts, pests, blast load and electromagnetic interference.

➡ Visit Cable Transits to view the complete range of sealing systems for cable and pipe entries on cabinets, switchgear, electrical enclosures and substations (LV 11kV 33kV 66kV 132kV) – see Round Cable Seals for sealing round type cable ducts and pipe entries.

Roxtec SRC cable transit frame have rounded corners to reduce stress concentration and the risk of cracks around the frame.

Installing Roxtec SRC Cable Transit Frames

Contact T&D should you require support on the installation of Roxtec SRC cable transit frames:

1. Make sure that the inside surfaces of the frame are free from dirt or dust.
2. Lubricate the inside surfaces of the frame with Roxtec Lubricant, especially into the corners.
3. Adapt modules, which are to hold cables or pipes, by peeling off layers until you reach the gap seen in pic. 4. The halves may not differ by more than one layer.
4. Achieve a 0.1-1.0 mm gap between the two halves when held against the cable/pipe.

5. Lubricate all modules for the frame thoroughly, both the inside and the outside surfaces, using Roxtec Lubricant.

R20 Installation using SRC Wedge

1. Insert the lubricated RM 20/0 RC modules in the bottom corners.
2. Fill the space between the corner modules with RM 20w40 or RM 20 modules and insert a stayplate on top.
3. Continue to fill up the packing space of the frame according to your installation plan (transit plan). It is recommended to seal cables / pipes at the bottom of the frame and put spare modules on top.
4. Insert a stayplate on top of every finished row of modules.

5. Before inserting the final row of modules, insert two stayplates.
6. Separate the two stayplates and insert the final row of modules between the stayplates.
7. Drop the upper stayplate on top of the modules.
8. Lubricate all sides of the SRC wedge sparsely, except front and back. Please read the markings on the wedge and turn it correctly before inserting it in the top of the frame (standard position). Face with “Stayplate this side” must always face a stayplate.

Add the corner piece to the side of the SRC wedge that faces the 90 degree corner of the frame, and the SRC wedge will make a tight seal.

9. Tighten the screws until full stop, approx. 20 Nm (15ft.lb.).
10. Attach the Wedge Clip to the wedge bolts to check that the wedge is properly tightened.
To be able to use an SRC wedge anywhere within the frame (besides top or bottom), use 2 corner pieces and 4 RM 20/0 RC modules. A standard wedge can also be used anywhere within the frame (except top or bottom).

R40 Installation

1. Insert the lubricated RM 40/0 RC modules in the bottom corners.
2. Fill the space between the corner modules with RM 40, RM 20 or RM 20w40 modules and insert a stayplate on top.
3. Fill the packing space with modules and stayplates acc. to your installation plan (transit plan). It is recommended to seal cables/pipes at the bottom of the frame and put spare modules on top. Make room for the wedge at desired position.
4. Lubricate all sides of the wedge sparsely, except front and back. Please read the markings on the wedge and turn it correctly before inserting it into the frame. Face with “Stayplate this side” must always face a stayplate.

5. Tighten the screws until full stop, approx. 20 Nm (15ft.lb.).
6. Attach the Wedge Clip to the wedge bolts to check that the wedge is properly tightened.

R60 Installation

1. Insert the lubricated RM 60/0 RC modules in the bottom corners.
2. Fill the space between the corner modules with RM 40 modules and insert a stayplate on top.
3. Fill the packing space with modules and stayplates acc. to your installation plan (transit plan). It is recommended to seal cables/pipes at the bottom of the frame and put spare modules on top. Make room for the wedge at desired position.
4. Lubricate all sides of the wedge sparsely, except front and back. Please read the markings on the wedge and turn it correctly before inserting it into the frame. Face with “Stayplate this side” must always face a stayplate.

5. Tighten the screws until full stop, approx. 20 Nm (15ft.lb.).
6. Attach the Wedge Clip to the wedge bolts to check that the wedge is properly tightened.

Sealing Cable Ducts With Roxtec – cable sealing modules consist of two halves with removable layers and a centre core which is removed to permit cable or pipe installation in medium/high voltage substations, hazardous areas and electrical infrastructure