18
2. Indoor power source, communication wire between indoor and outdoor, among indoors
a. Indoor power cable model: H05VV-F;
b. Power cable and communication wire must be fixed firmly.
c. Each indoor must be earthed well.
d. When power cable exceeds the range, thicken it appropriately.
e. Shielded layer of communication wires must be connected together and be earthed at single
point.
f. Communication wire total length cannot exceed 1000m.
item
power
cable
section
(mm2)
wire
length
(m)
<
10
≥
10 and
<
15
≥
15 and
<
22
≥
22 and
<
27
2
3.5
5.5
10
20
25
30
40
20
30
40
50
20A, 30mA, below 0.1s
30A, 30mA, below 0.1s
40A, 30mA, below 0.1s
50A, 30mA, below 0.1s
2-core
×
(0.75-2.0mm
2
)
shielded wire
indoor total
current (A)
rated current
of overcurrent
breaker(A)
communication wire section
outdoor/indoor
(mm
2
)
indoor/indoor
(mm2)
rated current of residual
current circuit breaker(A)
leakage current (mA)
response time(s)
3. Communication wire for wired controller
a. Shielded layer of communication wire must be earthed at one end.
b. The total length cannot exceed 600m.
〈
100
≥
100 and
<
200
≥
200 and
<
300
wire length(m)
wire spec
0.3mm
2
×
(3-core) shielded wire
wire length(m)
wire spec
0.5mm
2
×
(3-core) shielded wire
0.75mm
2
×
(3-core) shielded wire
≥
3
00 and
<
4
00
≥
4
00 and
<
6
00
1.25mm
2
×
(3-core) shielded wire
2mm
2
×
(3-core) shielded wire
Electric wiring and the application
