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A European First | Electrical Safety Trainers – Protect Wearers Against Electrical Risks Up To 18kV
April 15th, 2019
Electrical Safety Trainers – Protect Wearers Against Electrical Risks Up To 18kV
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uploaded by - Chris Dodds Thorne & Derrick Sales & Marketing Manager
Electrical Safety Trainers
Rock Fall has developed what it said is the first Electrical Safety Trainer available in Europe.
A multi-award winning second generation family owned business, Rock Fall has positioned itself at the forefront of the electrical safety footwear industry as a leading manufacturer of linesmans boots and dielectric insulating boots to meet the ever-changing demands of the power transmission and distribution industry.
Recognising the strong growth and focus on clean energy and sustainability around the world Rock Fall have developed the first Electrical Safety Trainers available in Europe.
Certified against European and International Electrical Hazard standards the safety trainers are designed to protect wearers against electrical risks up to 18kV in accordance with the ASTM F2412-11 test method.
The range is in stock in the UK and available exclusively from the largest PPE resellers in the UK, including Thorne & Derrick.
The range, which has already been recognised by the industry for Innovation at the recent Professional Clothing Awards is driving quick and significant growth in Australia and New Zealand, with major electrical contractors specifying the products for their electrical operations.
The electrical hazard trainers comply with European and American Standards:
- EN ISO 20345:2011 SB P E FO WRU SRC
- ASTM F 2413-11 1/75 C/75 EH PR

Electrical Hazard Trainer
Speaking about the development, Richard Noon said:
“Electrical risks are increasing as the prominence of hybrid and fully electric vehicles continues to grow. In manufacture, service and at the end of life these vehicles must be handled safely using correctly specified electrical safety equipment.
Electric Vehicles aren’t the only driver for this, as we increase the pressure on our electricity networks, there will be even greater demand for preventative maintenance and work on live lines.
Increased pressure can cause accidents and to have an additional item of PPE to be the last line of defence, in our opinion is critical.
We have seen from the great improvements in Safety Management during the Crossrail project.
With HS2 electrification high on the agenda, from the view of a Electrical Safety Equipment manufacturer it’s important that our industry makes the most of these major infrastructure projects.”
ARC FLASH PROTECTION, CLOTHING & PPE FOR LINESMEN, JOINTERS & UTILITY WORKERS

Coveralls | Helmets | Gloves | Insulating Gloves | Insulating Matting | Electrical Safety Equipment MV HV
LV, MV & HV Jointing, Earthing, Substation & Electrical Eqpt
Thorne & Derrick International are specialist distributors of LV, MV & HV Cable Installation, Jointing, Duct Sealing, Substation & Electrical Equipment – servicing UK and global businesses involved in cable installations, cable jointing, substation, overhead line and electrical construction at LV, 11kV, 33kV and EHV.
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
Electrical Safety Footwear – Cable Jointers & Linesmens Boots | WPD Case Study
April 15th, 2019
Electrical Safety Footwear – Jointers & Linesmens Boots
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uploaded by - Chris Dodds Thorne & Derrick Sales & Marketing Manager
WPD’s Safety Footwear Solution
Electrical Safety Equipment LV MV HV
Western Power Distribution are the electricity distribution network operator for the Midlands, South West and Wales. They deliver electricity to over 7.8 million customers over a 55,500 square kilometres service area. A network which consists of 220,000 km of overhead lines and underground cables, and 185,000 substations resulting in the employment of over 6,500 staff.
Rock Fall design and develop electrical hazard linesmens boots and shoes to impede the flow of LV MV HV electricity through the shoe and to the ground reducing the likelihood of electrocution, in accordance with ASTM F2413-11.
Below is a case study of how Rock Fall and Western Power Distribution have achieved an electrical safety footwear solution meeting all the necessary standards.
The problem
WPD felt they had a few problems with their electrical safety footwear solution. These included:
- Missing specification
- High costs
- Requirement for bespoke design choices
The story
Western Power Distribution approached Rock Fall to develop a range of styles to protect them from the electrical risks that they face. WPD were fully aware that these styles are designed as secondary protective equipment for use in addition to other electrical hazard protection equipment i.e. insulating gloves. Key features of these electrical safety products are:
- Certified to 18kV protection in accordance with ASTM F2413-11
- Waterproof tested for 100 hours
- New design features including yellow collar and lacing and new outsole mould compatible with climbing irons
Rock Fall supplied wearer trials to several operatives across a variety of business units.
The trialled products were:

