Giant-sized TNB Manhole Series
- General Details
The giant-sized manhole is a working chamber that provides access for electrical maintenance works. The precast giant-sized manhole offers a cost-saving and time-efficient solution. It is designed in parts and panels that can be easily installed on site with minimal construction waste.
External Dimension including Cover Internal Dimension Cover Type / Thickness 2200 (L) x 2200 (W) x 2200 (H) 1800 (L) x 1800 (W) x 1800 (H) Slab Top: 200 / Cast Iron: 200 2200 (L) x 2800 (W) x 2200 (H) 1800 (L) x 2400 (W) x 1800 (H) Slab Top: 200 / Cast Iron: 200 2200 (L) x 2800 (W) x 1600 (H) 1800 (L) x 2400 (W) x 1200 (H) Slab Top: 200 / Cast Iron: 200 2900 (L) x 1700 (W) x 1700 (H) 2400 (L) x 1200 (W) x 1200 (H) Slab Top: 250 / Cast Iron: 250 2900 (L) x 1700 (W) x 2400 (H) 2400 (L) x 2400 (W) x 1200 (H) Slab Top: 250 / Cast Iron: 250 2900 (L) x 2900 (W) x 2300 (H) 2400 (L) x 2400 (W) x 1800 (H) Slab Top: 250 / Cast Iron: 250 2900 (L) x 2900 (W) x 3500 (H) 2400 (L) x 2400 (W) x 3000 (H) Slab Top: 250 / Cast Iron: 250 3500 (L) x 3500 (W) x 1700 (H) 3000 (L) x 3000 (W) x 1200 (H) Slab Top: 250 / Cast Iron: 250 3500 (L) x 3500 (W) x 2300 (H) 3000 (L) x 3000 (W) x 1800 (H) Slab Top: 250 / Cast Iron: 250 3500 (L) x 3500 (W) x 3500 (H) 3000 (L) x 3000 (W) x 3000 (H) Slab Top: 250 / Cast Iron: 250 Notes:
- All precast manholes are designed in accordance to the guidance in BS 8810.
- All dimensions are in millimetre unless stated otherwise.
- Main reinforcement is made from high tensile steel bar in accordance to BS 4449 and BS 4461.
- Able to withstand loading of 22.5 metric tonnes axle load.
- Concrete cube strength is 30 MPa.
- Duct entry diameter comes in either 100mm or 150mm.
- A Product Certificate as proof of authenticity will be issued for all manhole products.
- Precast concrete manhole installation and assembly training can be provided upon request.
- Product Enquiry
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