Principle and application
Discover the purpose of earth braids
Function of the earth braids
Tinned copper earth braid is used to connect metal structures: frames, racks, electrical cabinets and machines, in order to create the conditions required to ensure equipotentiality of the installations
The mechanical structure of the braid provides flexibility and tensile strength, and permits optimum placement by means of a bolted connection. Copper is used to ensure excellent electrical conductivity, while tin-plating ensures good resistance to oxidation.
Earth braids are used in substations and other electrical installations, as well as in industrial piping.
Definition of the admissible current of the braids
Industrial piping systems
Discover a specific application
Earth braids for the protection of pipes
Flexible tinned copper earth braids are often used to protect people and piping systems by connecting flanges together, as they provide electrical continuity.
As a manufacturer, MALTEP can produce custom flexible earthing braids that meet this type of application. Our braid is made of a small diameter copper wire (0.15 to 0.20 mm) and offers very low impedance and flexibility, making it easy to install.
Estimation of the length of a earth braid
- L : Lengths between centres (mm)
- D : Flange diameter (mm)
- K : Diameter at the center of the bolts (mm)
- E : Thickness of the flange (mm)
- e : Thickness of the flange gasket (mm)
Products range
Discover our product range
MALTEP standard product range
Available at MALTEP in different lengths and cross-sections, as well as in several spacing and terminal diameters, the tinned copper ground braids can also be made to measure. MALTEP also offers ground braids with round lugs, manufacturing on drawings, etc...
Custom earth braids
Discover our manufacturing capacities
Discover our online earth braid configurator
MALTEP can manufacture, for you and with the shortest leadtime, copper earth braids from 6mm² to 240mm² and more. For that, two ways to proceed:
- Use our online earth braid configurator
- Tell us your characteristics
For any quote request, please specify, in the absence of a plan :
• The type of braid (flat braid or round braid)
• The required cross-section
• The length between axes (L)
• The quantity for each type
• The bolt diameter or the hole diameter at each end (D1 and D2)
Correspondence between bolts and hole diameter
| Correspondence Bolts / Hole diameter (mm) | |
| M5 | 5.3 |
| M6 | 6.5 |
| M8 | 8.5 |
| M10 | 10.5 |
| M12 | 13 |
| M14 | 15 |
| M16 | 17 |
| M18 | 19 |
| M20 | 21 |
| M22 | 23 |
| M24 | 25 |
| M27 | 19 |
| M30 | 32 |
| M33 | 35 |
| M36 | 39 |
