- Excavate to the depth of appropriate number of chambers (maximum of 3), plus additional 40mm for depth of base.
- Install chamber centrally within trench.
- Base of excavated area to be well compacted granular material or concrete slab. A drainage hole is required within the base to allow excess water to drain freely.
- Before connecting the duct, the trepanned holes will require cutting out to required diameter. Access boxes take from 63mm to 160mm OD duct pipes.
- Allow minimum of 150mm surrounding the chamber for solid concrete support, which should be of semi-dry workable mixture.
- Ensure concrete fill is evenly distributed around the chamber and level with the top surface. Concrete the frame in at the appropriate height.
JDP offer Access Chamber Systems for Street Lighting, Traffic Signals and the Communications Industry. Our Access Chamber System is suitable and accepted by the water, rail and CCTV sectors. In fact, wherever there is a need for cables and draw pits, this range of products can be used.
Our Access Chamber sections are manufactured in one piece for high strength and rigidity. Identical sections can be stacked to obtain the required height, up to 1metre deep.
A wide range of chamber sections is available, all of which have preformed trepanned rings to simplify cut outs which suit a variety of ducts. Hole sizes are designed to provide a snug fit but allow for variations in duct entry angle.
The lightweight sections are surrounded by in-situ concrete and offer substantial savings in time and money over traditional brick chambers.
In addition to our range of Access Chamber systems we offer high strength anti-slip composite covers available to complement the most popular access chamber sizes. All covers comfortably exceed testing requirements, wet and dry.
The covers are supplied with a deep seated cast aluminium framework which is designed to bear on the reinstated ground allowing flexibility on line and level relative to the chamber.
Standard in black, the anti-slip cover can be supplied badged or plain as required. Other colours can be made to order.
The covers are supplied with a simple locking device as standard. The non-ferrous lid has no scrap value and is corrosion and maintenance free. Where loading demands, a full range of lockable and non-lockable Galvanised Steel Covers and Frames is available.
Features & Benefits
- Economical solution
- Composite Anti slip covers (B125) with locking frame
- No specialist labour required
- High-Strength & impact resistance HDPE
- Badging & various colours available on request
- 63, 110 & 160mm pipe connections
- Trepanned holes to accept 63, 90, 110, 120, 145 and 160mm duct pipe
- Each section fits directly into each other
- Street Lighting & Traffic signals
- Suitable for most ducting applications up to 1000mm deep and 600x600mm access
- Can be used for other applications instead of brick built chambers
Standard Access Chambers
Access and pole boxes are designed to meet the requirements of the Traffic Control Signals Unit (TCSU) specification.