Rock Fall RF800 & RF900 certified to ASTM F2413-11 as well as EN ISO 20345:2011
Rock Fall RF800 PowerMax Linesmen Boots
- EN ISO 20345:2011 SB P CI E FO WRU WR SRC.
- ASTM F 2413-11 I/75 C/75 EH PR.
- AS/NZS 2210.3:2009 SB P CI E FO WRU HRO WR SRC.
Rock Fall RF900 Power Linesmen Boots
- EN ISO 20345:2011 SB P CI E FO WRU WR SRC.
- ASTM F 2413-11 I/75 C/75 EH PR.
- AS/NZS 2210.3:2009 SB P CI E FO WRU HRO WR SRC.
This gave them 2 highly durable products that are designed for both Linesmen and Jointers.
Rock Fall brought together a range of advanced components used in their existing market leading products. Including:
- FORCE10® Scuff Cap and Brand New Outsole – tested to extraordinary performance levels
- R-TEN™ Abrasion Resistant Thread – Chemically inert and highly abrasion resistant
- Ortholite® Climate breathable footbed – reduces foot swelling and provides anti-fatigue and moisture wicking properties
- IMPACT SHIELD™ Internal Digging Plate – reduces impact into the under-foot and increases stability
Finally, Rock Fall have added a yellow collar, meaning that wearers can be identified to be wearing the correct EH Footwear from a distance by Health and Safety and Site Managers.

Linesmens Boots
solution
Following a diligent trial and development process the RF800 PowerMax and RF900 Power were specified on the Western Power Distribution safety footwear tender that took place during Q4 of 2017.
The linesmen boots are on the ground and wearer feedback is continually being monitored.
Matthew Noon, Director at Rock Fall and Lucine Evans, Safety Advisor at Western Power Distribution worked together on the project.
Matthew said “We are thrilled to have had the opportunity to work with Western Power Distribution on such an important project for both them, and the industry. Rock Fall has positioned itself as the go to manufacturer for end-users when they need something brand new. Working with WPD has been a pleasure from start to finish and we are proud of the results.”
Lucine said “As a business we had been waiting for an electrical hazard boot which was CE marked to come on to the market, so we were more than happy to work with Rock Fall on the development of these work boots. Throughout the process Rock Fall have listened to our feedback and the result is two styles of work boot that are fit for purpose, comfortable, robust and meet WPD’s minimum standards for footwear.”
Rock Fall are eager for ongoing user feedback so their electrical hazard footwear and dielectric boots can be reviewed to ensure the continual performance and value for money is achieved.
ARC FLASH PROTECTION, CLOTHING & PPE FOR LINESMEN, JOINTERS & UTILITY WORKERS

Coveralls | Helmets | Gloves | Insulating Gloves | Insulating Matting | Electrical Safety Equipment MV HV
LV, MV & HV Jointing, Earthing, Substation & Electrical Eqpt
Thorne & Derrick International are specialist distributors of LV, MV & HV Cable Installation, Jointing, Duct Sealing, Substation & Electrical Equipment – servicing UK and global businesses involved in cable installations, cable jointing, substation, overhead line and electrical construction at LV, 11kV, 33kV and EHV.
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
Consac Cable Jointing & Tooling
April 11th, 2019
Boddigtons Cable Jointing Tools
LV Cable Jointing & Terminating
Boddingtons 936 cable tools are designed to cut the aluminium sheath on consac cable to facilitate cable jointing and cable terminating.
The consac cable jointing tools provides safe and accurate cutting of the sheath without the risk of cutting the live inner conductor – exact cutting depths are achieved when using the different size cutting wheels.
Consac cable joints must only be installed by Trained & Competent Jointers using the approved and correct Consac cable jointing tools.
Jointing tools manufactured by Boddingtons are in widespread service throughout the electrical power industry – cable preparation and cable jointers tools are available for use on LV MV HV cables (XLPE, PILC, EPR insulated), waveform, consac, Triplex and utility power cables up to 33kV.
Boddingtons Electrical
Consac Cable Jointing Tools
Features
- “T” handle is available to assist the operation of the tool
- Consac Sheath Punch is available in two sizes – Ø 7 or 10 mm
- Complete sheath cutting kit in plastic case available on request
- Insulated Sheath Lifters, two types available – all plastic or coated metal
- Insulating Shrouding kit available
1. Boddingtons Electrical Consac Sheath Cutter MK3 – Ø 23.4 – 32.7mm

