Installation instructions Melting roof snow English Page 2/2 vers 1.0 110613
Test log
Object:__________________________________
Heating cable type:___________________________
Art-no.:___________________________________
Outside temperature when testing:________________
Fuse no.*
Cable no.* Cable length*
(m)
Insulation resistance
(MΩ)
min 10MΩ
Current
(A)
Sensor resistance values
Sensor
Resistance
measured
Theoretical resistance
Temp/moisture sensor
Brown-yellow
Brown-green
White-grey
Temp sensor Eberle
Temp sensor Max-min
Temp sensor Max-min
Sensor no.*.......
Sensor no.*.......
Sensor no.*.......
Sensor no.*.......
.......
kΩ
.......
Ω
.......
Ω
.......
kΩ
.......
Ω
.......
Ω
.......
(from table below)
.......
20 ohm
.......
∞
for a dry sensor
.......
(from table below)
.......
(from table below)
.......
(from table below)
Theoretical resistance
Ambient temperature
-10°C
±0°C
+10°C
+20°C
+30°C
Temp-moisture brown-yellow
Temp sensor (Eberle)
Temp sensor (max-min)
61 kΩ
8.9 kΩ
750 Ω
35 kΩ
5.6 kΩ
820 Ω
21 kΩ
3.6 kΩ
890 Ω
13 kΩ
2.4 kΩ
960 Ω
8 kΩ
1.6 kΩ
1040 Ω
*The figures are derived from the installation drawing or relation diagram.
The heating cables must have been connected for at least 5 minutes before measuring the current.
The heating cable installation must also be recorded by means of a drawing or diagram that shows cable
lengths, location of boxes, power supply etc.
□
Electric installation executed according
□
Boxes and end connections are positioned
to installation instructions
so that they do not run the risk of water entering, and filled
with sealing compound.
Date:_________________________________________________
Signature:______________________________________________
Print name:_______________________________________
Company:_________________________________________________
Testing
Before using the installation it must be tested and record-
ed in the enclosed test log. If the boxes are to be filled with
moulding compound then the installation must be tested be-
fore filling.
Operation and maintenance
For best results, the sensors should be cleaned before in-
stallation and before each season. Use an appropriate steel
wool to remove any deposits. Leaves and rubbish must be
cleaned from gutters. The cables should also be tested be-
fore each sea
