Electrical
The Electrical team ensures safe, reliable power systems and supports efficient operations across CMPC facilities.
Giant-sized TNB manhole Series
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.
General Details :
| 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 2200 (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 1700 (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.