2. Boddingtons Electrical Consac Sheath Cutter MK4 Ø 32.7 – 45.3mm

3. Boddingtons Electrical Consac Hole Punch 7mm / 10mm

4. Boddingtons Electrical Insulated Consac Sheath Lifter (metal)

5. Boddingtons Electrical Insulated Consac Sheath Lifter (all plastic)

Boddingtons Electrical Consac Sheath Cutting Tool
Technical Data
| Part Number | Description | Weight |
| Boddingtons 936-MK3 | Consac Sheath Cutter MK3 – Ø 23.4 – 32.7mm | 1900g |
| Boddingtons 936-MK4 | Consac Sheath Cutter MK4 – Ø 32.7 – 45.3mm | 2000g |
| Boddingtons 936-AK | Allen Key for MK3/MK4 Cutter | 10g |
| Boddingtons 936-TB | T-bar for MK3/MK4 Cutter | 160g |
| Boddingtons 936-WP | Spare wheel pin for MK3/MK4 Cutter | 30g |
| Boddingtons 936-PPMK3 | Spare set of plastic pads (2) for MK3 Cutter | 35g |
| Boddingtons 936-PPMK4 | Spare set of plastic pads (2) for MK4 Cutter | 35g |
| Boddingtons CS90/DB76 | Plastic case to hold MK3 sheath cutter and accessories | 700g |
| Boddingtons 936-HP7 | Consac Hole Punch 7mm | 700g |
| Boddingtons 936-HPI0 | Consac Hole Punch 10mm | 700g |
| Boddingtons 103107 | Insulated Consac Sheath Lifter (metal) | 350g |
| Boddingtons 103108 | Insulated Consac Sheath Lifter (all plastic) | 50g |
IET Forum Post, April 2010
On the British Standards website, BS5593:1978 Specification for impregnated paper-insulated cables with aluminium sheath/neutral conductor and three shaped aluminium phase conductors (CONSAC), 600/1000V for electricity supply was withdrawn by BSI British Standards on 15.12.96.
Waveform – A method of layering wires to form a neutral conductor used in low voltage polymeric insulated mains cables. This is also covered by the following BSI British Standard : BS 7870-3.40:2001 – LV and MV polymeric insulated cables for use by distribution and generation utilities. Specification for distribution cables of rated voltage 0.6/1 kV. XLPE insulated, copper wire waveform concentric cables with solid aluminium conductors
LV Cable Joints (Low Voltage Cables)
Thorne & Derrick stock and distribute LV Joints in Cold Shrink, Heat Shrink or Resin Cast technologies – multicore and multi-pair cable joints are available for immediate backfill and energisation of Low Voltage power, control and instrumentation cables 600V/1000V 3.3kV.
Complete range of LV Cable Accessories ➡
Cable Breakouts | Cable Caps | Cable Lugs | Cable Cleats | Cable Trough | Cable Duct | Feeder Pillars | for 11kV/33kV/66kV networks see MV HV Joints & Terminations

