Description:

JOINTMASTER has used it’s vast experience and know-how, built up over many years in cable jointing, to develop a comprehensive range of low voltage products that offer outstanding quality and value, and still meet today’s exacting requirements of the electrical distribution industry.

JOINTMASTER has a comprehensive range of low voltage joints that have been designed to accommodate all cable sizes ranging from 1,5 – 300mm2.

JOINTMASTER offers the most comprehensive range of resin systems, in either polyurethane or epoxy. The resins are supplied in convenient easy to use see through mixerpacks and are protected in aluminium foil pouches.

Flame retardant resin joints are supplied with flame retardant polycarbonate joint moulds.

Application:

Low voltage, commercial cable jointing.

Kit Contents:

  • High Impact resistant joint mould
  • Resin – required to completely fill the mould
  • Sealant Tape for sealing mould onto cable
  • Disposable PVC gloves

Available Resins:

  • Opaque Polyurethane
  • Clear Polyurethane
  • Clear Epoxy
  • Flame Retardant Clear Epoxy
  • Flame Retardant Opaque Epoxy
  • Polyurethane Resins
  • Re-enterable Polyurethane Resins
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Test Results:

Test results of type tests performed on JOINTMASTER Low Voltage Resign Kits to BS6910

Test Requirement Result
Initial Insulation Resistance > 50 MW Complied
Initial Voltage Withstand
(2kV/15min)
No Breakdown Complied
Impact Test No Cracks or damage Complied
Insulation Resistance Met
After impact test
> 50 MW Complied
Voltage Withstand after impact
test 2kV/15min
No Breakdown Complied
Load Cycling Test
100 cycles @ 85oC
No Breakdown Complied

Joint Selection Guide:

“J” – Series

JOINT REF NUMBER
OF CORES
CABLE SIZE
Sqmm
Max cable
OD
Min cable
OD
J-0 2
3
4
1.5-4
1.5-4
1.5-2.5
16 6
J-1 2
3
4
6-16
6-16
4-10
26 9
J-2 2
3
4
16-25
16-25
10-16
32 17
J-2.5 2
3
4
25-50
25-50
16-35
38 22
J-3 2
3
4
35-70
35-70
25-70
50 20
J-4 2
3
4
50-120
50-120
70-95
58 32
J-5 2
3
4
120-185
120-185
95-120
68 40
J-6 2
3
4
185-300
185-300
150-300
80 50

Resin Specifications: FR 538:

PHYSICAL PROPERTIES RESULTS TEST METHOD
Colour: Resin
Hardener
Mixed resin
Off white
Dark brown
Beige
Mixed Viscosity 4500 – 5000 mPa.s @ 25oC
Pot life 10 – 15 minutes [500gm @ 25oC]
Gel time 15 – 20 minutes [500gm @ 25oC]
Setting time 30 – 40 minutes [500gm @ 25oC]
Specific gravity (mixed resin) 1,63 – 1,65 g/cm3
Exotherm 500gm
2000gm
65oC max @ 25oC
70oC max @ 25oC
Shrinkage Max 1%
Shelf Life 24 Months @ 23oC
MECHANICAL PROPERTIES
Tensile strength 37 N/mm² DIN 53455
Flexural strength 30 N/mm² DIN 53452
Elongation at break 3 %
Impact strength 11 kj/M² DIN 53453
Shore hardness Shore D 24h @ 25oC = 85
7 days @ 25oC = 85 – 90
ELECTRICAL PROPERTIES
Dielectric strength 26 kV/mm DIN 16946
Dielectric constant @ 50Hz 4.5 DIN 43483
Volume resistivity 23oC@ 50% Humidity 3,1 x 1015 W/cm BS903 Part C2
Surface resistivity 23oC@ 50% Humidity 1,5 x 1016 W/cm
Loss Factor Tan d 23oC 0,15
Water absorption 0.3% Max