Images Courtesy of: Declan Scully – AP, SMSTS, HV Electrical Fitter and Electrician at UK Power Networks
Pictured: 11kV cables installed using cable cleats manufactured by Ellis Patents
Cable cleats are used to fix, clamp and support cables – cleats provide effective short circuit protection, support and retention to LV, MV and HV power cable systems when installed at intervals to circuits to secure electrical installations.
The cable cleats provide restraint and prevent excessive cable movement resultant from fault-current magnetic forces – cleats must be suitably rated for cable size (outside diameter) and anticipated fault current (peak fault level kA).
Correctly specified cable cleats will withstand the forces corresponding to the values of the peak prospective short-circuit current.
Power cable system designers, engineers and specifiers must consider the correct cable fixing or securing system to provide safe and adequate restraint and protection of LV, MV or HV cables – cable cleats restrain movement of cables during electrical fault conditions.
Cable cleats are available to suit all environmental conditions (onshore and offshore), industrial applications and operating voltages – specialist cable fixings for fire resistant, low smoke zero halogen (LSF LSOH) and quadrafoil (Quad) cable installations.
“Every conductor or cable shall have adequate strength, and be so installed as to withstand the electromagnetic forces that may be caused by nay current, including fault current.” IET Wiring Regulations 17th Edition BS7671:2008 (2011).
Selection of cable cleats should consider several key factors:
Thorne & Derrick | Ellis Patents UK Distributors
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Cable Cleaning Wipes
Cable Cleaning | Socomore PF-BR Bitumen Remover Wipes
Bitumen is field-proved to be a highly effective corrosion protection for steel armour wires in array cables, subsea power cables, umbilicals and power umbilicals.
Socomore (formerly PT Technologies) bitumen removal wipes are used for cleaning cables (power, subsea and submarine), umbilicals and electrical equipment including cable rollers and ROV’s – the electrical cleaning solvent wipes are used by cable jointing and technician teams for cleaning and wiping down cables and equipment in the power generation, transmission, distribution and renewable sectors.
PF-BR cleaning wipes from Socomore are extra large, heavily saturated wipes specifically designed for the bitumen removal process during electrical and cabling operations. Used for cable cleaning prior to cable jointing, termination and maintenance of cables, switchgear and network equipment operating at LV MV and HV up to 440kV.
Socomore PF-BR bitumen remover wipes easily remove oils, soils, tar and bitumen. The extra large cleaning wipe reduces the requirement for many smaller wipes, reducing time and wastage during cable preparation which results in cost savings.
The easy hold and grip on the extra large bitumen remover wipe also allows the operator to clean the whole diameter of the cable with one wipe, without touching the cable – suitable for use on static and live cables; low, medium and high voltage applications (up to 440kV).
The bucket wipe system eliminates the transport, storage and logistic issues commonly associated with flammable liquid solvents. Other benefits of the product include reduced solvent consumption and VOC emissions, improving your companies Health & Safety and environmental impact.
Cleanly Remove Bituminous Compound From Submarine Power Cables.
Socomore PF-BR Electrical & Cleaning Wipes – Key Applications
66kV Cable | Typical Offshore Wind Cable Construction | Image Prysmian
Directions for Use
Bitumen Removal | Heat cable to soften bitumen. Holding an end of impregnated wipe lengthways in each hand, vigorously move the wipe up and down the cable until all bitumen is removed. Dispose of all jointers wipes in an appropriate bin.
General Usage | Apply a thin film of PF-BR using liquid or a pre-saturated wipe. Allow a few minutes for surface action to dislodge contaminants. Wipe off with the same pre-saturated wipe or with a clean, dry low lint cloth (recommended). Dispose of all jointers wipes in an appropriate bin.
Cable Cleaning (Jointing Operations) | Follow cable manufacturers guidelines for cable jacket stripping to semi-conductive shield peeling. Clean the cable with PF-BR – conduction and insulation – to remove residue and degrease. Always clean in the same direction from cable outward (conductor) to cable inward (semi-conductive shield) to avoid re-depositing residues already removed. Wipe off with a clean, dry low lint cloth (recommended). It is not necessary to wait for full evaporation before further working on the system. Solvent residues will not affect the subsequent full cure of epoxy resins in cable jointing systems (heat shrink or cold shrink). Dispose of all jointers wipes in an appropriate bin.
Thorne & Derrick International are the UK’s leading stockist and supplier of Cable Pulling & Cable Laying Equipment for the installation of underground land and subsea power cables and overhead lines up to 400kV – the products support cable pulling teams to install LV MV HV cables into trench, cable duct, risers and all forms of cable containment.
➡ Further Resources | Cleaning Cables In The Power Industry | PF SOLVENT
Thorne & Derrick are Specialist Distributors to the UK and international Offshore Wind & Renewable industry to provide safe and reliable LV HV Electrical Cable & Power Distribution Systems up to 66kV – we are highly customer responsive and absolutely committed to providing a world-class service.