Pfisterer | Nexans Euromold | Prysmian | Cable Joints & Terminations MV HV

Cold Shrink by 3M | Joints | Abandonment | Terminations | Low Voltage LV Cables
VIDEO How To Verify Total Absence of Voltage By The Push Of a Button
April 11th, 2019
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Guest Article by Glen Bate (Panduit Account Manager)
VeriSafe voltage tester
When servicing LV MV HV electrical equipment, workers must comply with safety regulations that require a voltage verification test to validate the absence of voltage.
This process requires strict adherence to prevent accidents and bodily injury, but includes many stages that can be complex and time-consuming when using hand-held portable test instruments.
This paper examines the costs and limitations involved with using a manual absence of voltage tester. It also describes a new technology for the factory floor that automates the process, reducing time, complexity, and costs.
VeriSafeTM by Panduit is the first-of-its-kind voltage tester that determines the absence of voltage with just a push of a button. This revolutionary 2018 NFPA 70E compliant product automates the required six-step testing process in about ten seconds, enabling your plant to operate faster, safer, and more efficiently.
Simplify electrical safety with the superior technology of VeriSafe.
Historical Costs of Checking for Absence of Voltage
Numerous studies exist pertaining to injuries resulting from electric shock and arc flash events. These studies recognise that establishing the economic payoffs of prevention is a critical factor in promoting workplace safety. Besides personal injury, the costs of property and equipment damage need to be considered.
Although estimates vary, studies have shown that the average direct cost of an electrical injury ranges from about US $50,000 to US $80,000′, while the indirect cost can exceed the direct cost by a factor of nearly four2. Direct costs include lost wages or workers’ compensation payments, medical expenditures, and legal expenses.
Indirect costs include:
- wages paid during work stoppage
- administrative costs related to injury
- property damage and repair
- training and compensation for replacement workers
- lost productivity with less experienced workers
- fines related to workplace safety violations
- potential increase in absenteeism
- decrease in morale
Electrical injuries have one of the highest average workers’ compensation costs, second only to motor vehicle accidents3.
Injuries from contact with exposed wiring, transformers, or other electrical components frequently occur in the workplace and involve construction, installation, maintenance, and repair workers. These injuries are often costly and serious, as demonstrated by the number of days away from work; 51% of workers missed over one week of work due to these injuries, with 40% missing two weeks or more4.5.
Limitations of Using a Handheld Voltage Tester
Verifying the absence of voltage is part of the process to establish an electrically safe work condition. Step 5 of NFPA 70E-2015 Article 120.56 describes this process:
Use an adequately rated test instrument to test each phase conductor or circuit part to verify it is de-energized. Test each phase conductor or circuit part both phase-to-phase and phase-to-ground. Before and after each test, determine that the test instrument is operating satisfactorily through verification on a known voltage source.
This process usually involves a portable, hand-held voltage test instrument. To be effective, it is critical to perform each step of the process in sequence, and it requires taking the necessary precautions, such as the proper use of personal protective equipment (PPE) (Figure 1).
Competent & Authorised Persons
Note Panduit recommend that VeriSafe should be used by competent and authorised people. As VeriSafe is a new and innovative solution to make the Absence of Voltage Testing, we recommend that the people who will use this device, have to be trained in order to understand how it works and how to use it properly.
Please be aware that with this product there is no risk of having hazardous voltage on the indicator module and on the door, as they are isolated from the main power by the isolation module which is located inside the panel. This means that there is less than 5 volts (just enough to power the LEDs on the indicator) present at the device located on the door and used to launch the test procedure.

Figure 1. Absence of Voltage Test Using Handheld Voltage Test Instrument

VeriSafe – Request a Demo
Complexity
Adhering to this process prevents electrical injuries, but the process is complex and time consuming. Portable instruments are susceptible to mechanical and electrical failure and misuse by the person using the device. In addition, because the process of using a hand-held tester is dependent on human input, interaction, and interpretation, it is vulnerable to mistakes and errors.
Training Costs
Training on the selection, maintenance, and use of test instruments is crucial as are systems for inspecting and maintaining voltage test instruments. However, training and maintaining the test equipment incur the additional expenses of time and cost.

