Blog

33kV Onshore High Voltage Cable Junction Cabinets – Nexans ONJC-S

Nexans ONJC-S Onshore Junction Cabinet

• by Chris Dodds T&D - estimated reading time 5 minutes  

Cable Cabinets

Nexans ONJC-S is an onshore junction cabinet designed, tested and manufactured for onshore renewable projects that can be used as a disconnecting point for branching between grid and applications – for applications with MV-HV separable connectors up to 42kV (630A) according to CENELEC HD 629.1 S2.

The ONJC-S onshore junction cabinet has a pedestal type powder coated ASIS 304 stainless steel housing structure, robust design with IP43 degree protection (IEC60529/EN62262 ed1:2002-02) and RAL 7037 coolcoat UV resistant coating.

33kV Onshore High Voltage Cable Junction Cabinets – Nexans ONJC-S

Nexans ONJC-S – Benefits

Medium/High Voltage MV HV Cable Cabinets

• The cable termination cabinet design is specifically suitable to be installed in outside conditions
• High accessibility for ease of installation
• Ideal test and demarcation point
• Time saving on installation and down time
• Reducing cost of installation
• Reduction of footprint

Nexans ONJC-S 33kV Onshore High Voltage Cable Junction Cabinets

Onshore Cable Junction Cabinet Comprising

1. Pedestal type powder coated metal housing with keyed (europrofile cylinder) frontplate
2. 2 way screened junction on stainless steel base plate and cover
3. Disconnectable earth
4. Tinned earth bar 5×30 mm on insulated stand offs
5. Earthing connection point
6. Cable cleats arrangement, up to 4 rails for max. 12 single core cables with outer cable diameter 26-52 mm
7. Removable frontplate to facilitate cable access

33kV Onshore High Voltage Cable Junction Cabinets

33kV Onshore High Voltage Cable Junction Cabinets – Dimensions

Cable Cleat Arrangements

Options: non standard colour for powder coated housing and anti-graffitti treatment of the powder coated housing.

Nexans cables include British & European standard medium/high voltage (MV-HV) power cables for distribution of 11kV to 33kV electricity using polymeric insulated (XLPE) single or 3-core cables, with armour/unarmoured and copper wire or copper tape screen options.

THORNE & DERRICK are national distributors LV, MV & HV Cable Installation, Jointing, Substation & Electrical Equipment – we service UK and global businesses involved in cable installations, cable jointing, substation, overhead line and electrical construction at LV, 11kV, 33kV and EHV.

Since 1985, T&D have established an international reputation based on SERVICE | INTEGRITY | TRUST.

Contact us for 3M Electrical, ABB, Alroc, AN Wallis, CATU Electrical, Cembre, Centriforce, CMP, CSD, Elastimold, Ellis Patents, Emtelle, Euromold, Filoform , Furse, Lucy Electric & Zodion, Nexans, Pfisterer, Polypipe, Prysmian, Roxtec, Sicame, WT Henley.

Invitation

Thorne & Derrick invite you to join LinkedIn’s largest LV-HV Electrical Discussion Group : Low & High Voltage Power, Cabling, Jointing & Electricals. Discussion subjects include cable installations, cable jointing, substation, overhead line and electrical construction at LV, 11kV, 33kV and EHV. Network, engage and promote your profile, company or products with over 10,000 influencers.

Nexans Power Cable Accessories For Wind Energy Projects – MV & HV Cables

Nexans Power Cable Accessories For Wind Energy Projects

• by Chris Dodds T&D - estimated reading time 5 minutes  

T&D 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 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 cables for medium voltage applications.

Low Voltage

With the Nexans & Euromold product portfolio of Cable Accessories is a whole range of products for low voltage networks: terminations, straight and branch joints, gel or resin filled, heat or cold shrink joints.

Connection technology

Nexans manufactures ferrules and cable lugs to connect low, medium and high voltage power lines and cables. A wide range of cable crimping joints and lugs, mechanical connectors and cable lugs with shear-off-head bolts for connecting different conductor cross-sections of aluminium and copper cables is available.

Cable Terminations

Terminations are used to connect polymeric insulated cables to MV-HV electrical equipment and for the outdoor terminating onto overhead lines or busbars. Indoor terminations are designed for use in controlled environmental conditions and subject to light condensation.

