Raychem Heat Shrinkable Straight Joint Kit HCVJ-M 70 Sq.mm 1 Core Aluminium Crimp (AAA1721010) The Raychem HCVJ-M Straight Joint Kit (AAA1721010) is a heat-shrinkable cable jointing kit designed for 70 sq.mm, 1-core XLPE power cables using an aluminium crimp connector. It is used to create a reliable straight-through joint while restoring the cable's electrical insulation, stress control, and environmental protection.…
The Raychem HCVJ-M Straight Joint Kit (AAA1721010) is a heat-shrinkable cable jointing kit designed for 70 sq.mm, 1-core XLPE power cables using an aluminium crimp connector. It is used to create a reliable straight-through joint while restoring the cable's electrical insulation, stress control, and environmental protection. Summary: Product Type: Heat Shrinkable Straight Joint Kit Model: HCVJ-M Part Number: AAA1721010 Cable…
The Raychem HCVJ-M Straight Joint Kit (AAA1721010) is a heat-shrinkable cable jointing kit designed for 70 sq.mm, 1-core XLPE power cables using an aluminium crimp connector. It is used to create a reliable straight-through joint while restoring the cable's electrical insulation, stress control, and environmental protection. Product Type: Heat Shrinkable Straight Joint Kit Model: HCVJ-M Part Number: AAA1721010 Cable Size:…
The Raychem HCVJ-M Straight Joint Kit (AAA1721010) is a heat-shrinkable cable jointing kit designed for 70 sq.mm, 1-core XLPE power cables using an aluminium crimp connector. It is used to create a reliable straight-through joint while restoring the cable's electrical insulation, stress control, and environmental protection. Summary: Product Type: Heat Shrinkable Straight Joint Kit Model: HCVJ-M Part Number: AAA1721010 Cable…
RAYCHEM Heat-Shrink Straight-Through Cable Joint Kit is a complete cable jointing solution for safely joining two power cables end-to-end. It uses heat-shrinkable insulation and sealing components to restore the cable system after jointing, providing electrical insulation, moisture protection, mechanical strength and reliable long-term service performance. The exact kit selection depends on the voltage rating, number of cores, conductor material/size, cable insulation and cable…
Raychem HV Heat Shrink Termination. Heat shrink high voltage terminations upto 72 kV are in service for over 40 years. They are suitable for installation in all climates, environments and polluted areas. Heat shrink high voltage termination comply to IEC 60840. Compact and modular design Quick and easy to install No special or expensive tools required Lightweight components Reduced waste…
HV Surge Arrester upto 216kV for substation protection from lightening and switching overvoltages. Bowthorpe EMP pioneered the development of polymeric composite housed surge arresters in early 1980’s and since 1986, has a proven service experience across the globe, operating in world’s toughest environments. Bowthorpe surge arresters provide active over-voltage protection, reducing system outages and protecting expensive terminal equipment. Proven moisture…
High quality Insulating mats conforming to Standards IEC 61111 & AS/NZS IEC6111:2020 High quality rubber provides complete protection against electric shock due to earth faults Suitable for applications and placed in front of electrical panels, switchgears and high voltage equipment for safe working environment for operators/users Choice of Class must be determined according to the maximal nominal voltage of network…
High quality Insulating blanket conforming to Standard IEC 61112 Protection of personnel from accidental contact with live or earthed electrical conductors, apparatus or circuits and avoidance of short circuits on electrical installations Made of elastomer of high dielectric properties Electrical insulating blankets conform to IEC 61112
Robust die-cast, Powder Coated aluminium enclosures conforming to Protection Category IP 66, IP67 and IP 68 and Impact Resistance upto IK09 Provides complete safety to electrical equipment Customization provided to standard enclosures including machining, Customized Powder Coating, screen printing, Accessories like Cable Glands, Terminal High impact and temperature resistant Weatherproof
Raychem RPG - Category A cable glands by Raychem RPG are metallic glands used in industrial safe areas for both armoured and unarmoured cables. They provide secure cable entry, sealing, strain relief, and protection against environmental factors. Available in single and double compression designs, these glands ensure high reliability, wide temperature tolerance, and compliance with international standards. Raychem RPG Cable…
Fibre-glass reinforced polyester enclosures in grey or black variants conforming to Protection Category IP 66, IP67 and IP 68 Standard enclosures in RAL 7000 grey and RAL 9011 black colors Ingress protection of IP 66 as per IEC 60529 Standard Provide protection of IP 67 and IP 68 on request
Resistant to corrosion to electrical equipment Suitable for harsh environment in food, chemical, pharmaceutical and marine industries Customization in design and sizes
Medium Voltage Insulating Boots. Cold applied unscreened elastomeric insulating boots (in Silicon or EPDM) are moulded parts, fitted over the connection between a cable lug and inline or right-angled equipment bushing, to improve phase-to-phase and phase-to-ground insulation. They are used in switchgear and transformer cable boxes where the air clearances are insufficient for normal operation or protect against flashover due…
Providing electrical and mechanical protection, the gloves are available in bicolour from 500 VAC to 17500 V AC KAMFET Electrical Insulating Gloves protect people working on live voltages or in proximity of electrical installations from electrical shocks Used for a wide range of voltages from 500 V AC upto 17000 V AC Compliant with EN60903:2003, IEC60903:2014 and CE category III…
How They’re Used These mats are typically placed on the floor in front of electrical panels, switchboards, battery rooms, and other live installations so that anyone standing on them with the right PPE (insulated gloves/boots) has a layer of insulation between their body and ground, reducing shock risk.
