Elastimold Egypt (ElSewedy Sedco)
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Elastimold – Egypt, a unit of Thomas & Belts USA are manufacturers of Pre-Molded technology for electrical cable jointing and termination. These are type tested by KEMA Lab – Holland & HV&SC WAPDA – Rawat, and are regularly used by all distribution companies in Pakistan, and other entities in the industrial and commercial sectors.
TERMINATIONS
Medium Voltage
Modular Terminators
.Premolded Cable Termination for XLPE, EPR and any Polymeric Insulation Cable up to 35(36)kV Indoor & Outdoor.
Maximum Reliability
.Computer designed and manufactured for superior temperature and stress management. Maximum reliability with control of known factors.
Superior Stress Management and Temperature Profile
.Computer designed and manufactured using a microprocessor – controlled screw injection press to ensure a constant stress control configuration. Operates cooler than the cable conductor.
Tests
.Meets the requirements of international standards, IEEE 48, IEC 60502-4 and VDE 0278.
Factory Molded
.For constant stress Control configuration.
100% Factory Pretested
.Assuring field installations meet design standards. Each stress cone undergoes partial Discharge Tests.
Fast Fitting
.Stress Cone fits directly over semiconductor of cables. Earthing provision available for stress cone.
Faster Installation
.Lower installation cost, requiring no special skills.
Extra Creepage Distance
.This is achieved by adding extra modular skirts.
Ambient Temperature
.-30°C upto +60°C.
Reduced Training Requirements
.Easily learned installation procedure, Human error totally eliminated.
High Voltage
Transmission Termination
.The 69 TCT Termination lightweight and easy to handle. It can be assembled horizontally on the ground and then raised to the installation position without a crane. Installation can be accomplished without special training using a normal assembly/tension device. The 69 TCT can utilize standard cable support systems.
POWER CABLE JOINTS
MEDIUM VOLTAGE
.The power cable joints are highly reliable, factory-molded and tested cable joints for 15kV, 25kV and 35(36)kV class distribution systems. When assembled, they provide permanent, fully shielded, fully submersible cable joints for direct burial or vault applications of solid dielectric single-core and three-core cables.
.Designed to meet or exceed the IEC 60502-4 standard as well as the rigid IEEE 404 standard.
.Offer benefits of an optimum design for electrical stress control, they are factory molded for consistent high quality and are factory tested before field installation to insure maximum reliability. They are easy to install without special tools and they are easy to specify for various cable types.
HIGH VOLTAGE
Transmission Cable Joints
up to 72.5KV
.All transmission cable joints are designed with stress control and heat transfer capabilities.
PROPERTIES OF EPDM RUBBER
RAW MATERIAL
Volume 1, Issue 1
The rubber used in all products manufactured by ELASTIMOLD-EGYPT is EPDM. This is a terpolymer of ethylene,propylene and non-conjugated diene. The resultant hydrocarbon-based elastomer has all the advantages of general purpose rubber but its performance excels in electrical strength and resistance to environmental condition.
Some of the more pertinent characteristics of EPDM are given below:
Electrical Properties
| – | Insulation | Conductive |
|---|---|---|
| Dielectric strength (kV/mm) | 33 | – |
| Dielectric constant | 2,7 tp 3,1 | – |
| Dissipation factor (x 10-3 ) | 2,5 | – |
| Volume resistivity at 20⁰C (Ohm-cm) | 1014 | 50max. |
Ozone Resistance
Unlike many rubbers EPDM can be considered immune to ozone attack. It easily meets cable specification which require testing for 3 hours at ozone concentrations of 0,025-0,030% by volume.
Corona Resistance
The outstanding resistance to corona is due to the ability of EPDM to withstand ozone and other chemical compounds formed by the discharge as well resistance to heat.
Radiation Resistance
the use of connectors manufactured by ELASTIMOLD-EGYPT for nuclear environments indicates the confidence engineers have in the radiation resistance of EPDM.