Contact our UK Power Team for competitive quotations, fast delivery from stock and technical support or training on all LV-HV products.
Key Product Categories: Duct Seals | Cable Cleats | Cable Glands | Electrical Safety | Arc Flash Protection | Cable Jointing Tools | Cable Pulling | Earthing | Feeder Pillars | Cable Joints LV | Joints & Terminations MV HV
See how T&D support, supply and service the Renewable Energy industry.
MV HV 11kV 33kV 66kV | Cable Joints, Terminations & Connections | Distributors & Stockists for 3M Cold Shrink | Nexans Euromold | Pfisterer CONNEX
Cleaning Cables in the Power IndustryElectrical cables are everywhere for power distribution within cities or industrial areas.
They run within buildings but are also buried. Often forgotten, offshore marine cables are used under the ocean for power transmission too – this includes subsea and submarine cables which require bitumen removal prior to jointing, termination and connection to electrical equipment.
In sewer and water construction and maintenance, and in the energy and communications industries, we use cleaners to degrease cables and accessories during both installation and maintenance activities.
The main problems are the contaminants that accumulate during years of use, that can provide a path over the insulation and increase the risk of tracking. Solvent cleaners remove contaminants found on the cables before installation or jointing and termination.
PF SOLVENT manufactured by Socomore is a multi-purpose cleaner, available in liquid or as an impregnated cable cleaning wipe. It’s a perfect cable cleaning solvent that is specifically designed as an electrical solvent cleaner, including MV and HV.
Are you looking for an efficient power industry cleaner? Keep reading!
Key Points of this Power Industry Solvent Cleaner
Operations and Applications
PF SOLVENT is used for the cleaning and degreasing of cables during jointing and maintenance activities as well as on switchgear and network equipment.
Some companies also use it during substation cleaning and maintenance as well as the degreasing of overhead power lines in rail applications.
The fact that you can use this product liquid or pre-impregnated on wipes, as well as its cleaning effectiveness and capacity to endure use on high voltage/electrical cables makes its use very broad.
PF SOLVENT is suitable for the 3 families of cables:
It can be used to clean the cables but also specific parts of them or accessories like:
Don’t forget generators or electrical transformers.
The product is a residue free solvent that removes:
It cleans semi-conducting insulation shield residue, silicone grease, dirt, joints, etc.
PF SOLVENT Approvals
PF SOLVENT is a multi-approved product. The electrical and cable cleaning product is used, recommended and approved by several energy key players including utility companies such as Electricity North West, ESB, Scottish Power, UK Power Networks, Scottish and Southern and Northern PowerGrid. This cable cleaning product is also approved for use by cable companies like ABB, Nexans, Prysmian, NKT Cables, Pfisterer, Sudkabel and Elastimold.
What are PF SOLVENT main characteristics?
One of the main characteristics is its high flash point.
Due to its intrinsic properties, it is suitable for high, medium and low voltage applications.
It is designed specifically following the recommendations of the Institute of Electrical and Electronics Engineers (IEEE).
Due to its key features and properties, this is an ideal replacement to traditional fast evaporating solvents. An example is the Trichloroethane.
Physical Properties
The appearance is a fluid liquid, you can also buy the product in pre-saturated wipes format.
The specific gravity is 0.765 for the liquid format, or >1 if you use pre-saturated wipes.
PF SOLVENT’s flash point is 61°C.
Thorne & Derrick International are the UK’s leading stockist and supplier of Cable Pulling & Cable Laying Equipment for the installation of underground land and subsea power cables and overhead lines up to 400kV – the products support cable pulling teams to install LV MV HV cables into trench, cable duct, risers and all forms of cable containment.
➡ Further Resources | How To Remove Bitumen From Subsea Cables & Umbilicals Using Socomore Wipes
Thorne & Derrick are Specialist Distributors to the UK and international Offshore Wind & Renewable industry to provide safe and reliable LV HV Electrical Cable & Power Distribution Systems up to 66kV – we are highly customer responsive and absolutely committed to providing a world-class service.
Contact our UK Power Team for competitive quotations, fast delivery from stock and technical support or training on all LV-HV products.
Key Product Categories: Duct Seals | Cable Cleats | Cable Glands | Electrical Safety | Arc Flash Protection | Cable Jointing Tools | Cable Pulling | Earthing | Feeder Pillars | Cable Joints LV | Joints & Terminations MV HV
See how T&D support, supply and service the Renewable Energy industry.
MV HV 11kV 33kV 66kV | Cable Joints, Terminations & Connections | Distributors & Stockists for 3M Cold Shrink | Nexans Euromold | Pfisterer CONNEX
Thorne & Derrick stock and distribute a range of tailored Solar Cable Jointing & Termination Kits complete with cable-specific shielding, earthing bonds and terminals for low voltage power cables used in the renewable energy sector.
