TABLE - 60
(FOR INSTALLATION IN GROUND ONLY) GROUP RATING FACTORS FOR MORE THAN ONE TWIN OR MULTI-CORE ARMOURED OR UNARMOURED CABLES IN HORIZONTAL FORMATION LAID IN DIRECT GROUND.
No. of cables
2
3
4
5
6
7
8
9
10
11
12
Cables laid touching
0.81 0.70 0.63 0.59 0.55 0.52 0.50 0.48 0.47 0.45 0.44
Cables laid 15 cm apart
0.87 0.78 0.74 0.70 0.68 0.66 0.64 0.63 0.62 0.61 0.60
Cables laid 30 cm apart
0.91 0.84 0.81 0.78 0.77 0.75 0.75 0.74 0.73 0.73 0.72
Cables laid 45 cm apart
0.93 0.88 0.86 0.84 0.83 0.82 0.81 0.81 0.80 0.80 0.80
Cables laid 60 cm apart
0.95 0.90 0.89 0.87 0.87 0.86 0.86 0.85 0.85 0.85 0.84
TABLE - 61
(FOR INSTALLATION IN GROUND ONLY) GROUP RATING FACTORS FOR MORE THAN ONE CIRCUITS OF 3 SINGLE CORE ARMOURED OR UNARMOURED CABLES IN TREFOIL TOUCHING,HORIZONTAL FORMATION LAID IN DIRECT GROUND
No. of cables
2
3
4
5
6
7
8
9
10
11
12
Cables laid touching
0.78 0.66 0.61 0.56 0.53 0.50 0.49 0.47 0.46 0.44 0.43
Cables laid 15 cm apart
0.83 0.73 0.68 0.64 0.61 0.59 0.57 0.56 0.55 0.54 0.53
Cables laid 30 cm apart
0.88 0.79 0.73 0.73 0.71 0.69 0.68 0.67 0.67 0.66 0.66
Cables laid 45 cm apart
0.91 0.84 0.81 0.79 0.78 0.76 0.76 0.75 0.75 0.74 0.74
Cables laid 60 cm apart
0.93 0.87 0.85 0.83 0.82 0.82 0.81 0.81 0.80 0.80 0.80
TABLE - 62
(FOR INSTALLATION IN DUCT ONLY) GROUP RATING FACTORS FOR MORE THAN ONE TWIN OR MULTI-CORE ARMOURED OR UNARMOURED CABLES IN HORIZONTAL FORMATION LAID IN SINGLE WAY DUCTS
No. of cables
2
3
4
5
6
7
8
9
10
11
12
Cables laid touching
0.90 0.83 0.79 0.75 0.73 0.71 0.70 0.68 0.67 0.66 0.66
Cables laid 30 cm apart
0.93 0.88 0.85 0.83 0.82 0.81 0.80 0.79 0.79 0.78 0.78
Cables laid 45 cm apart
0.95 0.91 0.89 0.88 0.87 0.86 0.85 0.85 0.85 0.84 0.84
Cables laid 60 cm apart
0.96 0.93 0.92 0.91 0.90 0.89 0.89 0.89 0.89 0.88 0.88
Cables laid 60 cm apart
0.95 0.90 0.89 0.87 0.87 0.86 0.86 0.85 0.85 0.85 0.84
TABLE - 63
(FOR INSTALLATION IN DUCT ONLY) GROUP RATING FACTORS FOR MORE THAN ONE CIRCUITS OF 3 SINGLE CORE ARMOURED OR UNARMOURED CABLES IN TREFOIL TOUCHING ,HORIZONTAL FORMATION LAID IN SINGLE WAY DUCTS
No. of cables
2
3
4
5
6
7
8
9
10
11
12
Cables laid touching
0.87 0.78 0.74 0.70 0.69 0.67 0.66 0.65 0.64 0.63 0.63
Cables laid 45 cm apart
0.91 0.84 0.81 0.79 0.78 0.76 0.76 0.75 0.75 0.74 0.74
Cables laid 60 cm apart
0.93 0.87 0.85 0.83 0.82 0.82 0.81 0.81 0.80 0.80 0.80
49 MKK XXS002-02/01-12-2014
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