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Alroc ASCR1 Jointers Tool Used To Remove Bonded Semicon From MV HV Cables

• uploaded by Chris Dodds T&D Sales & Marketing Manager 

The Video kindly contributed by Watkins & Jacomb CPC shows the cable jointer using Alroc tools to effectively strip and remove the bonded semicon screen from the XLPE insulated 11kV cable prior to installing heat shrink cable terminations.

Alroc ASC R1 | ASC R2 Tool

The Alroc ASC cable tool removes the bonded semi-conductor from MV and HV cables and creates a chamfer on the semi-conductor layer to facilitate the installation of joint, termination or connector.

➡ View the complete range of cable jointing tools for the removing of sheath, insulation and semicon screen from medium/high/extra high voltage power cables.

Cable Tools

Video Contributed By: Watkins and Jacomb Construction Power & Consultancy. WJCPC are specialist LV HV Cable Termination & Jointing contractors with over 20 years experience in the High Voltage Electrical Industry covering the utilities, renewable energy, rail, data centre and general industry sectors – UKPN competent for LV & HV Termination and Jointing Of Cables, Confined Spaces, Substation Entry and Cable Fault Finding.

See also  ➡

• HV Cable Terminations – A Report Into 11kV Heat Shrink Termination Failure
• 11kV Triplex Cables Terminated Using Heat Shrink Cable Terminations
• Cutting 11kV Cables Using Cembre Battery Cable Cutting Tools

Thorne & Derrick

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 

MV HV Cables 11kV 33kV – Cable Joints, Terminations & Connections

Rat & Rodent Resistant Cable Duct Seals For LV MV HV Cables & Substations

• by Chris Dodds T&D - estimated reading time 3 minutes

Sealing Ducts

Wildlife induced power outages are increasingly caused by the invasion of rats and rodents into medium/high voltage electricity substations via unsealed and inadequately sealed cable ducts and then gnawing electricity power cables.

Filoform FiloSeal+HD is a duct sealing system that is able to seal large heavy armoured power (multicore XLPE SWA) and high voltage cables in ducts, bore holes or cable transit frames – providing a strong support system using hexagonal tubes building a re-enterable seal with honeycomb structure.

The duct seal system is extensively approved and used by UK utilities, DNO’s and their preferred ICP (Independent Connection Provider) to protect electrical assets and cables within substations typically operating at 11kV, 33kV, 66kV and up to 132kV from rat attack.

The cable duct seal kits have been extensively tested against pressure, pulling forces, chemicals, gases and hydrocarbons for adequate sealing of LV-HV cables against the danger of flood (water ingress) or gas migration.

Recently, testing was carried out to establish the ability of the duct seal system to resist, repel or prevent rat attack through cable ducts into electricity substations and the following post provides information about the test and their conclusions.

TalkTalk suffered a major outage caused by rodent damage to fibre optic cables in 2017.

Sealing Cables & Ducts

Rat & Rodent Testing

Filoform have carried out tests to assess the physical damage caused to the FiloSeal+HD cable sealing sealant by a group of four rats (two males and two females) which are given free access to the duct seal for a period of four weeks.

The FiloSeal+HD comprises of MD+ sealant with hexagonal tubes as the backing product which was positioned within a metal tube.

Each end of the tube was sealed with 25mm of MD+ sealant ensuring that access to the backing product could only be achieved by significant damage to the MD+ sealant.

This tube was mounted in the center of the cage and consequently, the male and female sides of the cage had access to opposite ends of the tube.

Test cage before start of study

Immediately before rats placed in cage – side exposed to males	Immediately before rats placed in cage – side exposed to females
After one week of exposure – side exposed to males	After one week of exposure – side exposed to females
After four weeks of exposure – side exposed to males	After four weeks of exposure – side exposed to females

Duct Seals | Substations

Conclusion

The results at the end of the four week study indicated that there was no apparent difference in the damage caused by the male rats in comparison to the female rats and though the damage increased over the duration of the study the MD+ duct sealant was not penetrated by the rats and the hexagonal backing tubes were not exposed or damaged.

No abnormalities, ill health or behavioural changes occurred to the rats during the study and all four rats achieved satisfactory body weight gain during the exposure period.

Several hard red pieces were observed in the large intestines of one female and in the stomach of one male and one female. There were no other abnormalities observed at the post mortem macroscopic examination at study termination on Day 29.

