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PFISTERER Connex | Separable Connectors Specification Guide for Medium Voltage Electrical Systems

PFISTERER Connex | Stocked & Distributed in the UK by Thorne & Derrick

The following guide is designed to help with the specification of PFISTERER CONNEX Separable Connectors size 0 – 3/3-S. You can access the form using the link below.

Specification Form 

PFISTERER Connex Separable Connectors

Thorne & Derrick provide competitive prices and fast delivery from stock for the complete range of LV MV HV Power Products manufactured by Pfisterer – this includes Pfisterer CONNEX MV HV cable plugs and terminations.

The application, cable and MV-CONNEX Separable Connector need to be matched.

Only adapted connectors can achieve the required reliability in the grid.

For cables according to DIN VDE standard, a simplified selection process is possible.

See the beginning of “Section B”.

For cables that have not been produced to comply with DIN VDE, a product configurator is used to determine an individual article number for the required MV-CONNEX Separable Connectors size 0-3/3-S. In order to be able to define the article number, the Specification Form for MV-CONNEX Separable Connectors must be completely filled-in by the project specialists of the customer.

The individual article number consists of a 9-digit number plus an optional variant code. This article number contains all parts for connecting and earthing the individual cable. This article number is marked as Set – which means 3 pieces of the same connector.

Please find instructions below, which will help to correctly fill in the CONNEX Specification form.

The parameters needed can be separated into two groups:

A. Application specific parameters

B. Cable specific parameters

Please complete section ‘A’ and ‘B’.

Section A: Application specific parameters

GIS/Trafo Socket

The cable connector and the socket have to be the same size. The electrical parameters and dimensional measures are defined in the standards EN 50180 and EN 50181.

The following details might help you:

• size 0: lᴺ=250A;  Uᵐ=24kV
• size 1: lᴺ=630A;  Uᵐ=36kV
• size 2: lᴺ=800A;  Uᵐ=42kV
• size 3: lᴺ=1250A;  Uᵐ=42kV
• size 3-S: lᴺ=1250A;  Uᵐ=52kV

It is important to know the size of the socket of which is installed in the switchgear or the transformer.

Application

Depending on the application some special materials and/or additional components are needed.

For application “offshore” or for application “soil-resistant”, special material for housing and sealing is provided.

The section”offshore” should also be ticked if the application is in a coastal area where there is a saline/corrosive atmosphere. Soil-resistant is used if the cable connector itself is underground.

Lowest Ambient Temperature

The standard ambient temperature range is from +50ºC down to -25ºC. For applications where the ambient temperature goes down to -45ºC a special low temperature grease is needed. The temperature directly around the Separable Cable Connector is relevant.

Please note that for indoor application the decisive factor is the ambient temperature inside the building.

Connector Plug-in Location

Only for single sockets installed from inside of the equipment (not relevant for transformer elbow bushing or cast resin joints).

If the application is “outdor” and if the socket entry is from the top, an additional sealing system has to be applied. This is needed to prevent rain/water from entering the connector.

Therefore, please indicate if the position of installation is “top entry” or “other” (not top entry).

Voltage Tap

The voltage tap serves as an interface for a continuous voltage indicator system (DSA-LRM, DSA-2, DSA-i3). This is used to ensure the absence of voltage in the cable system before working on the cable system. For the indication of voltage, a separate product is needed (not in the scope of supply of the connector). To connect this voltage indicator system, the voltage tap (additional components) has to be included in the connector kit. Please indicate “yes” if needed.

standard is “no”

Section B: Cable specific parameters

For cables according to DIN VDE standard, a simplified process is possible. To select the connector, only “cable type”, “cross section”, “voltage level” and “section A” are required.

The simplified process is valid for the following cable types:

In case of non-DIN VE cables, please indicate all the cable parameters.

Cable Design

Single core cable or three core cable.

A three core cable only has to be indicated if the accessories for cable break out have to be included in the cable kit. If those accessories are not needed as they are e.g. already supplied in scope of project, single core cable can be selected (please indicate cable screen and armouring only for the single core cable).

