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Draka 792661 ī
԰ : ToughCat cat7 S/FTP 4pr 0.27mm2
ǰ

Application
Generic Data transmission. This cable is a Cat7 S/FTP cable meant use as installation/horizontal cable in tougher
electrical and mechanical environment, including ships and offshore units. 
 
Standards
EN 50173-1; EN 50288-4-1
ISO/IEC 11801; IEC 61156-5
Det Norske Veritas (DNV) spesification No. 6-827.50-2

Certification
DnV certification Number: E-9545

Fire rating
LSHF-FR(SHF1) : IEC 60754-2; IEC 61034, IEC 60332-3-24

Chemical resistance
Mineral oils IRM 902 (IEC60811-2-1) : 7 days/23C
                                                       4 hours/70C
Diesel - IRM 903 (IEC60811-2-1) : 7 days/23C
                                                 4 hours/70C
 
Construction
Conductor Stranded copper wire 0.27 mm2
Insulation Foam-PE, 1.6 mm
Twisting 2 cores to the pair
Cable lay up 4 pairs
Pair screen Al-laminated plastic foil around each pair
Overall screen Copper braid, tinned 6,6 mm
Sheath Oil resistant, Fire retardant and halogen free LSHF-FR (SHF1).
 
Electrical Properties
DC loop resistance 138 /km
Resistance unbalance   2%
Insulation resistance  (500 V)  5000 Mxkm
Capacitance  at 800 Hz  Nom. 43 nF/km
Capacitance unbalance  (pair to ground)  300 pF/km
Mean Characteristic impedance  @ 100 MHz   100 5
Nominal velocity of propagation  0,76c
Propagation delay  450 ns/100 m
Delay skew  15 ns/100 m
Transfer impedance at 1 MHz  10 m /m
at 10 MHz  8 m /m
at 30 MHz  10 m /m
 
Nominal Transmission characteristics

F

Attenuation

NEXT

ACR

Return loss

PS-NEXT

PS-ACR

ELFEXT

PS-ELFEXT

(MHz)

(dB/100m)

(dB)

(dB/100m)

(dB)

(dB)

(dB/100m)

(dB/100m)

(dB/100m)

1

2,0

90

88

87

85

85

82



4

3,6

90

86

27

87

83

85

82

10

5,5

90

84

30

87

81

79

76

16

7,5

90

82

30

87

79

75

72

20

7,7

90

82

30

87

79

73

70

31.25

9,8

90

80

30

87

77

69

66

62.5

14,0

86

72

30

83

69

63

60

100

17,9

83

65

30

80

62

59

56

155

22,4

81

59

26

78

55

57

54

200

25,6

78

52

25

75

49

53

50

250

28,8

77

48

25

74

45

51

48

300

31,6

73

41

23

70

38

47

44

600

45,7

71

25

20

68

22

44

41


 
 
Draka 792661 ī