Currently working with Solar PV Operations & Maintenance contractors we have trouble-shooted several UK solar farm locations suffering service issues due to substandard and incorrectly specified cable accessories creating multiple weak points within circuits.
Additional shortcomings in solar power system designs have included knowledge shortages on how to prevent moisture ingress, how to provide adequate electrical insulation using heat shrink products, how to to create a safe and secure earth connection and utilising a trusted product to lug the cable ends with appropriate short-circuit ratings and without significantly damaging the conductors. This includes the jointing and termination of solar cables with tinned fine copper strands according to VDE 0295 /IEC 60228, Class 5.
In summary, typically several contractors are using Jointing, Grounding & Terminating products that are suitable for Cu/XLPE/PVC/AWA/PVC 0.6/1kV (BS5467) when they should be using heat shrink cable accessories suitable for Alu/XLPE/ATA 1000V AC/ 1500V DC cable.
Simply, different cable types that require different cable joints and terminations.
Thorne & Derrick | Exclusive UK Distributors of the SPS range of Solar Power Joints & Terminations for Low Voltage DC Power Cables
Working with Shrink Polymer Systems, we have innovated a product range to achieve safe permanent, connection and a proper grounding. Maintenance, repair and replacement of the cables and connectors should only be carried out by authorised and trained personnel.
Kit List
SPS1449 | Heat Shrink Grounding Termination Solar DC Cables ALU-ATA 1500V
➡ INSTALLATION INSTRUCTION ON REQUEST
SPS1306 | Heat Shrink Joint Kit Solar DC Cables ALU-ATA 1500V
➡ INSTALLATION INSTRUCTION ON REQUEST
SPS1449
SPS1449 | Solar DC Cable Termination With Earth Bond
Strip Solar DC Cables
LV MV HV Electrical Safety Equipment & Arc Flash Protection Clothing | Renewables (Solar & Wind Onshore Offshore) | Battery Storage | Data Centres | Oil & Gas | Manufacturing | Substations Switchgear Transformers | Rail | Hazardous Areas
Thorne & Derrick distribute the most extensive range of Cable Installation & Electrical Distribution Equipment to the renewable energy sector – we service UK and international clients working on underground cables, overhead lines, substations and electrical construction at 11kV and up to and EHV transmission and distribution voltages.
LV – Low Voltage Cable Joints, Glands, Cleats, Lugs & Accessories (1000 Volts)
MV HV – Medium & High Voltage Cable Joints, Terminations & Connectors (11kV 33kV EHV)
Renewable Energy – 66kV/72kV Wind Power
Nexans Power Accessories provide a complete range of accessories suitable for energy distribution networks such as pre-moulded EPDM rubber connectors and silicone terminations for cables, epoxy bushings for transformers and switchgear, a wide range of cold and heat shrinkable terminations and joints up to 66kV as well as customised, rated jumper cable leads pre-terminated for medium voltage applications.
Join Nexans for a webinar helping you shape your future Offshore Wind Farm projects by exploring their range of game changing power cable accessories for 72kV networks.
When: Tuesday 20th April 09.00am BST/ 10.00am CET
Duration: 1 hour
https://register.gotowebinar.com/register/4868573030147430924
Thorne & Derrick are UK Distributors for Nexans Power Accessories – this includes WINDLINK a range of medium and high voltage accessories including cable joints, terminations and connectors suitable for wind turbines on offshore and onshore wind energy projects.
Nexans Euromold Interface F separable connectors for terminating MV-HV cables including XLPE EPR 66kV and 72.5kV power cable – a complete range of elbow connectors for termination of medium/high voltage cables into switchgear, transformers, motors and substations on 66kV electricity networks.
Contact us for Competitive Prices & Fast Delivery from Stocks for Heat Shrink, Cold Shrink & EPDM Rubber Connectors, Joints & Terminations up to 66kV.
Go to our Price List and contact us with your enquiries.
Heat Shrink Cable Accessories for 11kV Triplex Cables
Thorne & Derrick International are specialist distributors of LV, MV & HV Cable Accessories, Jointing, Substation & Electrical Equipment – servicing UK and global businesses involved in cable installations, jointing, substation, overhead line and electrical construction at LV, 11kV, 33kV, 66kV and EHV.
Stocking & Supplying | Duct Seals | Cable Cleats | Cable Glands | Electrical Safety | Arc Flash Protection | Jointing Tools | Cable Pulling Eqpt | Earthing & Lightning Protection | Feeder Pillars | Cable Joints LV | Joints & Terminations MV HV
Euromold MV HV | Cable Terminations, Connectors, Elbows & Joints
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