Outdoor cable terminations are designed for prolonged exposure to sunshine and other weather conditions.

Cable Joints

Straight joints are designed for jointing screened polymeric cables to be laid in air or directly buried – these cable joints are fully screened and fully submersible.

Junction solutions

For offshore wind power parks, the Offshore Junction Cabinets and the Offshore Junction Frames are used as a connecting point for internal tower cables to external subsea power and array cables. Nexans OJC and OJF product lines are part of our dedicated WINDLINK offer.

Separable connectors

Separable connectors are designed to connect polymeric insulated cables to equipment such as 11kV/33kV transformers or switchgear. These cable connection products are suitable for indoor and outdoor use with thick conductive EPDM jacket to provide a total “safe to touch” screen which ensures safety for personnel.

Cable jumpers

Cable jumpers are prefabricated lengths of cable on which a separable connector or a cable termination is installed at each end.

Surge arresters

Surge arresters are designed to protect medium voltage components, including transformers, equipment, cable and accessories from high voltage surges caused by lightning and switching up to 66kV.

Equipment bushing

Equipment bushings are epoxy insulated parts for use in oil or gas insulated equipment, such as transformers, switchgear and capacitors up to 66kV.

High Voltage Cable Accessories up to 66/72.5kV

Slip-on cable accessories for 66kV/72.5kV wind applications: separable connectors to connect cable to switchgear or transformers, slip-on terminations to connect cable to equipment and for outdoor termination of cables onto overhead lines or busbars, slip-on joints with mechanical connectors for jointing cables inside the wind park.

The range of Nexans Medium & High Voltage Power Accessories consists of:

Nexans Power Cable Accessories

Mechanical Cable Lug (C-Series)	To connect low voltage cables to the generator
Mechanical Split Bolt Connector (SB-Series)	To connect tower cables between tower segments
Roll-on Sleeve (RS-Series)	To connect tower cables between tower segments
Mechanical Transition Connector (M-Series)	To connect tower cables with different conductor cross-section and material
Slip-on Cable Termination (AIN & AFN)	To connect loop or tower cables to the transformer up to 66kV
Heat Shrinkable Cable Joint (36GTS1)	For jointing 33kV power cables inside the wind park
MV Windlink Cable Jumper	Custom made cable length with installed connectors and/or cable terminations
Separable Connector (Euromold 480TB)	To connect tower cables to 33kV switchgear
Separable Connector (Euromold 484TB)	To connect array cables to switchgear or connecting point
Coupling Connector (Euromold 804PB)	To connect array cables to switchgear or connecting point.
Heat Shrinkable Cable Termination (TTGI1 & TTGI3)	To connect standard MV cables to switchgear or transformer
Cold Shrinkable Cable Joints (Nexans 24CSJ-S)	For jointing power cables inside the wind park
Junction Box (Euromold 400J4/M)	To interconnect different sections and change cable type
Offshore Junction Cabinet (Nexans OJC)	Disconnecting point for internal tower cables to external subsea array cables
Separable Connector (Euromold 158LR)	To connect MV-HV generator cables to generator or transformer
Surge Arrester (Euromold 800SA)	To protect switchgear or transformer
Equipment Bushing (Euromold 400AR-1)	Interface for connector with transformer or generator
Separable Connector (Euromold 909TB)	To connect cables to switchgear or transformer up to 66kV
Coupling Connector (Euromold 909PB)	To connect cables to switchgear or transformer
Mechanical Cable Lug / Connector For Large Cross-Sections. (C/M Series)	Mechanical connectors up to 52kV with shear-off-head bolts and transverse grooving (M-Series)
Slip-on Cable Termination (Nexans AFN72)	To connect cables to equipment and for outdoor terminating on overhead lines or busbars
Slip-on Cable Joint (Nexans 72MSJ)	Slip-on single core straight joint with mechanical connector. For jointing cables inside the wind park

Thorne & Derrick

Nexans Main UK Stockist & Distributor

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

11kV Cable Joint – Mankind Beats Nature In Muddy Joint Hole

• Application: Jointing 11kV Cables Using Heat Shrink Cable Joints
• Product Type: 11kV Cable Joint
• Cable Jointer: Robert Coleman Director at Power Jointing Services Ltd

• by Chris Dodds T&D - estimated reading time 5 minutes  

Special thanks to Robert Coleman for his step by step explanation about the processes involved in this type of 11kV joint installation – with over 30 years cable jointing experience at 11/33kV Robert is qualified to explain the skills and techniques required to effectively work on medium/high voltage power cables in challenging workplace locations.