Chemical Resistance
Products made from EPDM resist attack by many acids,alkalis,detergents,phosphate,esters,ketones,alcohol and glycols they give particularly outstanding service in the presence of hot water and high pressure steam. Like all hydrocarbon-based elastomers EPDM is not resistant to hydrocarbon solvents and oils or chlorinated hydrocarbons.
Resistance to the Environment
EPDM rubber has properties comparable with the best speciality elastomers in resistance to weather. Accelerated life and salt spray tests suggested excellent properties which have been proven in practice by more than 25 years experience in widely varied applications all over the world.
Resistance to High Temperature
Electrical products moulded in EPDM will withstand air temperatures up to 130⁰C. Intermittent exposure to temperatures up to 175⁰C is practical with this compound depending on the exact conditions of exposure. Thick sectioned moulded connectors will withstand relatively greater exposure to heat.
Resistance to Low Temperature
Vulcanised EPDM remains flexible at very low temperatures and becomes brittle on impact only at temperatures below -60⁰C.
Resistance to Water
Water has little effect on the properties of EPDM hydrocarbon rubber.Even long immersion in hot water results in minimal loss of tensile strength.Tests also show a very low degree of water absorption.
Resistance to Mechanical Abuse
EPDM has good resistance to compression , cutting ,impact, tearing and abrasion over a wide temperature range.
Other Physical Properties
| – | Insulation | Conductive |
|---|---|---|
| Specific gravity (kg/dm3) | 1,33 | 1,12 |
| Tensile strength (N/mm2) | 4,8 | 11 |
| Elongation (%) | 400 | 450 |
| Shore hardness (Shore A) | 65 | 80 |
| Abrasion resistance | good | excellent |
| Heat ageing | good | good |
| Temperature range (⁰C) | -60 to + 130 | -60 to + 130 |
| Resistance to: | ||
| U.V. | good | good |
| ozone | excellent | excellent |
| sunlight | outstanding | outstanding |
| Water absorption | very good | very good |
| solvents | poor | poor |
| oil | poor | poor |
DEAD BREAK SEPARABLE CONNECTORS
L-Shape Elbow 156LR
.Elbow Connector is fully-rated 15/25kV, 250Amp Class dead break connector. Units include provisions for de-energized operation using standard hot stick tools. It has a standard interface for connecting to 15/25kV 250 Amp dead break bushing inserts, junctions and other accessories. The 156LR is equipped with an internal voltage test point. Mates with bushing interface conforms to CENELEC EN 50181 interface(A).
L-Shape Elbow 400LB
.Is designed to provide fully- shielded, dead-front submersible cable connections to high-voltage apparatus. The K400LB can be used up to 25kV for aluminum and copper conductors. The bushing interface conforms to CENELEC EN 50181 for use with standard 400/630A European switchgear C interface. A ground wire is attached for easy shield grounding after installation.
T Shape Elbow
.Body is designed to provide fully-shielded, dead-front submersible cable connections to high-voltage apparatus. It can be used through 36kV with conductor range up to 630 mm² for aluminum and copper conductors. The product mates with bushing interface customized from both sides.
HEAT SHRINK PRODUCTS
Cable Breakouts
Designed for cable sealing crutches and to provide resistance to abrasion, weathering and chemical attack. It’s trusted for indoor and outdoor applications for all types of polymeric and paper insulated cables.
End Caps
Heat shrinkable stabilized cross linked polyolefin sealing caps(SC), in black color are ideal for protecting cable ends. SC are designed to seal the end of cables against ingress of moisture and contamination, and provide insulation and resistance to abrasion, weathering and chemical attack. Such sealing caps are required for cable transport, storage and installation.
Boots
Heat shrinkable stabilized cross-linked Polyolefin anti tracking boots, in red or grey color, designed to provide protection to the end cables and bushing insulation and sealing against ingress of moisture and contamination and provide insulation and resistance to abrasion, weathering and chemical attack.
HEAT SHRINK TUBES
SHSI is an excellent product for sealing and insulating cable splices connections, terminations and jacket repairs. The tubing is designed to withstand the severe mechanical requirements of submersible, and direct buried installations.
