Earthing Link Box with SVL | LBM 1S, 2S, 3S Types
Earthing LinK Box SVL
The Pfisterer Earthing Link Box with SVLs, available in LBM S1, S2 & S3 Types are designed for reliable cross bonding and earthing concepts, which are made through removable links. Offering a robust wall type design, withstanding harsh operating conditions and contributes to high availability of plants.
Pfisterer’s LBM S1, S2, S3 Types of Earthing Link Boxes (registered National Grid types) contain arrestors, functioning as Sheath Voltage Limiters (SVLs), based on the bonding requirements. The SVL is a non-linear resistor protective device having characteristics of a high impedance to currents flow when the voltage across it is low, but extremely low resistance when the voltage is high.
Thorne & Derrick are approved suppliers & stockists of the complete Pfisterer product range, including the Earthing Link Box with SVLs, as well as Link Boxes which don’t contain Sheath Voltage Limiters, such as the Pfisterer Earthing Link Box LBM 3A Types.
Link Box LBM S1, S2, S3 Parts & Technical Specifications
The following table provides a further insight on the complete part list for the Pfisterer Earthing Link Box SVL LBM S1, S2, S3 Types:
| Item No. | Pfisterer Earthing Link Box SVL Parts | Materials |
| 1 | Cabinet | Stainless Steel |
| 2 | Cable Flexcon | Tinned Copper |
| 3 | Surge Arrester (*) | ZnO |
| 4 | Gland for Bonding Cable | Stainless Steel |
| 5 | Gland for Earthing Cable | Stainless Steel |
| 6 | Support Insulator | EPOXY |
| 7 | Earthing Bus Bar | Tinned Copper |
| 8 | Box Earthing Bar | Stainless Steel |
| 9 | Protection Cover | PLEXYGLASS |
| 10 | Door Fixing Bolts | Stainless Steel |
| 11 | Padlock Facility | Stainless Steel |
| 12 | Cover | Stainless Steel |
| 13 | Extension Nut (M12) | Stainless Steel |
| 14 | Disconnectable Earthing Bar | Tinned Copper |
The following table provides a further insight on the technical specifications for the Pfisterer Earthing Link Box SVL LBM S1, S2, S3 Types:
| Pfisterer Earthing Link Box SVL LBM S1, S2, S3 Types Specifications | |
| Protection Degree | IP66 |
| Bonding Cable (Coaxial) | 95-400mm² |
| Weight | App. 27kg |
| Volume of Filling Compound (optional) | – |
| Colour | RAL 7032 |
| Conform to NGTS 3.5.4 / NSI 5 / NSI 24 | |
132kV Link Boxes | MV HV Power Cables & Systems
The MV HV Link Boxes are paired and installed with cold/heat shrink MV HV Cable Joints & Terminations on medium voltage or high voltage power systems, providing ease of access to shield breaks for test purposes, as well as limiting voltage build-up on the sheath. Technically better known as “Disconnectable Link Box” for its sound design and construction features make for an ideal MV or HV underground power cable system accessory, alongside other essential MV HV accessories, such as Cable Lugs, Cable Connectors & Screened Separable Connectors. Link Boxes are also electrically and mechanically one of the integral accessories of HV underground cable Bonding Systems, associated with HV XLPE power cable systems.
The following table includes the complete distribution 132kV cable systems catalogue for EMELEC & Pfisterer:
| Item Type | Details | Factory |
| Cable | 630mm² stranded (compacted) Aluminium, XLPE, Longitudinally, Welded Aluminium (LWA) sheath, PE + Graphite, 132kV cable | Bozüyük, Turkey |
| ODSE | ESS145-C45 outdoor sealing end termination. | Kadan, Czech Republic |
| Joint | MSA145-XKMG sheath interruption joint. | Kadan, Czech Republic |
| MSA145-DOMG straight through joint – Added 05/05/2021 | Kadan, Czech Republic | |
| HVLB | Single Way Earthing Link Box – Type: LB.W.E.1.1 | Istanbul, Turkey |
| Cross Bonding Link Pillar – Type: LB.P.CB.3SA.3.1 | Istanbul, Turkey | |
| 3-Way Earthing Link Pillar – Type: LB.P.E.3.1 | Istanbul, Turkey | |
| Single Way Earthing Link Box with SVL – Type: LB.W.1SA.1.1 | Istanbul, Turkey | |
| 3-Way Earthing Link Box for Underground Use – Type: LB.U.E.3.1 | Istanbul, Turkey | |
| Cross Bonding Link Box for Underground Use – Type: LB.U.CB.3SA.3.1 | Istanbul, Turkey | |
| Bonding Leads | 240mm² single core and concentric bonding leads (with water blocking) | Bozüyük, Turkey |
National Grid | Powering The UK & US
EMELEC/Pfisterer Earthing Link Box SVL LBM S1, S2, S3 Types completed the National Grid Type Registration process. The Registration covers 132kV Link Boxes, as well as wall-mounted and buried link box types, across the voltage range 132kV – 400kV and is supported by authoritative test data from the IPH GmbH high voltage laboratories.
Who Are National Grid?
In the UK, National Grid own and develop the high-voltage electricity transmission network in England and Wales, taking electricity from where it’s generated to where it’s needed. National Grid Electricity Distribution delivers electricity to over 20 million people across homes and businesses in the Midlands, South West England, and South Wales.
EMELEC
Trusted Engineering & Contracting Company | Actively Engaged in MV HV Link Boxes Production
EMELEC up to 132kV Link Boxes are used with cable joints and terminations to provide easy access to shield breaks for test purposes and to limit voltage build-up on the sheath; suitable for operating voltages of 600/1000V (LV), 11kV 33kV (MV) & 66kV 132kV (HV).
Pfisterer Earthing Link Boxes with SVL LBM 1S, 2S, 3S Types manufactured in conjunction with EMELEC, through experience and a reputable engineering background. Their extensive range of electrical Link Boxes are designed for bonding/grounding connections, are made through removable links. EMELEC Link Boxes 6kV, 10kV, 15kV & 18kV but may also contain arrestors functioning as Sheath Voltage Limiters (SVLs).
Pfisterer Earthing Link Box LBM P1, P2, P3 TypesDownload