Insulating rubber gloves are personal protective equipment (PPE) designed to protect workers from electrical shock when working with or near live electrical circuits. Made from high-quality, non-conductive rubber, these gloves are essential for electricians, linemen, and maintenance personnel operating in high-voltage environments.
Medium Voltage Insulating barriers. BCIC preformed covers provide connections for insulators, bushings and busbars. Customized covers can be made simply and economically by vacuum forming non-shrinkable sheet material. Installation is very simple often with no need to disconnect busbars. BCIC covers are held in place with UV-stabilized plastic nuts and bolts, rivets or tie-wraps, and can be easily removed for…
Medium Voltage Heat Shrink/ Fusion tapes. HVBT heat-shrinkable tape is ideal for use on complex shapes and where busbars cannot be disconnected. HVBT tape shrinks 30% longitudinally and an adhesive layer flows and seals the layers of tape during installation. As with the other components in the system, the adhesive does not bond to metalwork, allowing easy removal for inspection…
Ladder Type Cable ties with Pure Polyester coating, using ratchet mechanism. Ladder Type Cable Ties are designed with Ratchet Mechanism System. They are resistant to corrosion and suitable for indoor, outdoor or harsh environments.
Ladder Type Cable ties with metallic finish, using Ratchet Mechanism. Ladder Type Cable Ties are designed with Ratchet Mechanism System. These Cable Ties are resistant to corrosion and suitable for indoor, outdoor or harsh environments.
Leather over gloves/ protector worn over rubber gloves for protection against mechanical hazards Used with rubber insulating gloves to enhance mechanical protection Velcro at the cuffs adjust the tightness to the user's hand
Boltless low power loss C-Wedge Type Connectors used in Distribution and High Voltage Networks. AMPACT C-Wedge type Boltless Connectors used for same or different conductor combination or on solid rod equipment terminal connections. Consisting of 2 parts, C-Body and Wedge, it prevents degradation and achieves significantly lower resistance. Thermal cycling causes conductors to expand and contract, but the Connector C-Body…
Summary: Raychem Low Loss Boltless C-Wedge Connectors Boltless low power loss C-Wedge Type Connectors used in Distribution and High Voltage Networks. AMPACT C-Wedge type Boltless Connectors used for same or different conductor combination or on solid rod equipment terminal connections. Consisting of 2 parts, C-Body and Wedge, it prevents degradation and achieves significantly lower resistance. Thermal cycling causes conductors to…
Raychem LV Surge Arrester upto 440V for protection from lightening and switching overvoltages. LV Surge Arresters provide protection for low-voltage overhead lines, consumer in-house supplies, distribution transformers and other systems. Numerous tests have confirmed durability of the housing, even when exposed to extreme temperature fluctuations and contamination Suitable for indoor and outdoor applications Integrated disconnector and 1m line lead Overhead…
LV Surge Arrester upto 440V for substation protection from lightening and switching overvoltages. LV Surge Arresters provide protection for low-voltage overhead lines, consumer in-house supplies, distribution transformers and other systems. Numerous tests have confirmed durability of the housing, even when exposed to extreme temperature fluctuations and contamination Suitable for indoor and outdoor applications Integrated disconnector and 1m line lead Overhead…
LV Surge Arrester upto 440V for substation protection from lightening and switching overvoltages. LV Surge Arresters provide protection for low-voltage overhead lines, consumer in-house supplies, distribution transformers and other systems. Numerous tests have confirmed durability of the housing, even when exposed to extreme temperature fluctuations and contamination Suitable for indoor and outdoor application Integrated disconnector and 1m line lead. Overhead…
MCS for 25 KV high speed requirements - 20 KN and 24 KN. Raychem Indigenous Modular Cantilever System is designed to support the assembly of overhead power transmission wires — i.e., catenary (1000/1200 kgf tension), contact (1000/1200 kgf tension), and droppers — to transfer the overall bending, transverse, and vertical loads to the mast via insulators. The quintessential cantilever is…