11kV Cable Joint

It was the morning after the day from Hell with 60mph gusting winds and rain lashing sideways from bleak skies – not the conditions for comfortable 11kV jointing. The bottom of the cable joint hole was 6 inches deep in slop so first job to do was to dig a small sump hole and bail out the excess water. Wooden blocks were used to elevate the cleaned down 11kV cables and keep them out of the mud bath.

The 11kV cable is the relatively new UKPN standard – aluminium wire screen 11kV Triplex with 300sqmm conductors and jointed using UKPN Issue Tyco SMOE 64541 heat shrink cable joints in an underground cable trench.

Alroc – Cable Tools (LV MV HV EHV Cable Jointers Tools)

11kV Jointing Tools

Using the correct cable jointing tools is critical – failure to achieve semicon screen cut perfection and excellent insulation removal will compromise life cycle of the cable accessory and ultimately cable circuit.

Alroc PG3 cable strippers were used for ringing off and stripping the outer MDPE cable sheath to the dimensions shown in the jointing instructions.

The Alroc semi con stripper is used on the fully bonded semicon screen layer to 40mm from the aluminium wire screen cut.

The Alroc insulation stripper is set at 60mm and used to remove cable core insulation to desired length of the mechanical shearbolt connector. A thorough clean of the XLPE insulation with PF impregnated cable cleaning wipes working from the insulation cut towards the semicon ensures all traces of the semicon have been removed.

A light blow over with a slack flame from a gas torch is required to dry residue from the cable wipe – then apply the yellow void filler at the screen cut to dimensions in the instructions. A stress control tube is then applied in line with the insulation cut and heat shrinked using a slack flame working toward the aluminium wire screen.

Aluminium screen wires are bent back and stripped so the semicon layer is exposed.

A build up of black tape is used and then the brass ring slid onto the cable and over the black tape for a snug fit – the wires are brought down onto ring and temporarily secured with black and red heat shrink tubes.

Once the heat shrink tubes are applied then the 11kV shearbolt connectors can be “snapped off” in sequence – use putty to fill voids in the cable connection then black void filling mastic is applied over the bolts and around the connector. Next slide black and red heat shrink tubes over the shearbolt connectors and heat shrink using a slack flame working from the centre and around the 11kV cable.

Once fully shrunk allow the 11kV joint to cool before the copper braid tape is applied half lap, side to side, of the cable joint and the copper braid secured down on both sides of the aluminium wire screen with Jubilee clips. Repeat this process on the other 11kV cores before finally wrapping the last copper braid tape around the whole cable joint, half lap and securing at the end with a half hitch.

Thorne & Derrick International

Should you require any assistance with the selection or specification of Prysmian cable joints please do not hesitate to contact us.

T&D distribute the most extensive range of MV & HV Cable Joints & Terminations, Cable Installation Accessories & Cable Pulling Equipment – we service UK and international clients working on underground cables, overhead lines, substation earthing and electrical construction at LV, 11kV, 33kV and EHV transmission and distribution voltages.

• Key Products: MV-HV Cable Joints & Terminations, Cable Cleats, Duct Seals, Cable Transits, Underground Cable Protection, Cable Spikers, Cable Jointing Tools, Feeder Pillars, Cable Ducting, Earth Tapes, Electrical Safety, Cable Glands, Arc Flash Protection & Fusegear.

• Distributors for: 3M, ABB, Alroc, Band-It, Catu, Cembre, Centriforce, CMP, Elastimold, Ellis Patents, Emtelle, Furse, Lucy Zodion, Nexans Euromold, Pfisterer, Polypipe, Prysmian, Roxtec.

LV – Low Voltage Cable Joints, Glands, Cleats, Lugs & Accessories (1000 Volts)

MV HV – Medium & High Voltage Cable Joints, Terminations & Connectors (11kV 33kV EHV)

Cable Laying – Underground Cable Covers, Ducting, Seals & Cable Pulling Equipment

More…

T&D’s Power Blog covers: LV MV HV & EHV Transmission & Distribution, Substations, Switchgear, Cable Jointing & Termination, Cable Fault & Repair, Underground Cables.