The Risks of Voltage Testing

Portable Handheld Voltage Detector in Action
Electrical Safety

Traditional Method – Determining absence of voltage with handhled testers presents a risk of exposure to electrical hazards
A disadvantage of implementing a voltage verification test with a hand-held tester is that the person performing it may be exposed to electrical hazards while verifying that the tester is working prior to and after the test, and during the test if the equipment was not de-energized.
With such a significant emphasis on performing work only on de-energized equipment, it is ironic that best practice relies on PPE and exposure to hazards before de-energized work begins. The need for PPE is a significant contributor to the overall time to carry out this process because the worker must first determine the required PPE, then obtain, inspect, dress, and properly store it after use. Additionally, PPE can be misused or not used at all, especially when there are time constraints.
When processes are overly complex or time-consuming, workers tend to become complacent and develop shortcuts as practices become routine. A normalization of deviance—small, gradual deviations from an established practice—may occur over time. With the lack of negative consequences, the lower standard eventually becomes the norm”.
Even when hazards are part of the everyday routine, deviations from a safety procedure can slowly become accepted practice. These deviations are particularly evident when there are time pressures, which is often the case when electrical maintenance causes unplanned or excessive downtime. If either training or enforcement of administrative procedures is lacking, the effectiveness of the procedures will diminish.
A More Efficient Way to Test for Voltage VeriSafeTM Absence of Voltage Tester (AVT)

VeriSafe AVT – Prevents direct exposure to electrical hazards and determines voltage status before equipment is accessed
The VeriSafeTM AVT automates the voltage verification process and is the first AVT tailored for electrical enclosures (Figure 2). By automating this process, the VeriSafeTM AVT features the following:
- Tests without exposure to harmful voltages/currents
- Self-contained; no additional meters or tools are needed
- Built-in pre-/post-verification test
- Tests phase-to-phase and phase-to-ground
- Automated test sequence
- Active indication for absence of voltage
- Supports compliance with NFPA 70E-2018 Article 120.5
- Rated safety integrity level (SIL) 3 per IEC 61508
The VeriSafeTM AVT is applicable for several applications:
- Equipment with a single source of incoming power
- High risk associated with access
- Equipment with high incident energy
- Remote or difficult to access locations — Outdoor, mezzanine, catwalk
- Sites with temporary or intermittent power
- Equipment with stored electrical energy — VFDs, capacitors, etc.
- Equipment frequently serviced by third-party technicians or contractors

Figure 2 VeriSafe AVT
NFPA 70E
One of the major changes to the 2018 edition of NFPA 70E involves the new requirements that allow an installed AVT to be used instead of a hand-held voltage tester. When the VeriSafe– AVT is used in conjunction with a Lockout/Tagout Program, it meets the requirements for the process described in NFPA 70E-2018 Article 120.5:
Exception No. 1: An adequately rated permanently mounted test device shall be permitted to be used to verify the absence of voltage of the conductors or circuit parts at the work location, provided it meets the following requirements:
- It is permanently mounted and installed in accordance with the manufacturer’s instructions and tests the conductors and circuit parts at the point of work
- It is listed and labeled to verify the absence of voltage
- It tests each phase conductor or circuit part both phase-to-phase and phase-to-ground
- The test device is verified as operating satisfactorily on any known voltage source before and after verifying the absence of voltage

Figure 3 Comparison of the VeriSafe AVT and Portable Device Testing Methods
VeriSafe AVT – The Safe, Efficient, Accurate Way to Verify
Integrating the VeriSafe™ AVT is a vital improvement to absence of voltage testing. A solid testing method helps create a reliable, safe, cost-effective system that workers can use as needed. The VeriSafe™ AVT verifies the absence of voltage before equipment is accessed, making it easier for qualified electrical workers to determine an electrically safe environment in a fraction of the time required by hand-held portable test instruments.