Voltage Level

Voltage level of the cable

U⁰ = phase to earth voltage

Uⁿ = nominal voltage; phase to phase voltage

Uᵐ  max. operating voltage (2 x U⁰)

Common voltage levels as reference:

Conductor Cross Section

Cross Section is only a reference value and does not influence component selection.

Conductor Diameter & Type

The contact system consists of several components. The components are selected according to the conductor type and the diameter of the conductor. The diameter of the bare conductor is relevant (without semi-con conductor screen).

The components have a designed working tolerance in which the can be used. During cable preparation and connector assembly, the conductor diameter has to be within this tolerance, for the contact system components to fit properly.

Conductor types (IEC 60228):

RM: stranded circular (class 2)

SM: stranded sector

RE: solid circular (class 1)

SE: solid sector

RF: super-flexible stranded (class 5+6)

The standard is RM stranded circular (class 2).

Insulation Diameter

The insulation diameter defines the correct insulating part of the connector. The diameter of the bare insulation (without semi-con insulation screen) is required.

The insulating parts have a designed working tolerance in which they can be used. During cable preparation and connector assembly the insulation diameter has to be within this tolerance, for the insulating part to fit properly.

Semi-Conductive Insulation Screen

Depending on the semi-conductive screen type and layer thickness, a special assembly method with special components is used.

• Fully Bonded: The semi-con insulation screen is removed with a cable peeling tool. Standard for DIN VDE cables. Standard thickness is ≤ 1mm; in case thickness is ≥ 1mm please indicate the thickness of semi-con layer.
• Easy Strip: The semi-conductive insulation screen can be removed without a cable peeling tool.
• Graphite: The cable has a layer of graphite on the insulation. This could be the case with older cables, but is not common with new cables.
• Without Semi-conductive Layer: if a low voltage cable or a medium voltage cable with only 2 kV voltage level is used the insulation could be without semi-con insulation screen.

The standard is fully bonded, thickness ≤ 1mm.

Cable Screen

Depending on the cable deign the cable core could have one or more metallic layers. If these metallic layers are indicated on the specification form (Cable screen, 1st and 2nd armoring) corresponding accessories to connect and to ground these layers are supplied.

Diameter values are over each metallic layer.

The standard is: cable screen = Cu wire screen, without 1st and without 2nd armouring.

• Wire: made from Cu or Al
• Laminated foil ( ≤ 0,1 mm): made from Cu or Al
• Tape: made from Cu or Al
• Lead Sheath: made from Pb
• Corrugated Sheath: made from Cu or Al
• Wire Mesh: made from Cu

If your cable had another special cable screen, please indicate this on the form, e.g. fibre optics or up to 3 separate earthing leads (3 core cables).

Outer Cable Jacket

Diameter of the complete cable. For cables with very big or very small diameters, a special assembly method with special components is applied.

PFISTERER

The Pfisterer corporate group has been dealing with the interfaces in the flow of electricity ever since it was founded back in 1921.

As a specialist in energy transmission and distribution, Pfisterer offer our customers and business partners a range of sophisticated, future-ready products: For all voltage ranges and wherever reliable, long-lasting systems are needed for powerful energy grids.

As well as the energy sector, they are also active in transport technology and industrial solutions.

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 

Electric Vehicle Charging Supply Feeder Pillars | EV Feeder Pillars

EV Charging Feeder Pillars

EV Feeder Pillars

EV Charging

Lucy Zodion manufacture a wide range of products suitable to provide Low Voltage Electrical Power Distribution for EV charge points – from distribution network operator (DNO) accredited cut-outs and isolators for on-street chargers, to feeder pillars for electrical vehicle charging.

Meet the increasing demand for accessible EV charging points with power distribution solutions that connect DNO supply with charging outlets. Lucy Zodion’s adaptive and reliable supply solutions consider the charge speeds and times each EV charge point is capable of, from fast to super, to ensure you receive the most suitable and compatible option.