In conclusion as the hexagonal tubes were not damaged after 4 weeks of exposure with direct access, therefore, it is reasonable to assume that different backing products will be protected to a similar degree, when enclosed by MD+ cable duct sealant.

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.

Armoured Cable Joints | SWA Cables

Cable Joints for LV SWA Armoured Cables

➡ Thorne & Derrick stock and distribute a complete range of Armoured Cable Joints (SWA) in resin cast, cold shrink or heat shrink types for the connection and jointing of multicore and single core XLPE insulated power cables with armour and stranded copper conductors up to 600/1000V – joint kits are available for both AWA (aluminium armoured) and SWA (steel armoured) cables.

Complete supporting range of electrical compression connectors manufactured by Cembre are available and compatible with all types of armoured cable joints.

For further information please visit LV Cable Joints.

Nexans Screened Elbow Terminations (Type C Bushings On 33kV Transformer)

More info: Euromold Screened Separable Connectors

• Application: Type C Bushings On 33kV Transformer
• Contributor: Dave Boyd EHV Cable Jointer – HV Cablepower Pty Ltd
• Featured Manufacturer: Nexans
• Product Type: Type C Bushing Connectors

Nexans Screened Elbow Terminations

Nexans Euromold 480TB type MV separable connectors are used to terminate MV-HV XLPE/EPR (polymeric) insulated cables up to 42kV into Interface C Bushings.

Nexan’s 480TB tee connector with 630A – 1250A current rating is designed for Interface C and covers voltages from 12kV to 42kV with a maximum conductor size of 300sqmm.

Nexans separable connectors are typically used to terminate cables on power systems and circuits distributing MV-HV electricity at 6.6kV, 11kV, 33kV and 66kV according to CENELEC EN50180 and IEEE ANSI – in the site photographs below the 33kV single core cables (185sqmm) with XLPE insulation and copper wire screens are shown prepared and awaiting connection of the Euromold connectors. The copper wire screens are oversleeved with green/yellow insulation and bonded to earth point.

Once installed the high voltage cable terminations were subjected to and passed VLF, Tan Delta and PD tests.

Euromold

The Euromold range of Separable Connectors are suitable for the termination of power cables onto all MV-HV bushing interfaces:

View the complete range of Nexans Terminations | Joints | Connectors

Thorne & Derrick Specialist Electrical Distributor

LV ♦ MV ♦ HV

T&D distribute the most extensive range of LV, MV & HV Cable Jointing, Terminating, Installation & Cable Pulling Equipment – we service UK and international clients working on underground cables, overhead lines, substations 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 Jointing Tools, Feeder Pillars, Cable Ducting, Copper 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

Waveform Cable Termination – 3 Core 300sqmm Cable Onto A 2 Ganged Metered Way In Lucy Cabinet

• Application: Waveform Cable Termination
• Photo by: James Hitchmough Operations Manager at Matrix Networks Limited
  

  by Chris Dodds T&D - estimated reading time 3 minutes   

Lucy LV Distribution Cabinet

Lucy Fused LV Distribution Cabinet

The Lucy Electric AcuLok TMO range of transformer mounted low voltage distribution cabinets incorporates the unique AcuLok fuse handle system – improving reliability and operator safety levels.

The LV cabinet is suitable for outdoor applications or indoor as part of a unit substation, the high equipment specification includes current transformers for load monitoring, a programmable digital meter, integral 660A Veam Powerlock generator sockets and an RCD protected auxiliary socket.

• Multi position attachment option for mechanical cable connectors on fuse stalks
• Individual load-bearing cable cleat per fuse way
• Easily removable fuse stalks for connector attachment
• Complete 3 phase fuse ways are easily removable to allow panel reconfiguration
• Live current measurement per fuse handle facility
• 4, 5 or 6 outgoing fuse ways
• 800A or 1600A busbar ratings
• MCCBs up to 1600A fitted to a chassis assembly
• ACBs up to 2500A directly connected to transformer flange
• 3-phase disconnector handle
• 4-core cable kit

Waveform Cable Accessories

T&D UK distribute an extensive range of low voltage utility waveform power cables including cable joints, cable cleats, cable glands and accessories required to lay and install waveform cables to BS7870.

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 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.