VeriSafe AVT – Verification Steps

VeriSafe AVT – Safe, Efficeint & Accurate Way To Detect Voltage

VeriSafe Award Winning Panduit Product
- B. Campbell and D. A. Dini, Occupational Injuries from Electrical Shock and Arc Flash Events. Quincy, MA: Fire Protection Research Foundation, 2015.
- F. A. Manuele, “Accident costs: Rethinking ratios of indirect to direct costs,” Prof. Safety, pp. 39-47, Jan. 2011.
- I. B. Horwitz and B. P. McCall, An epidemiological and risk analysis of Virginia workers’ compensation burn claims 1999 to 2002: Identifying and prioritizing preventative workplace interventions,’ Occup. Environ. Med., vol. 49, no. 12, pp. 1376-1385. 2007.
- Bureau of Labor Statistics. Injuries, illnesses, and fatalities. [Online]. Available: http://www.bls.gov/iif/data.htm
- U.S. Department of Labor. Bureau of Labor Statistics census of fatal occupational injuries. [Online]. Available: http://www.bls.gov/iif/oshcfoi1 .htm
- Standard for Electrical Safety in the Workplace 2015 Edition, NFPA 70E, 2015.
- L. Floyd and B. J. Nenninger, Personnel Safety and Plant Reliability Considerations in the Selection and Use of Voltage Test Instruments: IEEE Transactions on Industry Applications, vol. 33, no. 2, pp 367-373, 1997.
- A. Johnson. (2011- Nov. U. Not an easy task. Safety+ Health. [Online]. Available: http://www.safetyandhealthmagazine.com/articles/not-an-easytask-2
- ‘J. Wettstein. (2013, Oct. 241. When safety shortcuts become the norm. [Online]. Available: http://www.safetyrisk.net/when-safety-shortcutsbecome-the-norm/
- “Only AVTs listed to UL 1436 as an AVT meet this requirement.

VeriSafe – Request a Demo
Thorne & Derrick International, based in the UK, are Official Distributors for the Panduit range of cable ties for industrial and hazardous area management of data, telecoms, control, instrumentation and power LV MV HV cables in industrial and hazardous area industries including oil/gas, petrochemical, rail, renewable, construction and mining/quarrying industries – this includes stainless steel cable ties used to clamp and cleat cables located in medium/high voltage MV HV onshore and offshore substations.

132kV 33kV 11kV DNO Substations – A Guide To Cable Sealing By Roxtec
April 9th, 2019
132kV 33kV 11kV DNO Substations
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uploaded by Chris Dodds - Sales & Marketing Manager Thorne & Derrick International
A Guide To Cable Sealing By Roxtec
Thorne & Derrick are distributors for Roxtec, the leading manufacturer of sealing solutions for cables and pipes, to protect electricity Transmission & Distribution assets including substations against the potential catastrophic effects water, gas and fire.
The following article discusses Roxtec cable transit products for the sealing of HV single core power cables, multicore cables and earthing arrangements into a substation environment either below ground or at a higher level.
The primary consideration of this specification is to prevent water ingress into the controlled switchroom environment, to assist in maintaining conditions within switchgear operational parameters in accordance with manufacturer’s guidelines and IEC62271-1 2007 / BSEN62271- 1 2008.
This specification also provides protection against pollution from dust, smoke, corrosive and/or flammable gases, vapours and salt in accordance with the same, reducing the potential for equipment failure due to partial discharge.
The Roxtec system also provide a means of secure cable retention under normal loads and fault conditions and/or where the exterior of the building is subject to ground settlement post back-filling of the cable trench. Cable transits also provide ingress protection in both normal and flood conditions and can be installed in running water.
Cable Sealing Technical Performance & Product Overview
Roxtec Knock Out Sleeve UG (KOS)
- Used for formation of 100mm, 150mm and 200mm cable ducts – see casting guidelines for additional information
- Complete sealing solution comprising of a sleeve with an external puddle flange and integrated sealing plate – keeps building dry during and after construction
- Cast installation for either new build or retrofit substation applications
- IP68 tested and certified to 0.3bar constant water pressure and 1bar catastrophic water pressure. Gas tight to 0.3bar