As one of the UK’s leading suppliers of pre-wired power distribution enclosures, Lucy Zodion have developed a standard range of pillars that will support EV charge point requirements that fall into the four categories of main current rating: 100 Amp, 200 Amp, 400 Amp and 630 Amp, providing a link between the DNO and EV charge points. The configuration of all EV feeder pillars in this range can be upgraded once installed to meet future demand requirements.

3-Phase AC Supply | 100 Amp Feeder Pillars

100 Amp supply pillar is the smallest feeder pillar within the range and is available in four different configurations. These pillars cover 7kW supplies through to 50kW, with a differing number of connections on each solution.

100 Amp Supply Feeder Pillar

3-Phase AC Supply | 200 Amp Feeder Pillars

* Use of load management on chargers required

200 Amp Supply Feeder Pillar

200 Amp supply pillar within our range is available in four different configurations.

These pillars cover 7kW supplies through to 50kW, with a differing number of connections on each solution.

3-Phase AC Supply | 400 Amp Feeder Pillars

400 Amp supply pillar within our range is available in four different configurations.

These pillars cover 22kW supplies through to 120kW, with a differing number of connections on each solution.

3-Phase AC Supply | 600 Amp Feeder Pillars

Lucy Zodion | Fortress Feeder Pillars | Pre-Wired Feeder Pillars | Street Lighting Cut-Outs | DNO Cut-Outs | Electrical Power Distribution Enclosures

Further Reading

➡ More Lucy Zodion Blogs:

• Cut Outs & Isolators – Lucy Zodion Explain The Differences
• Feeder Pillars From Lucy Zodion – LV Electrical Power Distribution
• Optional Extras For Use With Lucy Zodion Fortress Feeder Pillars
• Waveform Cable Termination – 3 Core 300sqmm Cable Onto A 2 Ganged Metered Way In Lucy Cabinet

Galvanised & Stainless Steel | GRP | Pre-Wired | Underground Retractable Feeder Pilars

Read our Blog with Lucy Zodion: Cut-Outs & Isolators – What’s the Difference?

THORNE & DERRICK SPECIALIST ELECTRICAL DISTRIBUTOR

LV ♦ MV ♦ HV

T&D distribute the most extensive range of LV, MV & HV Cable Jointing, Terminating, Pulling & Installation 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, Earthing & Lightning Protection, Electrical Safety, Cable Glands, Arc Flash Clothing & 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

T&D, CATU Electrical Safety & Arc Flash Protection Specialists for SAP’s, Linesmen, Jointers & Electrical Engineers – Largest UK Stockist

3M Scotchlok 314 Prevents Moisture in Stadium Electrical Systems

Prevent Moisture in Electrical Systems

3M Scotchlok 314

The electrical systems used in stadiums are often exposed to harsh weather conditions such as heavy rain and moisture, creating serious consequences if they fail, with events potentially cancelled or delayed. Problems can occur in hard to reach areas such as floodlights or roof lights, making repair and maintenance difficult and expensive.

Moisture can get into places such as the junction boxes that connect to lighting and other electrical systems, creating poor and unsafe connections. These problems can be solved using 3M Scotchlok 314 Insulation Displacement Connectors (IDC’s), which prevent moisture from getting into electrical installations and causing damage.

3M Scotchlok Insulation Displacement Connectors

Proven Cable Splicing Technology Designed for your Specific Applications

Scotchlok 314 is an insulation displacement connector used for assembling electrical installations. The wires are inserted into the Scotchlok connector, and when the installation is complete, the connection is secured. This makes it easy and simple to work with, especially in difficult situations.

Due to the connector’s moisture-repellent properties, it’s extremely good for outdoor electrical installations such as exterior lights, signs, sprinkler systems, landscape lighting and other moisture resistant applications at low voltage.

