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Shrinkable Joints & Terminations >> |
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Heat Shrink Cable Termination
Systmes
Our constant interaction with the
end users of cables has provided us in-depth information
of all customers problems, from concept to commissioning.
Today Master Electricals is involved not only in manufacturing
and marketing cables and cable accessories, but it
is also a total cable company whose activities, include
cable laying jointing commissioning and special technical
training programmes for customers.
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Master Electricals
Heat Shrink Cable Termination
Systems comprise of material in an expanded form, which
on application of heat, shrinks down to a predetermined
diameter adhering to any conductor size in between firmly,
and simultaneously the inside coating if any , melts
and seal the ends. Hence in a single step, insulation
and perfect environmental sealing is achieved. |
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Unique Features
  Heat
shrinkable terminations offer many distinct advantages over
conventional systems.
• Quick and easy to install
• Effective and reliable stress control
• Superior surface protection
• Covers all types of conductor and connection shapes
• Environmental sealing by specially developed sealants
• Flexible kit sizes, reducing inventories
• Compact and hence multiple terminations possible
• Easy to open no loss of cable
• Unlimited shelf life
• Reduced down time
• Immediate energization of cable on completion
• Minimal structural support required
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| Designed to Meet International
Specifications |
 Stress
Control :
Heat shrinkable electrical
stress control material has a carefully controlled volume
resistivity and permittivity, thus providing an electrical
stress control function at I end of the cable screeen, by
a defined impedencc characteristic. The installed tubing supresses
electrical discharges to prevent insulation damage in service.
In the case of belted cable it is necessary to provide electrical
continuity between the stress control tubing and the lead
or aluminium sheath. This is achieved by the use of conductive
heat - shrinkable moulded parts with very low electrical resistance.
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Surface Protection
Early experiments at 11 kv demonstrated
the need for special tracking resistance materials
for use at high voltages. These material had to be
non-tracking nor only in clean environments, but also
in the presence of dust, smoke and other contaminants
of outdoor environments.
The material used in Heat Shrink terminations has
superior surface properties whereby it can withstand
the most severe external environment without tracking.
All terminations have this surface protection as an
intergral part of the system.
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Environmental Sealing
Terminations are environmentally
sealed, so that no air, water or contaminats can get
into the system.
Specially developed mastics and sealants are supplied
in the kits in tape or coating form. Coatings are in
the form of an inside lining of heat-shrinkable tubings
and cable breakouts. This coating on heating melts and
flows sealing the ends of the tubings and hence protecting
them from the environment. |
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 Heat
Shrink Termination
For 1 core/3 core XLPE / PILC Cable From 22
Kv - 36 Kv Voltage
1 Lug Sealing Tape
2 Terminal Connector
3 Conductor
4 Terminal Sleeve
5 Anti Tracking Sleeve + Oil Barrier Sleeve (PILC)
6 Stress Control Sleeve
7 Rain Shed
8 Armor Bonding Braid
9 Stress Control Paint
10 Worm Drive Clamp
11 Copper Braid
12 Constant Force Spring Clamp
13 Trifurcatine Break Out |
| Heat shrinkable
HV straight through joints upto 72 kv for XLPE/PILC cables |
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High Voltage Power Cable Joints:
Heat shrinkable cable joint systems are
designed for all types of cables viz PILC, XLPE, PVC and
rubber insulated of single and multiconductor constructions
upto 72 kv. The joints are installed rapidly requiring far
less installation effort and time than epoxy/ polyurethane,
tape or premoulded kits. The kits reconstruct the jointed
cable with factory engineered and tested components and
provide a moisture proof environmental seal. A unique mechanical
protection system which far exceeds the requirements of
Engineering Recommendations and provides a strong and impact
resistant envelop around the jointed cables. The kits meet
or exceed IEEE 404, VDE 0278, and other international standards.
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| Heat shrinkable
LV straight through joint for XLPE I PVC f PILC cables |
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Low Voltage Joints
Joints for 2, 3 & 4 core PVC,PILC, XLPE
and rubber cables adopt the well proven heat shrink technique
to give water tight environmental sealing of the cables,
thereby . completely eliminating the need for compound or
resin filling. The result is a quick and economically installed
joint requiring no special skills. The joints cut handling
problems, have unlimited shelf life upto 500C and have mechanical
strength equal to or better than the cable itself.
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| Heat shrinkable
LV terminations for XLPE i PVC | PILC cables. |
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Low Voltage Terminators
Installed in millions throughout the world
and widely specified by electrical utilities, cable terminations
are acknowledged to the simpler, more reliable and much
cheaper to install than traditional systems. LV terminations
for PILC, PVC, XLPE and rubber cables are available.
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Heat Shrinkable
Straight Joints upto 36 kV
for XPLE/PILC
Insulating Cable |
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| 1 In Line Connector
/ 2 Yellow Mastic / 3 Stress Control Paint / 4 Stress Control
Sleeve (Black) / 5 Insulating Sleeve (Red) / 6 Dual Wall Sleeve
(Red & Black) / 7 Red Mastic / 8 Stress Control Mastic /
9 Water barrier Sleeve / 10 Copper Woven Mesh Tape / 11 Constant
Force Spring Clamp (optional) / 12 Armour Continuity Connection
/ 13 Worm Drive Clamp / 14 G. I. Corrugated Outer Mesh / 15
Outer Protection Sleeve. |
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Heat Shrinkable
Straight Joint
for 1.1 KV PVC / XPLE
/ EPR / LT. cable |
 1
In line Connector
2 Insulation Sleeve
3 Armor Continuity Connection
4 Worm Drive Clamp
5 Cable Insulation
6 G. I. Carrugated Mesh
7 Outer Jacking Sleeve |
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