Earth Bars
➡ View the complete range of Copper Earth Bars – contact us for technical support, stock availability and competitive quotations.
Copper Earth Bars
As the UK’s largest distributor of copper earth bars we can provide excellent service for the complete range of Earthing & Lightning Protection products including copper tape, rods, clamps and ancillary items.
- Earthing bars can be tinned and bases power coated to improve corrosion resistance
- Bars are pre-drilled with cable connection holes with optional threads for installation ease
- Manufactured from highest conductivity and quality copper to British Standards
- Full range of standard, single and twin link types for LV, MV & HV switchroom/substations
- Customised to suit the earthing requirements of your project on short lead times
Substation earthing bars (LV HV) are used to marshall earth connections, connect copper earth rods or earth cable conductors using crimp lugs for terminations in substations, cable pits, feeder pillars and switchgear.
Standard Copper Earth Bars
AN Wallis Part Number | Number of Ways/Terminations | Earth Bar Dimensions (length x width x height) | Unit Weight |
EBC006 | 6 | 400mm x 90mm x 60mm | 2.00kg |
EBC008 | 8 | 500mm x 90mm x 60mm | 2.30kg |
EBC010 | 10 | 650mm x 90mm x 60mm | 3.20kg |
EBC012 | 12 | 750mm x 90mm x 60mm | 4.00kg |
EBC014 | 14 | 850mm x 90mm x 60mm | 4.90kg |
EBC016 | 16 | 950mm x 90mm x 60mm | 5.80kg |
EBC018 | 18 | 1100mm x 90mm x 60mm | 6.70kg |
EBC020 | 20 | 1250mm x 90mm x 60mm | 7.60kg |
EBC024 | 24 | 1400mm x 90mm x 60mm | 8.50kg |
EBC026 | 26 | 1550mm x 90mm x 60mm | 10.30kg |
EBC028 | 28 | 1650mm x 90mm x 60mm | 11.20kg |
EBC030 | 30 | 1800mm x 90mm x 60mm | 12.10kg |
Customised Earth Bars
From Earthing Schematic to Earth Bar Drawing to Custom Manufactured Product
Thorne & Derrick, UK Distributor for AN Wallis, can produce Earth Bar drawings directly from your Earthing schematic, this gives our customers a clear visual representation of the product that we can offer. This drawing can be approved (or amended) by the customer prior to us beginning the manufacturing process. This unique service ensures that the product quoted is the correct product and specification required by the customer avoiding any confusion or potential delays prior to manufacturing.
Thorne & Derrick distribute an extensive range of standard and special earth bars – here are the basic specification and selection factors:
- Type – Standard | Single | Twin | Multiple Links
- Termination Configuration – i.e. 1 Way + Link + 6 Way + Link + 3 Way
- Copper Bar Sizes – 50mm x 6mm Standard | or Custom Specification
- Copper Bar Finish – Bare (Standard) or Tinned Copper
- Cable Lug Termination Size – M6 | M8 | M10 Standard | M12 | Other
- Termination Material – Phosphor Bronze (Standard) | Brass | Stainless Steel
- Termination Spacings – 50mm Standard | Custom Specification
- Length Restrictions – Yes | No | Specify
- Base Material – PVC Standard | AVG Galvanised Steel | None
You can contact us with your enquiry.
➡ Some recent examples of custom manufactured products to client specifications.
6 Way + Link + 1 Way Tinned Copper Earth Bar, Stainless Steel Bolts, Mounted on Insulators & Black PVC Base. | |
6 Way + Link + 1 Way Plain Copper Earth Bar, Brass Bolts, Mounted on Insulators & AVG Galv. Steel Base. | |
6 Way + Link Plain Copper Earth Bar, Phosphor Bronze Bolts, Mounted on Insulators & Black PVC Base. | |
16 Way + Link + 2 Way Plain Copper Earth Bar, Brass Bolts, Mounted on Insulators & AVG Galv. Steel Base. | |
Telecommunications Earth Bar. | |
24 Way Special Earth Bar (2 Rows of 12 No. for Double Holed Lugs), 100x6mm Plain Copper Bar, M10 Brass Bolts, Mounted on Insulators & AVG Galv. Steel Base. | |
10 Hole Earth Bar, 50x6mm Plain Copper Bar, No Bolts, Mounted on Insulators & AVG Galv. Steel Base Feet. | |
5 Way + Link + 3 Way Earth Bar, 50x6mm Plain Copper Bar, M10 Phosphor Bronze Bolts, Mounted on Insulators & Black PVC Base. | |
1 Way + Link + 1 Way Tinned Earth Bar, 50x6mm Tinned Copper Bar, M10 Brass Bolts, Mounted on Insulators & AVG Galv. Steel Base. | |
Thorne & Derrick can design and deliver customised copper earth bars to suit specific project requirements – here is an example of a non-standard earth bar manufactured from hard drawn tinned copper bar (50 x 6mm).