➡ Visit Power Blog.

Detecting Arcing, Tracking & Corona On MV HV Cables, Substations & Switchgear

Sonus XT – Compact Ultrasonic Testing Device for Preventive Maintenance ON MV HV Switchgear & Cables

• uploaded by Chris Dodds - reading time 2 minutes

The versatility of the Sonus XT makes it ideally suited to work with any plant maintenance program and the perfect complement to other Predictive Maintenance (PDM) Technology.

The ultrasonic testing device is easy to use converting ultrasound into audible signals showing instantaneous and maximum sound level readings in decibels.

Ultrasound detection can be utilised to transmit early warning signs that detect faults on connections in cabinets and OHL (when using the parabolic dish – available as an optional extra). Inspections can be performed quickly and safely by plant personnel with minimal training. Fast and accurate diagnosis of problems using the Sonus XT will save you time and money.

The Sonus XT can quickly and safely perform closed panel airborne ultrasound inspections of electrical equipment including Switchgear, Switchboards, Panelboards, Transformers, Motor Control Centers and Process Equipment Panels to detect early warning signs including: Arcing, Tracking and Corona.

➡ Please note Sonus XT detects PD at above 5kV as it definitely won’t work on LV systems.

Sonus XT – Features & Benefits

• Compact and robust construction aluminum body handheld unit
• Intuitive controls using five soft key pushbuttons
• Easy to use unit converts ultrasound into audible signals and shows instantaneous and maximum sound level readings in decibels
• Versatile quick-change Probe Accessories available for airborne and contact based applications
• High quality behind-the-head style headset compatible for use with hardhats
• Minimal training is required to get a Predictive Maintenance program using Ultrasound up and running
• Detect early warning signs of problems in medium/high voltage electrical and mechanical assets long before they become failures
• Find leaks and save on energy costs – finding and fixing compressed air leaks can often reduce energy costs by up to 30%
• Collect baseline and trend information on mechanical asset performance to streamline maintenance planning

Compact Ultrasonic Testing Device – Sonus XT

Sonus XT Ultrasonic Detector

Technical Data

In the video below learn how to use the Sonus XT with the IRISS VP12 US, VPDS and the S60 CAT Phone with the Sonus Vue APP.

This below video introduces the Sonus PD handheld switchgear partial discharge detector. The Sonus PD is specifically designed for partial discharge and airborne emissions detection on medium and high voltage switchgear.

Detecting Arcing, Tracking & Corona On MV HV Cables, Substations & Switchgear

About IRISS

IRISS provide their customers with unsurpassed quality at every touch point. They focus on what we do best by continuously improving infrared (IR) window technology, building reliable products, exceeding customer expectations, remaining a science-based R&D company, and protecting their polymer IR windows through Our Unconditional Lifetime Warranty.

THORNE & DERRICK are national distributors of LV, MV & HV Cable Installation, Jointing, Substation & Electrical Equipment – we service UK and global businesses involved in cable installations, cable jointing, substation earthing, overhead line and electrical construction at LV, 11kV, 33kV and EHV.

Since 1985, T&D have established an international reputation based on SERVICE | INTEGRITY | TRUST.

LV MV HV 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 

Contact us for 3M Electrical, ABB, Alroc, AN Wallis, CATU Electrical, Cembre, Centriforce, CMP, CSD, Elastimold, Ellis Patents, Emtelle, Euromold, Filoform, Furse, Lucy Electric & Zodion, Nexans, Pfisterer, Polypipe, Prysmian, Roxtec, Sicame, WT Henley.

Invitation

Thorne & Derrick invite you to join LinkedIn’s largest LV-HV Electrical Discussion Group : Low & High Voltage Power, Cabling, Jointing & Electricals. 

Discussion subjects include cable installations, cable jointing, substation, overhead line and electrical construction at LV, 11kV, 33kV and EHV. Network, engage and promote your profile, company or products with over 10,000 influencers.