LOW VOLTAGE HEAT SHRINK JOINT
SHSJ (cable joint) are outstandingly suitable for jointing two single or multi-core, polymeric (XLPE, PVC),Al or Cu, armored or non-armored in the low voltage range (up to 1 kV).
LOW VOLTAGE HEAT SHRINK TERMINATION
SHST (cable- termination) are outstandingly suitable for terminating multi-core polymeric (XLPE, PVC) and power cables, Al or Cu, armored or non-armored in the low voltage range (up to 1 kV).
COPPER METAL ACCESSORIES
TUBULAR COPPER CONNECTORS FOR MV JOINTS
Tube: Seamless, one piece tube.
Material: Electrolytic tough pitch copper.
Purity: High Purity (Chemical composition min. copper ratio 99.9 %)
Finish: Tin plated to assure maximum conductivity.
Identification: Conductor size, connector die size, number of crimping and crimping position are marked on every piece.
Manufacturing standard: DIN 46267 part 1.
Tube Manufacturing: In compliance with DIN EN 13600.
Conductivity: High conductivity > 96.6 % IACS.
IACS: international annealed copper standard.
TUBULAR COPPER LUGS FOR LV AND MV TERMINATIONS
Tube: Seamless, one piece tube.
Material: Electrolytic tough pitch copper.
Purity: High Purity (Chemical composition min. copper ratio 99.9 %)
Finish: Tin plated to assure maximum conductivity.
Identification: Conductor size, stud size, connector die size, number of crimping and crimping position are marked on every piece.
Manufacturing standard: DIN 46235.
Tube Manufacturing: In compliance with DIN. EN13600.
Conductivity: High conductivity > 96.6 % IACS.
IACS: international annealed copper standard.
STANDARD COPPER LUGS
Tube: Seamless, one piece tube.
Material: Electrolytic tough pitch copper.
Purity: High Purity (Chemical composition min. copper ratio 99.9 %)
Finish: Tin plated to assure and stud size are marked on every piece.
Conductivity: High conductivity > 96.6 % IACS.
IACS: international annealed copper standard.
COPPER BRAID
Material: Tinned Copper wire 0.3 mm.
Application: Screen restoration for copper screen cables.
Connect the cable metallic screen to earth in case of termination.
ALUMINUM METAL ACCESSORIES
TUBULAR ALUMINUM CONNECTORS FOR MV JOINTS
Tube: Seamless, one piece.
Material: Pure aluminum.
Conductivity: High conductivity > 58 % IACS.
IACS: international annealed copper standard.
Purity: High purity 99.5%.
Finish: Chemically treatment.
Identification: Conductor size, connector die size, number of crimping and crimping position are marked on every piece.
Tube manufacturing: According to DIN EN 755-7.
TUBULAR ALUMINUM LUGS FOR MV TERMINATIONS
Tube: Seamless, one piece.
Material: Pure aluminum.
Purity: High purity 99.5%.
Finish: Chemically treatment.
Conductivity: High conductivity > 58 % IACS.
Identification: Conductor size, stud size, connector die size, number of crimping and crimping position are marked on every piece.
Tube manufacturing: according to DIN EN 755-7.
Conductivity: High conductivity > 58% IACS.
IACS: international annealed copper standard.
TUBULAR ALUMINUM CONNECTORS FOR LV JOINTS
Tube: Seamless, one piece.
Material: Pure aluminum.
Purity: High purity 99.5%.
Finish: Chemically treatment.
Conductivity: High conductivity > 58 % IACS.
Identification: conductor size, connector die size, number of crimping and crimping position are marked on every piece.
Tube manufacturing: according to DIN EN 755-7.
Conductivity: High conductivity > 58% IACS.
IACS: international annealed copper standard.
TUBULAR ALUMINUM LUGS FOR LV TERMINATION
Tube: Seamless, one piece.
Material: Pure aluminum.
Purity: High purity 99.5%.
Finish: Chemically treatment.
Conductivity: High conductivity > 58 % IACS.
Identification: conductor size, stud size, connector die size, number of crimping and crimping position are marked on every piece.
Tube manufacturing: according to DIN EN 755-7.
Conductivity: High conductivity > 58% IACS.
IACS: international annealed copper standard.
