BSM11 series reinforced cast fire-resistant Bus duct

Technical parameters of BsM11 Bus duct

 EXECUTIVE STANDARD  IEC61439-1:2011 GB7251.1-2013 GB7251.6-2015

  Ambient temperature

(℃)

-5/+40(mean temperature within 24h is up to 35℃)

   Altitude

Up to 2000M

  Protective grade

lp68

 Unitlength

(m)

Optional among 1.62.53.26(0.5-6)

Rated insulation voltage ul

(V)

660/1000

Ratedworking voltage ue

(V)

380/660

  Frequency

(HZ)

50-60

   Rated current In

(A)

400

630

800

1000

1250

1600

2000

2500

3150

4000

5000

   ResistanceR20

(uΩ/ml）

111

74.1

59.2

44.5

37

31

22.2

14.2

10.9

9.1

7.4

  ReactanceX20

(uΩ/m)

63.9

56.5

46.3

42.9

38.7

31.9

26.8

23.7

15.2

12.9

10.2

    Total reactance 720

(uΩ/m)

278

231

182

168

152

132

29

122

89

89

61

Voltage drop(power factor cos=0.9h)

(mV/m

64.2

63.2

65.3

67.5

61.6

67.8

65.2

63.9

59.6

61.3

63.4

Ra eds              ths

(KA)

30

30

50

50

80

Rated peak withstanding current=Ipk

(KA)

63

105

176

       Temperaturerise

(K)

≤70

   Insulation resistance

(MΩ)

≥20

   Electrical interval

(mm)

≥10

  Creepage distance

(mm)

≥12

Protectivecircuit validity PE

(Ω)

<0.02

 Dielectric property

50Hz,3750V/Imin no breakdown or flashover

Installationway

Vertical or horizontal

Quantity of plug port

Minimum 0.5/m(can provide double-layer plugging)

Maximum fixed interval

(m)

4

4

3

3

   Balance load

(kg/m)

20

20

25

30

  Centralized load

(kg)

90

90

90

90