11kV 33kV Cable Termination Using Nexans Euromold Interface C Connectors Into Brush Transformer

• Application: Nexans Euromold Interface C Connectors Into Brush Transformer
• Cable Termination Type: Nexans Euromold Interface C Bushing Connector
• Electrical Equipment: 11kV 33kV Transformer
• Cable Jointer: Matthew Horn – HV Cable Jointer at Dragon Infrastructure Solutions

• by Chris Dodds T&D - estimated reading time 5 minutes  

Euromold Connectors

11kV 33kV

Nexans Euromold Interface C separable connectors are suitable for terminating MV-HV cables up to 33kV – a complete range of screened elbow and tee connectors for termination of medium/high voltage cables into switchgear, transformers and substations up to 33kV.

This type of medium voltage cable connector is extensively specified by UK DNO and power distribution operators to connect MV cables onto 11kV/33kV transformers with outer cone type bushings on electrical equipment.

Euromold Interface C separable connectors are suitable for termination of polymeric (XLPE EPR) insulated cables with copper wire or tape screen, wire armoured (SWA/AWA), wire braided or unarmoured cables into MV-HV Electrical Equipment with Interface C bushings.

➡ Euromold connectors are available in Interface A-F specifications to terminate MV-HV cables into switchgear, transformers and substations including up to 66kV connections.

Separable Connector Type	MV HV Bushing Type	Maximum Voltage	Cross Section Area	Current Rating
Euromold 158LR	Interface A	24kV	16-95sqmm	250Amps
Euromold 400LR	Interface B	36kV	50-185sqmm	400Amps
Euromold 400TB	Interface C Symmetrical	42kV	35-300sqmm	630Amps
Euromold 430TB	Interface C Compact	42kV	35-300sqmm	630Amps
Euromold 440TB	Interface C Symmetrical	42kV	50-630sqmm	630Amps | 1250Amps
Euromold 480TB	Interface C Compact	42kV	35-300sqmm	630Amps | 1250Amps
Euromold 484TB	Interface C Compact	42kV	35-630sqmm	1250Amps
Euromold 676LRA	Interface D	24kV	50-630sqmm	1250Amps
Euromold 787TB	Interface E	42kV	35-630sqmm	800Amps | 1250Amps

11kV 33kV Cable Termination Using Nexans Euromold Interface C Connectors – the Euromold connectors are shown here terminating 11kV single core polymeric cables with copper wire screens and stranded copper conductors (630sqmm)

Brush Transformers

Brush are leading transformer solutions providers for medium/high voltage power networks offering a range of standard or bespoke products for applications including generator step-up, grid connection, system and power transformers.

• System Transformers
• Generator Step Up Transformers
• Grid Connection Transformers
• Power Transformers
• Series Current Limiting Reactors
• Motor Unit Transformers
• Rectifier Transformers

11kV 33kV Cable Terminations

Thorne & Derrick distribute Nexans Cable Terminations for medium and high voltage electrical cable systems, 11kV/33kV – we provide competitive prices for both heat shrink and cold shrink terminations from extensive stocks to UK and international destinations.

Nexans cable terminations are used for connecting 11kV/33kV power cables into MV-HV electrical equipment including switchgear, transformers and substations – heat shrink terminations are available for both single and 3 core polymeric (XLPE EPR) cables.

➡ Read how Thorne & Derrick are now UK Main Distributors for Nexans Power Accessories.

Thorne & Derrick International

Should you require any assistance with the selection or specification of Nexans Euromold products please do not hesitate to contact us.

T&D distribute the most extensive range of MV & HV Cable Joints & Terminations, Cable Installation Accessories & Cable Pulling Equipment – we service UK and international clients working on underground cables, overhead lines, substation earthing and electrical construction at LV, 11kV, 33kV and EHV transmission and distribution voltages.

T&D 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 

• Distributors for: 3M, ABB, Alroc, Band-It, Catu, Cembre, Centriforce, CMP, Elastimold, Ellis Patents, Emtelle, Furse, Lucy Zodion, Nexans Euromold, Pfisterer, Polypipe, Prysmian, Roxtec.

LV – Low Voltage Cable Joints, Glands, Cleats, Lugs & Accessories (1000 Volts)

MV HV – Medium & High Voltage Cable Joints, Terminations & Connectors (11kV 33kV EHV)

Cable Laying – Underground Cable Covers, Ducting, Seals & Cable Pulling Equipment

More…

T&D’s Power Blog covers: LV MV HV & EHV Transmission & Distribution, Substations, Switchgear, Cable Jointing & Termination, Cable Fault & Repair, Underground Cables.

➡ Visit Power Blog.