Raychem RPG Medium Voltage (MV) Switchgear Terminations are screened separable cable connectors designed for safe and reliable connection of medium-voltage power cables to switchgear, transformers, RMUs, and GIS equipment. These terminations are compact, space-saving, and engineered for voltage applications up to 36 kV. Key features include: High electrical reliability and operational safety Compact design suitable for modern switchgear panels Available…
Raychem RPG Medium Voltage (MV) Switchgear Terminations are screened separable cable connectors designed for safe and reliable connection of medium-voltage power cables to switchgear, transformers, RMUs, and GIS equipment. These terminations are compact, space-saving, and engineered for voltage applications up to 36 kV. Key Points (Summary) Used for terminating MV cables into switchgear panels Compact, space-saving, and highly reliable design…
Raychem Medium Voltage (MV) switchgear terminations are screened separable connectors used to connect power cables to switchgear systems safely and efficiently. They are designed for voltages up to 36 kV and provide reliable insulation, stress control, and compact connections. 🔹 Key Points (Summary) Used for terminating MV cables into switchgear panels Compact, space-saving, and highly reliable design Available in two…
Medium Voltage screened separable connectors for switchgears. Raychem developed screened separable connectors for switchgears which are compact and space saving, having high degree of reliability and safety. These terminations are designed, developed, and tested upto 36 kV for almost all sizes of cables. Switchgear terminations are either OUTER CONE type (suitable for bushings as per EN 50181 for Type A…
Raychem MV Surge Arresters (up to 52 kV) Raychem MV surge arresters (up to 52 kV) are metal-oxide (ZnO), gapless protective devices used to safeguard medium-voltage power systems from lightning and switching overvoltages. They use MOV (metal oxide varistor) technology with no spark gaps, giving fast response and better protection levels. The arresters have polymeric (silicone rubber) housing, which is…
Raychem MV surge arresters are modern, reliable, and efficient devices that protect medium-voltage systems by safely diverting surge currents to ground and preventing equipment damage. Excellent TOV performance. Safe, non-shattering failure in short circuit test Higher energy handling capability Crimped structural construction is light in weight, provides optimal mechanical strength Void free construction and optimum interface sealing achieved by bonding…
MV Surge Arrester upto 45kV for substation protection from lightening and switching over voltages. In past 15 years, almost all high-voltage networks used MO arresters. However, in medium-voltage networks, a substantial number of conventional gapped arresters (SiC resistors and series spark gaps) were installed until a few years ago. Today MO (Metal-Oxide) arresters without spark gaps have gained popularity. Networks…
MV Surge Arrester upto 45kV for substation protection from lightening and switching over voltages. In past few years, almost all high-voltage networks used MO arresters. However, in medium-voltage networks, a substantial number of conventional gapped arresters (SiC resistors and series spark gaps) were installed until a few years ago. Today MO (Metal-Oxide) arresters without spark gaps have gained popularity. Networks…
Overhead line covers for bare conductors. MVLC provides state-of-the-art insulation to help prevent electrical outages. It is designed to insulate existing bare lines without costly conductor replacement expenditures or additional line hardware. MVCC provides high quality electrical insulation and made from non-tracking silicone material suitable for harsh medium voltage outdoor environments. MVCC is suitable for applications up to 25 kV…
🔹 Summary of Raychem MV Surge Arresters (up to 52 kV) Raychem MV surge arresters (up to 52 kV) are metal-oxide (ZnO), gapless protective devices used to safeguard medium-voltage power systems from lightning and switching overvoltages. They use MOV (metal oxide varistor) technology with no spark gaps, giving fast response and better protection levels. The arresters have polymeric (silicone rubber)…