• A “live-spring” joint is made by driving the “U” contact down into the connector
• As the “U” contact is pressed into the connector, it grasps the conductors as it displaces insulation
• The contact grips the conductor(s) and holds with firm, resilient pressure

Scotchlok IDCs incorporate a full wire range capability, an increased port size that accommodates up to 4.82mm insulation sizes, double “U” elements and a solvent-resistant plastic construction.

There are 15 different 3M Scotchlok IDCs to choose from to meet a variety of uses, including fixture, appliance, automotive, marine and control circuit wiring.

3M Scotchlok IDCs have a range of approvals and ratings that meet with industrial standards. To learn more give us a call.

3M Electrical | Scotchlok | ColdShrink | Scotchcast Resin | Scotch Electrical Tapes

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THORNE & DERRICK are national distributors of LV, MV & HV Cable Installation, Jointing, Duct Sealing, 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.

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

Cable Management | How To Protect Outdoor Electrical Cables

Cablesafe Cable Hooks

Cable Management & Cable Protection

Usage of safe electric cables and electrical safety outdoors is as significant as it is indoors. Cables are protected so that they are able to sustain in detrimental conditions and outdoor environment. Protection is primarily needed from external influences like mechanical damage, temperature, water and other such factors. Nonetheless, the electric cables should be protected in such a way that it allows continued passage of electricity.

Assurance of a safe working environment requires strong and durable protection against any electrical hazards, and to achieve it cables must be able to handle voltage safely and insulation must be tough enough for the environment. Furthermore, the connections must be reliable and cable covers can be used to provide protection against external environmental factors.

Cable Management | How To Protect Outdoor Electrical Cables

In working environments, the cables run across the path of vehicles and pedestrians increasing the risk factor. To prevent accidents, cable and hose protectors can be used which are suitable for all type of industries including construction sites and traffic signals.

In large work areas where heavy machinery and tools are used, loose cables can create a trip hazard and cause fatalities or injuries. Moreover, loose wires may lay across in the way of machines, making itself more prone to damage and accident. Highlighting the trailing cables with anti-slip marking tape and floor stands will minimize trip hazards on worksite, and loose wires can be protected using cable protectors which offer defence against damage from vehicles and pedestrians. Heavy duty cable protectors and cable ramps are ideal for high walking-traffic in high traffic areas like warehouses, construction sites, markets, etc. These durable cable covers allows traffic to pass over without imposing any considerable damage to cables.

Cable Management | How To Protect Outdoor Electrical Cables

Cable ramps are easy to use and possess a convenient button-down lid to insert and remove the cables easily. Hence, these industrial cable covers and cable ramps are used extensively in commercial and industrial settings, as they minimize trip hazards and protect electrical cables.

Cable management is an imperative component to ensure the protection of electrical cables because it helps to maintain basic functionality and promotes safe working conditions.

Cable management systems like cable trays and reels form a rigid structure to support and protect the electrical cables against insulation damage, cable damage, crosstalk and overheating.

Cable protection high quality systems like conduit system and trunking system can be used for complex configurations, making it capable to securely carry different types of cables at a time. In order to reduce the safety risk, the electrical cables can be protected using heavy duty cable ties and nylon cable ties (or cable cleats) which is an effective way to organize and manage the electrical cables. Conclusively, it is highly significant to protect the electrical cables effectively, otherwise these cables can cause harm and pose a serious safety risk.

Cable Management | Cable Cleats, Cable Clamps, Cable Hangers, Cable Ties

Stokbord Drum Cable Protection for Underground Utility Cables

CABLE SAFETY HOOKS & EQUIPMENT

OSHA maintains general industry regulations on walking and working surfaces that guard workers against hazards and the risk of injury including clutter, protruding objects and wet conditions. These Health & Safety hazards can harm everyone in a facility, regardless of title or job responsibilities.

Slips, trips, and falls cause nearly 700 fatalities per year and many more injurious accident in the workplace according to the Bureau of Labor Statistics. The CableSafe range of products ensure all cables, wires and hoses are suspended off the ground especially in high traffic work areas such as production floors, machinery spaces and deck level areas where maintenance is being carried out.