BI-METALLIC INSERT LUGS FOR LV TERMINATIONS
Tube: Seamless, one piece.
Material: Pure aluminum.
Purity: High purity 99.5%.
Finish: Chemically treatment.
Ring Material: High purity 99.9 % E.T.P copper.
Ring finish: Plain copper.
Identification: Conductor size, stud size, connector die size, number of crimping and crimping position. are marked on every piece.
Tube manufacturing: according to DIN EN 755-7.
Manufacturing: Copper ring is inserted In the Al palm and excellent connection is assured.
BI-METALLIC INSERT LUGS FOR MV TERMINATIONS
Tube: Seamless, one piece.
Material: Pure aluminum.
Purity: High purity 99.5%.
Finish: Chemically treatment.
Ring Material: High purity 99.9 % E.T.P copper.
Ring finish: Plain copper.
Identification: Conductor size, stud size, connector die size, number of crimping and crimping position. are marked on every piece.
Tube manufacturing: according to DIN EN 755-7.
Manufacturing: Copper ring is inserted In the Al palm and excellent connection is assured.
BI-METALLIC FRICTION LUGS FOR MV TERMINATIONS
Palm Material: Pure electrolytic copper.
Palm finish: Plain copper.
Barrel material: Pure aluminum.
Barrel finish: chemically treatment.
Identification: Conductor size, stud size, connector die size, number of crimping and crimping position are marked on every piece.
BI-METALLIC FRICTION LUGS FOR LV TERMINATIONS
Palm Material: Pure electrolytic copper.
Palm finish: Plain copper.
Barrel material: Pure aluminum.
Barrel finish: chemically treatment.
Manufacturing: Copper palm is welded to Al barrel by cutting edge friction welding technology.
Identification: Conductor size, stud size, connector die size, number of crimping and crimping position are marked on every piece.
PORCELAIN OUTDOOR SEALING END
.The SEPT 72 conforms and type tested according to IEC 60840.
.Pre-molded stress control system made of EPDM rubber.
.Termination’s stress cone covers cable cross section area up to 2000 mm² with diameter over insulation up to 97 mm.
.Termination is filled with an insulating compound up to a level where the electric field is substantially reduced. The terminations base plates and the cables metallic screen are electrically insulated from the supporting structure by means of stand-off insulators, designed to withstand both mechanical and electrical operating stresses .
.Termination designed for operation under severe outdoor conditions.
.Main components of the termination are the porcelain hollow insulator, upper metal cap, top bolt, metal base plate, supporting insulators, silicon oil filling compound, O-Ring gaskets and pre-molded stress cone for electrical field control.
.Arcing horn, Corona Ring, Overhead Clamps are available under customer request, and to be ordered separately.
The following items shall be ordered separately:
TOOLS
GRINDING MACHINE
Application
The grinding machine is used to grind cable insulation surface and make it smooth free of any edges.
Features
.Various working speed.
.Can be used with all sandpaper grades.
.Efficient and time saver.
PEELING DEVICE
Application
The peeling device is applied to remove the outer semiconductor layer of the cable.
Features
.Available with wide range suitable for MV, HV cables.
.Can be adjusted to fit different cables C.S.A.
.Light weight easy to be controlled.
HEATING MAT
Application
Heating mat used to raise the temperature of the cable before removing its layers in order to make it able to be straightened.
Features
.Can be used over any cable regardless its C.S.A.
.Adjustable temperature.
.Offered with Temp controller to avoid overheating.
SEMICONDUCTOR REMOVER
Application
Semiconductor remover used to remove semiconductor layer in certain parts also to make the slope of the semiconductor and the stress cone area.
Features
.Can be used over any cable regardless its C.S.A.
INSULATION REMOVER
Application
Insulation remover is used to remove the insulation of the cable and expose the conductor.
Features
.Adjustable blade.
.Light weight.
STORING SET
Application
It consists of 3 parts, combined together to form a complete set to be used for joints and terminations storing and centering over the cables.
Features
.Can be used over any cable regardless it C.S.A.
.Reduced required time and power.
.Safe and controlled.