Raychem MV surge arresters (up to 52 kV) are metal-oxide (ZnO), gapless protective devices used to safeguard medium-voltage power systems from lightning and switching overvoltages. They use MOV (metal oxide varistor) technology with no spark gaps, giving fast response and better protection levels. The arresters have polymeric (silicone rubber) housing, which is moisture-resistant, pollution-resistant, and non-shattering. Designed as per IEC…
Raychem MV surge arresters (up to 52 kV) are metal-oxide (ZnO), gapless protective devices used to safeguard medium-voltage power systems from lightning and switching overvoltage. They use MOV (metal oxide varistor) technology with no spark gaps, giving fast response and better protection levels. The arresters have polymeric (silicone rubber) housing, which is moisture-resistant, pollution-resistant, and non-shattering. Designed as per IEC…
MV Surge Arrester upto 45kV for substation protection from lightening and switching over voltages. In past few years, almost all high-voltage networks used MO arresters. However, in medium-voltage networks, a substantial number of conventional gapped arresters (SiC resistors and series spark gaps) were installed until a few years ago. Today MO (Metal-Oxide) arresters without spark gaps have gained popularity. Networks…
Raychem MV surge arresters are modern, reliable, and efficient devices that protect medium-voltage systems by safely diverting surge currents to ground and preventing equipment damage. Excellent TOV performance. Safe, non-shattering failure in short circuit test Higher energy handling capability Crimped structural construction is light in weight, provides optimal mechanical strength Void free construction and optimum interface sealing achieved by bonding…
MV Surge Arrester upto 45kV for substation protection from lightening and switching over voltages. In past few years, almost all high-voltage networks used MO arresters. However, in medium-voltage networks, a substantial number of conventional gapped arresters (SiC resistors and series spark gaps) were installed until a few years ago. Today MO (Metal-Oxide) arresters without spark gaps have gained popularity. Networks…
PCA Polymeric surge arresters provides active over-voltage protection that contributes directly to improved reliability of the system, reduces outages and protects expensive terminal equipment. PCA silicone surge arresters are designed and tested to meet customer demands with reliability in offering optimum operational performance. Proven moisture sealing technology Non-tracking insulating silicone materials Fully integrated single piece and void free design Safe…
Ex metal cable glands suitable for unarmoured cables suitable in Group II (Surface). Raychem RPG supplies cable glands suitable for Ex Hazardous areas in which flammable substances (Oil & Gas) substantially exist, making it potentially explosive atmospheres. Our cable glands are compatible for equipment/enclosures/junction boxes of Group II (Surface Industries) with Equipment Protection. Designs specific for non-explosion-hazard zones Approved in…
For aluminium and copper conductors and best suited to avoid rotation or movement of lugs One-Hole Compression Lugs for aluminium conductors ranging from 10 – 500 mm2
Offer overhead connectors like Branch Connectors, T-Connectors, Bi-metallic Lugs, Bimetallic Sleeves, PG Clamps and Droppers as per NFC Standard. Different types of Compression/Bolted type Connectors and Droppers. They are extensively used by SNCF (French Railway) in France, DMRC and other countries. Available for 1.5 kV DC and 25 kV AC for semi/high speed Railway Network Sturdy mechanical and electrical contact…
Composite Insulators for 25 KV line Stay, Bracket and 9Tonnes. Polymeric Insulator combines mechanical strength with excellent pollution-free performance. High tensile strength of glass fibre combined with HV shedded profile produces rugged, lightweight tension insulators for overhead line applications. Railway Polymeric Insulator combines mechanical strength with excellent pollution performance. High tensile strength of the glass fibre combined with HV shedded…
Summary : Raychem RLT 4E Four-Hole Lugs are heavy-duty copper transformer lugs designed for secure termination of large conductors in high-current applications. Their four-hole palm design provides strong mechanical stability, prevents loosening, and ensures a low-resistance, reliable electrical connection. With tin-plated copper construction for corrosion resistance, they are ideal for use in transformers, substations, and industrial power systems.