Roxtec Knock Out Sleeve UG (KOS)
| Roxtec Part Number | W (mm) | Accommodates Seal | Accommodates Extension Conduit/ Duct (mm) | Roxtec Article N° |
| KOS 100/110 UG | 180 | R 100 UG RS 100 UG |
110 | 184064 |
| KOS 150/160 UG | 230 | R 150 UG RS 150 UG H3 150 UG |
160 | 184066 |
| KOS 200/200 UG | 280 | R 200 UG H3 200 UG |
200 | 184068 |
Roxtec UG Rubber Seals
- Tested and certified to IP68 for constant water pressure to 0.3bar (3m head of water normal conditions) and catastrophic pressure to 1bar (10m head of water flood conditions). Gas tight to 0.3bar
- Certified rodent / vermin ingress protection
- Cable seals can be installed in running water conditions & retrofit around existing cable installations
- Fittings manufactured from 316L stainless steel. Minimum clearance of 3mm between rubber and metal fittings to prevent direct contact between the cable and any metal components
- Minimum seal depth 60mm to aid with cable retention. Preventing loss of seal when; movement occurs on the cable due to ground settlement post backfill, the weight of the cables and the flex during operation
- Cable retention with a pull force of up to 10,000N and a weight load of up to 1,000kg, depending on size / seal selection
Roxtec RS UG Seal
These cable transits manufactured from Roxylon EPDM rubber with Multi-diameter peelable layers at 1mm increments are designed to seal a single LV MV HV cable between 9-204mm Ø. The unique indicator window allows for a simple check that the Roxtec cable seal has been sufficiently tightened. Fully openable/split system allowing for easier installation / cable positioning.

Roxtec RS UG Seal
| Roxtec Part Number | Number of Cables | For Cable / Pipe Ø (mm) | For Aperture Dimension Ø (mm) | Roxtec Article N° |
| RS 100 UG | 1 | 0+39-63 | 100-105 | 167236 |
| RS 100 24-53 UG | 1 | 0+24-53 | 100-105 | 186250 |
| RS 125 | 1 | 0+55-88 | 125-130 | 167638 |
| RS 150 UG woc | 1 | 80-113 | 150-155 | 167246 |
Roxtec H3 UG Seal
These Roxtec H3 cable transits are manufactured from Roxylon EPDM rubber with Multi-diameter peelable layers at 1mm increments designed for use with HV single core cables between 23-68mm Ø in a trefoil formation. The unique indicator window allows for a simple check that the seal has been sufficiently tightened. Fully openable/split system allowing for easier installation / cable positioning.

Roxtec H3 UG Seal
➡ For further reading Roxtec H3 Cable Transit Seals – How To Seal Substation Cables
| Roxtec Part Number | Number of Cables | For Cable / Pipe Ø (mm) | For Aperture Dimension Ø (mm) | Roxtec Article N° |
| H3 150 UG | 3 | 24-52 | 150-155 | 151561 |
| H3 185 UG | 3 | 48-64 | 185-190 | 126283 |
| H3 200 UG | 3 | 48-68 | 200-205 | 117842 |
Roxtec R UG Seal
Designed for entries with multiple LV / Multicore cables, includings control / comms and aux cables. An openable/split round seal used in conjunction with Roxtec RM UG modules.

Roxtec R UG Seal
| Roxtec Part Number | Module Packing Space (mm) | For Cable / Pipe Ø (mm) | For Aperture Dimension Ø (mm) | Roxtec Article N° |
| R 100 UG | 60 x 60 | Refer to Module Packing Space & Multi diameter Sealing Range of RM UG Modules | 100-102 | 158522 |
| R 150 UG | 90 x 90 | 150-152 | 150071 | |
| R 200 UG | 120 x 120 | 200-202 | 150075 |
Roxtec RM UG Modules
Roxtec RM UG sealing modules feature Multi diameter, the Roxtec technology with removable layers so that they can easily be adapted to a wide range of cable sizes. The Roxtec RM UG sealing module is developed to be installed in the Roxtec R UG Seal.

Roxtec RM UG Modules
| Roxtec Part Number | Number of Cables | For Cable / Pipe Ø (mm) | Module Packing Space Dims (mm) |
Roxtec Article N° |
| RM 30 UG | 1 | 0+10-23.5 | 30 x 30 | 116837 |
| RM 40 UG | 1 | 0+9.5-31 | 40 x 40 | 116865 |
| RM 60 UG | 1 | 0+24-52 | 60 x 60 | 116869 |
| RM 90 UG | 1 | 0+48-68 | 90 x 90 | 174930 |
| RM 20 UG | 1 | 0+4-13 | 20 x 20 | 116871 |
| RM 20w40 UG | 2 | 0+2×4-13 | 20 x 40 | 116870 |
Earthing Arrangements
Flat earth tapes can be sealed using a Roxtec R Seal (AISI 316L) and a water jet cut module in Roxylon EPDM rubber. Note that the Roxtec UGTM pipe or cable sealing system is not suitable for use with braided / twisted earth rope. Solid circular earth bar can be sealed using the standard Roxtec RM modules.

