Intemp 250

Single core silicone rubber  Intemp 250


Application

Intemp 250 high performance cable is specially designed to operate perfectly under the more
Arduous high temperature industrial conditions . It gives everything you want in high temperature cable - moisture resistance, toughness, flexibility and of course , a continuous operating temperature of 250 C

   Equipment fitted with Hi temp at the manufacturing stage gives trouble-free service and wherever old wiring circuits are being replaced with Hi temp, users find that they have less breakdowns to worry about and less costly downtime

   As well as being easy to handle, easy to install and easily terminated using conventional crimping techniques, Intemp 250  has been shown to last up to four times as along as other high temperature cables.

***  Hi Temp 350 and 600 also available

Range and dimensions    

Standard High Performance
Nominal conductor area mm Nominal overall diameter mm Approx cable weight kg/km Nominal overall diameter mm Approx. cable weight kg/km
1.0 2.89 21 3.89 24
1.5 3.14 25 4.14 29
2.5 3.57 35 4.57 39
4.0 4.08 49 5.08 54
6.0 5.98 88 6.98 97
10.0 7.15 131 8.15 141
16.0 7.88 180 9.38 197
25.0 9.17 259 10.67 280
35.0 10.88 380 12.88 412
50.0 12.83 556 14.83 575
70.0 14.98 728 16.98 776
95.0 17.61 1011 20.61 1096
120.0 19.31 1234 22.31 1328
150.0 20.81 1490 23.81 1592
185.0 23.33 1885 26.33 2001
Current Ratings
Nominal conductor area mm Conductor resistance at 20C mm Maximum current rating for one cable in free air (ambient temperature up to 80C) amp
1.0 20.0 25
1.5 13.7 40
2.5 8.21 54
4.0 5.09 74
6.0 3.39 98
10.0 1.95 135
16.0 1.24 180
25.0 0.795 240
35.0 0.565 290
50.0 0.393 375
70.0 0.277 434
95.0 0.21 550
120.0 0.164 640
150.0 0.132 740
185.0 0.108 810
Minimum bending radii - Overall diameter x 10

  Construction 
 
 Flexible Nickel plated copper conductors, PFA insulated, glass fibre braided and heat resistant
varnished overall.Intemp 250 High Performance contains additional Glass Mica tapes over the PFA.
Voltage rating 600/1000V, maximum continuous conductor 250C.Hi temp 250 is easily terminated
with nickel plated lugs using conventional crimping techniques.  
 
Intemp 250 will operate at a maximum continuous conductor temperature of 250C. 
In circumstances where the cable is not exposed to touch and does not run in contact with, or in
the close vicinity of heat-sensitive materials, this enables it to be run at high ratings.Under these
conditions it may be necessary to consider special fusing arrangements and since volt drop/power
losses will be high this should be allowed for in the installations. 
 
Rating factors 
 
For higher ambient temperatures the following factors must be applied: 

Ambient temperature C 100 120 140 160 180 200 220 240
Factor 0.94 0.87 0.80 0.73 0.64 0.54 0.42 0.24

When cables are enclosed a further de-rating of 0.8 must be applied.   When cables are grouped
together and touching, the following factors apply:   

No. of cables in group 2 3 4 5 10 15 20 25
Factor 0.8 0.7 0.65 0.6 0.45 0.4 0.36 0.33