SUMMERY A 33kV Raychem Cable Jointing Kit is a high-voltage cable accessory used to connect two 33kV power cables safely and reliably in electrical distribution systems. It provides electrical insulation, mechanical protection, and environmental sealing to ensure uninterrupted power transmission in medium-voltage networks. These kits generally use heat-shrink technology, which shrinks and seals the joint when heat is applied, creating…
The Raychem 33 kV End Termination Kit is a heat-shrink based cable accessory designed to safely terminate medium-voltage power cables. It ensures reliable insulation, stress control, environmental sealing, and long-term electrical performance when connecting cables to switchgear, transformers, or overhead lines. A Raychem 33 kV end termination kit is used to safely connect 33 kV power cables to electrical equipment…
Raychem Busbar Insulation Sleeve is a heat-shrinkable electrical insulation product designed to cover and protect energized copper or aluminium busbars. When heated, the sleeve shrinks tightly around the busbar to provide reliable insulation, improve safety, reduce the risk of flashover and accidental discharge, and enable more compact electrical equipment designs.
Raychem RPG Electrical Insulating Gloves are safety gloves designed to protect workers from electric shock and arc-flash hazards while working on energized electrical equipment. They are made from high-quality insulating rubber and comply with international safety standards such as IEC 60903 and EN 60903.
Summery : Raychem Electrical Insulating Gloves are protective rubber gloves used by electrical workers to prevent electric shock while working on live equipment. They are made from natural rubber latex, providing high dielectric strength, flexibility, and durability. These gloves are available in different voltage classes (Class 00 to Class 4), offering protection from low voltage up to about 36 kV,…
Summary of Raychem Fire Rated Steel Junction Box: Raychem Fire Rated Steel Junction Boxes are durable, fire-resistant electrical enclosures designed to maintain circuit integrity during fire conditions. Made from powder-coated steel or stainless steel, they protect electrical connections from flames, water, and mechanical impact. They comply with key standards like DIN 4102-12 and BS 6387:2013, ensuring reliable performance in critical…
Raychem Heat Shrink Medium Voltage (MV) Terminations are cable termination systems designed for medium-voltage power cables from 3.6 kV to 36 kV. They provide safe and reliable electrical connections for transformers, switchgear, motors, and distribution systems. These terminations use heat-shrinkable polymer technology to provide insulation, stress control, sealing, and environmental protection. Raychem MV Heat Shrink Terminations are widely preferred because…
Superior Environmental Sealing:Raychem sleeves often feature an internal adhesive lining (such as hot-melt adhesive) that melts when heated, providing a waterproof, airtight, and corrosion-resistant seal for cable joints, splices, and repairs. High-Performance Material:They are typically made from radiation-crosslinked polyolefin, which offers exceptional resistance to abrasion, chemicals, and mechanical stress, making them durable in harsh environments. Versatile Shrink Ratios:They possess high…
Uses: Joining underground or overhead power cables Repairing damaged cable sections Used in LT/HT power distribution systems, substations, and industrial plants Important Notes: Cables must be properly cleaned and aligned before jointing Correct heating temperature ensures uniform shrinking Moisture and dust must be avoided during installation Use suitable PPE and follow manufacturer instructions Raychem Heat shrink straight-through jointing kits provide…
Installation Tips Heat Application: A hot air gun is used to shrink the tape, typically requiring temperatures over 200°C for specialized tapes like RT-555, the adhesive flows to bond layers together sealing the assembly.
⚙️ Installation Notes Heat is applied (usually with a hot air gun or Gas torch) to shrink the tubing onto the cable and form a sealed termination. These kits include adhesive-lined sleeves for better moisture sealing. Suitable kit selection depends on voltage class, cable size, and installation environment. RAYCHEM is knowing for its QUALITY, RELIABILITY and HIGH PERFORMANCE.
