TNB Manhole Series
- General Details
Precast concrete electrical manholes are used to protect vital connections and controls for modern electricity distribution.
Our precast concrete manholes are produced in a controlled environment and provide superior performance for long-term solution.
We produce an array range of electrical manholes that come in different sizes and dimensions.
Product Model
External Dimension including Cover Internal Dimension Gross Weight (kg) Duct Ways (Side/End) Cover Type TNB 4′ x 3′ x 2′
1440 (L) x 1440 (W) x 800 (H) 1200 (L) x 900 (W) x 660 (H) 2000 6 Rectangular Iron
TNB 4′ x 4′ x 4′ 1560 (L) x 1560 (W) x 1600 (H) 1200 (L) x 1200 (W) x 1200 (H) 5000 6 Concrete Slab / Rectangular Iron
TNB 6′ x 4′ x 4′
2120 (L) x 1520 (W) x 1600 (H) 1800 (L) x 1200 (W) x 1200 (H) 6500 6 Concrete Slab / Rectangular Iron TNB 6′ x 6′ x 4′ 2120 (L) x 2120 (W) x 1600 (H) 1800 (L) x 1800 (W) x 1200 (H) 8000 6 Concrete Slab / Rectangular Iron
Notes:
- All precast manholes are designed in accordance to the guidance in BS 8810.
- All dimensions are in millimetres 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
Product Enquiry Form