TJV : PVC INSULATED JUMPER WIRE

GENERAL

This specification covers the requirements of jumper wire used for cross connecting purposes and main distribution frame wiring.

CONSTRUCTION :
Conductor : Tinned annealed copper wire, 0.50 and 0.65 mm. (24, 22 AWG) in size.
Insulation : Color coded or polyvinyl chloride.
Twisted Pairs : The insulated conductors are twisted into pairs, or triple with specified color combinations to provide pair identification.
Identification of conductor : The insulation of conductor shall be coloured as follows :

No. Of cores nominal	Conductor Diameter : 0.5 mm		Conductor Diameter : 0.65 mm
No. Of cores nominal	Overall Dia.(mm)	Standard Length	Overall Dia.(mm)	Standard Length
2 3 4 5	2 3 3 3	200 200 200 200	3 3 4 4	200 200 200 200

Total number of conductor in wire	Construction	Dia (mm)	Colour of Insulation	Length	Std Pkg.
1	Single	0.50	Green
2	Pair	0.50	Black and Yellow	200	1 coil
2	Pair	0.65	Red and White	200	1 coil
3	Triple	0.50	Red and White and Green
Tolerance				+1%

ELECTRICAL CHARACTERISTICS : TJV
1. Conductor resistance when measured at or corrected to 20 °C.
0.5 mm. = 95.1 Ohm/km.
0.65 mm. = 60.7 Ohm/km.
2. Insulation resistance when measured on 10 m. of single wire.
(Immersed in water) = 200 Megohm-km.
3. The dielectric of each insulated wire to all other wires.
(Immersed in water) = 1.0 kv (AC) 3 seconds.