🔹 Summary – Raychem E1RW Cable Gland The E1RW cable gland by Raychem RPG is a double compression, explosion-proof cable gland used for armoured cables in hazardous industrial areas. Provides secure cable entry, sealing, and retention Suitable for oil & gas, mining, and chemical industries Offers high protection (IP66/IP68) against dust and water Supports Ex d, Ex e, Ex tb…
Summery : Ex metal cable glands suitable for armoured and wired cables in Group I (Mining) and Group II (Surface). Raychem RPG supplies cable glands suitable for Ex Hazardous areas in which flammable substances (Oil & Gas) substantially exist, making it potentially explosive atmospheres. Our cable glands are compatible for equipment/enclosures/junction boxes of Group II (Surface Industries). Design is specific…
Quick Tips When working on energized equipment, always use gloves with a class rating above the system’s voltage. For arc flash hazards, use composite/arc-rated gloves designed to withstand specific arc energy levels. Use leather over-gloves for mechanical protection (abrasion, puncture). Store and handle insulating gloves carefully to avoid damage. Periodic dielectric testing is required to maintain safety certification. Electrical gloves…
How does it Work? During normal voltage → arrester acts as an insulator. During surge (lightning/switching) → ZnO varistors conduct heavy current to ground. After surge → arrester returns to non-conducting state. This protects transformers, switchgear, cables, and other equipment. Why Polymer over Porcelain? Raychem polymeric surge arresters offer advantages over traditional porcelain units: Lighter weight and easier handling/installing. Hydrophobic…
🔹 Summary : Raychem RPG Cable glands- Category A cable glands by Raychem RPG are metallic glands used in industrial safe areas for both armoured and unarmoured cables. They provide secure cable entry, sealing, strain relief, and protection against environmental factors. Available in single and double compression designs, these glands ensure high reliability, wide temperature tolerance, and compliance with international…
Raychem RPG Inner Gloves (ESU) Cotton inner gloves worn under rubber gloves Inner gloves are used with rubber insulating gloves to absorb perspiration and enhance the grip Elasticized wrist for fitment Universal size: 9/10
The Raychem Busbar Insulating Tape is a reliable and versatile insulation solution that combines heat-shrink or self-fusing technology with strong electrical properties. It ensures safe operation of busbars by preventing flashover, improving insulation, and enhancing system reliability in power distribution networks.
Releasable type cable ties with special grade polymer coating with PPA-517 material for superior hygroscopic and corrosion resistance properties, they are reusable and convenient for temporary installation and cable pulling. Releasable Cable Ties are used for multiple installation over long period of time. They are made with special grade polymer coating for superior hygroscopic and corrosion resistance properties and suitable…
Releasable type cable ties with metallic finish, they are reusable and convenient for temporary installation and cable pulling. Releasable Cable Ties are used for multiple installation over long period of time. They are made with special grade polymer coating for superior hygroscopic and corrosion resistance properties and suitable for indoor, outdoor or harsh environments.
RHC-S Aluminium H-Crimps RHC-S Aluminium H-Crimps are H-tap compression connectors used for making secure electrical joints between aluminium and copper conductors. They are made from high-conductivity electrolytic aluminium with a tin-plated finish for better durability and corrosion resistance. They feature a reversible H-shaped design with bendable tabs, ensuring strong mechanical and electrical connections, and are compatible with various conductors such…
As per European Standards, barrels used in regular copper electrical applications One-Hole Lugs – EURO series for copper conductors ranging from 1.5 – 400 mm2
Standard barrel for regular copper electrical applications One-hole, standard barrel lug for copper conductors ranging from 1.5 – 1000 mm2 UL Listed as per UL 486A-486B for use up to 35 KV and temperature rated 90°C
For significant lower dead weight aluminium conductors in power distribution application One-Hole Lugs for XLPE Cables for aluminium conductors ranging from 6 – 1000 mm2 With significant lower dead weight, it is a popular choice for power distribution applications
Longer length barrel with extra crimps for heavy duty loads. Two hole heavy duty lugs are best suited to avoid rotation or movement of lugs. Two-Hole Long Barrel Lugs for copper conductors ranging from 6 – 1000 mm2
Summary of Raychem RPG RLLB 2E – Two-Hole Lugs (Long Barrel) : The Raychem RLLB 2E Two-Hole Long Barrel Lug is a robust and reliable cable termination solution. Its long barrel ensures strong crimping, while the two-hole design provides added stability, making it ideal for heavy-duty, high-current electrical connections. The RLLB 2E Two-Hole Long Barrel Lug is a heavy-duty copper…
Longer length barrel with extra crimps for heavy duty loads. Two hole heavy duty lugs are best suited to avoid rotation or movement of lugs. Two-Hole Long Extended Barrel Lugs for copper conductors ranging from 10 – 1000 mm2