CableSafe Safety solutions are critical cable essentials and are well proved construction safety products.

Cable Safety Equipment | Cable Stand | Cable Bridge | Cable Rail | Cable Guard | Dropped Object Prevention Mats

FURTHER READING

• UKPN Cable Protection Tapes & Covers (LV MV HV)
• ENA-TS 12-23 : Cable Tiles & Cable Covers For Use With LV 11kV 33kV & HV Cables
• Stokbord Drum | Cable Protection for Underground Utility Cables

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THORNE & DERRICK are national distributors of LV, MV & HV Cable Installation, Jointing, Duct Sealing, 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.

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

Press Release | Thorne & Derrick Appointed Approved Stockist for UK Leading Cable Pulling Equipment Manufacturer

Electrical Safety Products | PPE & Safety Workwear for Utility Workers

Electrical Safety Products

Which personal protective equipment or electrical safety products are used for head protection? There are three different types of head protection that are commonly used:

1. Industrial Safety Helmets (Hard Hats) – designed to provide protection against falling materials from a height or swinging objects.
2. Industrial Scalp Protectors (Bump Caps) – designed to provide protection from hitting against static objects.
3. Caps/Hair Nets – designed to protect against entanglement.

Tasks in which head protection might be needed include:

• Construction
• Building Repairs
• Working in Excavations or Tunnels

What are 3 types of personal protective equipment?

Personal protective equipment (PPE) is industrial safety products used by workers, contractors or visitors to protect their bodies from workplace hazards. PPE can be classified in the following categories, based on the type of protection offered by the equipment:

• Eye protection– for example, safety spectacles/goggles, eye shields, Face shields etc.
• Respiratory protection– for example, disposable, cartridge, half or full face masks.
• Working from heights– for example, harness and fall arrest systems.

Eye Protection

What are 5 types of PPE?

The 5 different types of PPE are:

• Face Shields
• Gloves
• Gowns
• Head Covers
• Masks

What are the safety equipments?

PPE is the safety equipment that provides protection to users against health or safety risks at work. This include industrial safety products such as safety helmets, gloves, eye protection, high-visibility clothing, safety footwear and safety harnesses.

Electrical Safety Footwear – Jointers & Linesmens Boots

➡ See also Electrical Safety Equipment and Arc Flash Clothing.

What are the types of safety?

OSHA listed five different types of hazards that affect most of the workplaces. These hazards can be found in every kind of industry and should be handled appropriately to keep workers from injury or health issues.

• Safety Hazards: Such hazards are dangerous conditions in a facility that can cause injuries, illness, or even fatality like spills, working from height, unguarded machinery, wiring issues, confined spaces, forklifts, and much more.
• Biological Hazards: These hazards are typical for those who work with animals, people, or infectious plant materials. People working in daycare centres, hospitals, and nursing homes can be exposed to blood-borne pathogens.
• Physical Hazards: Physical hazards include environmental factors that can cause harm to workers even without direct contact. Radiation, sunlight exposure, working in extreme temperatures, and noisy environment are few examples of physical hazards.
• Ergonomic Hazards: Such hazards can be the most difficult to identify, but can easily cause strain and injury to the body. Employees can face ergonomic hazards if their workstations or chairs are not adjusted properly, if they are making repetitive movements in awkward position and other situations where the body and muscles are overstressed.
• Chemical Hazards: Any chemicals in the workplace could put individuals at risk. Some chemicals are even more harmful than others, but even common chemicals can cause skin irritation, serious illness, or breathing problems.

Hazardous Area Explosive Atmospheres

Further Reading

• Safety Equipment | Track And Manage Compliance
• Arc Flash Risks In The Rail Industry

Arc Flash Learning & Resources

Thorne and Derrick are proud to be distributors of ProGARM arc flash coveralls and protection.

We can help – should you require arc flash calculators or advice on the type of clothing and protection available please do not hesitate to contact us.

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