Earthing Arrangements
| Roxtec Part Number | Packing Space / Module Dims (mm) | Earth Tape / Cable Dims Ø (mm) | For Aperture Dimension Ø (mm) | Roxtec Article N° |
| Seals: | ||||
| R 100 AISI 316L | 60 x 60 | 100-102 | R000001001021 | |
| R 125 AISI 316L | 80 x 80 | 125-127 | R000001251021 | |
| R 150 AISI 316L | 90 x 90 | 150-152 | R000001501021 | |
| R 200 AISI 316L | 120 x 120 | 200-202 | R000002001021 | |
| Earth Tape Modules: | ||||
| RM 60/SQ40x4 | 60 x 60 ET Module | 40×4 Copper Tape | 118418 | |
| RM 60/SQ50x6 | 60 x 60 ET Module | 50×6 Copper Tape | 118438 | |
| RM 60/SQ50x4 | 60 x 60 ET Module | 50×4 Copper Tape | 107067 | |
| RM 20w60/31×6 | 20 x 60 ET Module | 31×6 Copper Tape | 189962 | |
| RM 20w60/40×4 | 20 x 60 ET Module | 40×4 Copper Tape | 172809 | |
| RM Customised | Customised | Customised Copper Tape | Contact Roxtec | |
| RM Modules/Cable Packing Space: | ||||
| RM 30 | 30 x 30 Module | 0+10-23.5 | RM00100301000 | |
| RM 40 | 40 x 40 Module | 0+21.5-34.5 | RM00100401000 | |
| RM 60 | 60 x 60 Module | 0+28-54 | RM00100601000 | |
| RM 20 | 20 x 20 Module | 0+4-14.5 | RM00100201000 | |
| RM 20w40 | 20 x 40 Module | 0+2×3.5-16.5 | RM00120401000 | |
| RM40 (10-32) | 40 x 40 Module | 0+9.5-32.5 | RM00140101000 | |
IEC62271-1 2007
High-Voltage Switchgear& Controlgear – Part 1: Common Specifications
Note this standard is now withdrawn and superseded by IEC 62271-1:2017 (High-voltage Switchgear & Controlgear – Part 1: Common Specifications for Alternating Current Switchgear & Controlgear). This part of IEC 62271 applies to a.c. switchgear and controlgear designed for indoor and outdoor installation and for operation at service frequencies up to and including 60 Hz on systems having voltages above 1000 V.
This standard applies to all high-voltage switchgear and controlgear except as otherwise specified in the relevant IEC standards for the particular type of switchgear and controlgear. This standard cancels and replaces IEC 60694 published in 1996.
Bespoke Solutions
Contact T&D and together with Roxtec we can discuss design services for seals and customised sealing solutions which fall outside the standard range.
Manufacturing / Quality Approvals
- ISO 9001:2008 ISO 14001:2004 certified
- Seals tested and certified to IP68
- Certified rodent / vermin ingress protection
- Complies with recommendations outlined in EA Technology white paper – Humidity Effects in Substations – 2013
Thorne & Derrick Specialist Electrical Distributor
Established since 1985, T&D distribute the most extensive range of LV, MV & HV Cable Jointing, Terminating, Pulling & Installation Equipment – contact us today for a competitive quotation.
Key Products : MV Joints & Terminations, Cable Cleats, Duct Seals, Cable Transits, Underground Cable Protection, Jointing Tools, Feeder Pillars, Cable Duct, Earthing & Lightning Protection, Electrical Safety, Cable Glands, Arc Flash Clothing Protection & Fusegear.
Distributors for : 3M, Pfisterer CONNEX, Nexans Euromold, Elastimold, Catu, Roxtec, Emtelle, Centriforce, Lucy Zodion, Alroc, Hivotec, Cembre, Prysmian, Ellis Patents, ABB & Furse.

T&D Providers Of Jointer Training Courses By Pfisterer CONNEX & Nexans Euromold