- Length – 1000mm
- Centres – 50mm
- Stud Assembly – M10 x 35 Brass Hex Head Set c/w Flat Washer, Spring Washer & 2 Nuts
- Insulators – Reinforced Polyester – Colour Black
- Base – Galvanised Steel
Earth Bars With Single LinkS
AN Wallis Part Number | Number of Ways/Terminations | Earth Bar Dimensions (length x width x height) | Unit weight |
EBC106 | 6 | 485mm x 90mm x 60mm | 2.50kg |
EBC108 | 8 | 585mm x 90mm x 60mm | 3.00kg |
EBC110 | 10 | 735mm x 90mm x 60mm | 3.90kg |
EBC112 | 12 | 835mm x 90mm x 60mm | 4.70kg |
EBC114 | 14 | 935mm x 90mm x 60mm | 5.60kg |
EBC116 | 16 | 1035mm x 90mm x 60mm | 6.50kg |
EBC118 | 18 | 1185mm x 90mm x 60mm | 7.40kg |
EBC120 | 20 | 1335mm x 90mm x 60mm | 8.30kg |
EBC122 | 22 | 1385mm x 90mm x 60mm | 9.20kg |
EBC124 | 24 | 1485mm x 90mm x 60mm | 10.10kg |
EBC126 | 26 | 1635mm x 90mm x 60mm | 11.00kg |
EBC128 | 28 | 1735mm x 90mm x 60mm | 11.90kg |
EBC130 | 30 | 1885mm x 90mm x 60mm | 12.80kg |
Earth Bars With Twin Disconnecting Links
AN Wallis Part Number | Number of Ways/Terminations | Earth Bar Dimensions (length x width x height) | Unit Weight |
EBC206 | 6 | 570mm x 90mm x 60mm | 3.10kg |
EBC208 | 8 | 670mm x 90mm x 60mm | 3.70kg |
EBC210 | 10 | 820mm x 90mm x 60mm | 4.50kg |
EBC212 | 12 | 920mm x 90mm x 60mm | 5.30kg |
EBC214 | 14 | 1020mm x 90mm x 60mm | 6.20kg |
EBC216 | 16 | 1120mm x 90mm x 60mm | 7.10kg |
EBC218 | 18 | 1270mm x 90mm x 60mm | 8.00kg |
EBC220 | 20 | 1420mm x 90mm x 60mm | 8.90kg |
EBC222 | 22 | 1470mm x 90mm x 60mm | 9.80kg |
EBC224 | 24 | 1570mm x 90mm x 60mm | 10.70kg |
EBC226 | 26 | 1720mm x 90mm x 60mm | 11.60kg |
EBC228 | 28 | 1820mm x 90mm x 60mm | 12.50kg |
EBC230 | 30 | 1885mm x 90mm x 60mm | 13.40kg |
Earth Bars & Marshalling Bars
All earth connections are usually labelled and connected via separate connections to a dedicated copper earth bar (GRP/brick-built designs) or marshalling bar (integral/basement designs) which in turn shall be connected to the main transformer/switchgear earth terminal to allow:
- Personnel to determine if the earthing is intact when entering the substation
- The earthing to be easily identified
- The earth resistance to be measured using a clamp meter
Note: At new enclosed high voltage substations the HV earth bar within the LV feeder pillar shall not be used to marshal the earthing connections as access, particularly at IDNO substations, to the LV cabinet/pillar is not always available. However it is acceptable to use the HV earth bar within the LV feeder pillar at existing outdoor sites for all earth connections to prevent theft.
Temper Designation Standard | Tensile Strength (Ksi) | ||
Min | Max | Yield Strength (Ksi) Min | |
060 Soft | 30 | 38 | … |
H00 Cold-Rolled 1/8 Hard | 32 | 40 | 20 |
H01 Cold-Rolled, high yield 1/4 Hard | 34 | 42 | 28 |
H02 Half Hard | 37 | 46 | 30 |
H03 Three quarter Hard | 41 | 50 | 32 |
H04 | 43 | 52 | 35 |