Airfield Lighting
Safegate Group
Manual
Date: October 2016
Ref: SL-RE-E_SL-RT-E_SL-RN-E_SL-RTN-E_SL-SB-E
Version: 1.4
Page 10 of 42
ASP system communication margin = 10 W
Note:
This wattage is not being used but needs to be available for the power line
communication.
Total load 27 W + 2 W + 10 W =
39 W
Max total load for a 150 W transformer is 45 W at 2 A.
Result:
Transformer rating should be at least
150 W
Note: Using too high power rate transformers leads to very inductive load that lowers
usable power of CCR.
1.2.3.3
Transformer selection suggestions
Cable area
2.5 mm
2
Cable area
4 mm
2
Total load
(W)
Transformer
(W)
SafeLED
Unidirectional
RT-E, RN-E, SB-E
<50m
40-50
65
50-100m
70-80
100
<50m
30-40
45
50-100m
50-60
65
SafeLED
Bidirectional
RE-E-B, RTN-E, RN-E
<50m
51-58
65
50-100m
81-88
100
<50m
41-48
65
50-100m
61-68
100
SafeLED
Bidirectional
Circular Guidance
RE-E-O
<50m
58-67
100
50-100m
88-97
100
<50m
48-57
65
50-100m
68-77
100
SafeLED IQ
Unidirectional
RT-E, RN-E, SB-E
<50m
50-60
65
50-100m
80-90
100
<50m
40-50
65
50-100m
60-70
100
SafeLED IQ
Bidirectional
RE-E-B, RTN-E, RN-E
<50m
61-68
100
50-100m
91-98
100
<50m
51-58
65
50-100m
71-78
100
SafeLED IQ
Bidirectional
Circular Guidance
RE-E-O
<50m
68-77
100
50-100m
98-107
150
<50m
58-67
100
50-100m
78-87
100
SafeLED IQ (2A)
Unidirectional
RT-E, RN-E, SB-E
<50m
150
50-100m
150
<50m
150
50-100m
150
SafeLED IQ (2A)
Bidirectional
RE-E-B, RTN-E, RN-E
<50m
150
50-100m
150
<50m
150
50-100m
150
SafeLED IQ (2A)
Bidirectional
Circular Guidance
RE-E-O
<50m
200
50-100m
200
<50m
200
50-100m
200