MICU
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MICU

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Product Description

Introduction of MICU​

Mineral insulated heating cable of copper sheath series can meet the needs of high temperature condition and heat tracing of long-distance transportation pipeline. The maximum withstand temperature of the copper sheathed heating cable (MICU) provided by MICH can reach up to 250℃. Conductor resistance value ranges from 1.7-2000Ω/km. For the occasion of anti-corrosion or buried application, high density polyethylene (HDPE) outer sheath ( cable known as MIHC) is needed to be added. MIHC’s withstanding maximum temperature can be up to 90℃. Mineral insulated heating cable possesses excellent mechanical strength. The heating cable of series resistance provided by MICH can meet the requirements of different power levels.

 

Cable Structure of MICU​

 

Application of MICU​

Copper sheathed heating cable (MICU)

Maximum output power(W/m)

FreezingPrevention for metal gutters and downpipes

49

FreezingPrevention fornon-metal gutters and downpipes

16

Vessel and piping process temperature maintaining

59

Freezing Prevention for metal containers and pipes

59

Metal roofsnow-melting

49

High-density polyethylene outer sheathed copper sheathed heating cable (MIHC)

 

FreezingPreventionfor metal containers and pipes

26

FreezingPreventionnon-metallic containers and pipes

13

Snow melting on asphalt slopes

82

Non-metallic roofice or snowmelting

26

FreezingPreventionfor metal gutters and downpipes

26

FreezingPreventionfor non - metallic gutters and downpipes

16

Concrete floor heating

33

Risingordefrostingpreventionforcold storage ground

23

FreezingPreventionfor metal containers and pipes

99

Note: when heating cables are used for heat tracing of vessels and pipes, the maximum output power must be controlled to ensure that the sheath temperature does not exceed its maximum allowable temperature or the spontaneous combustion temperature of the area (for hazardous areas).

 

Specification of MICU​

1.Heating cable instruction code

  


2.Cable Code


Table 1  Structure of Cable Element of MICU​

Note: Model C, F and G are suitable for being used at temperature under 65℃

 

Sheet 2 Mineral insulated heating cable specification(600V)

Cable Code

Diameter

HDPEDiameter

Standard resistance value at+20℃

MaximumProduction Length

Unit weight

mm

mm

Ω/m

m

kg/km

16C1.7

8.2

10

0.0017

350

366.54

16C2.2

7.6

9.4

0.0022

380

307.77

16C2.9

7.0

8.8

0.0029

400

264.45

16C4

5.9

7.7

0.004

600

190.88

16C7

5.3

7.1

0.007

600

154.08

16C11

4.9

6.7

0.011

600

132.25

16C13

4.6

6.4

0.013

600(300)☆

125.7

16C17

4.6

6.4

0.017

600(300)☆

117.16

16C21

4.6

6.4

0.021

600(300)☆

111.9

16C25

3.7

5.5

0.025

600(480)☆

68.83

16C33

3.7

5.5

0.033

600(480)☆

63.76

16C40

3.4

5.2

0.04

600(560)☆

58.87

16C63

3.2

5

0.063

600

51.47

16K80

6.8

8.6

0.08

370(140)☆

254.18

16K100

5.2

7

0.1

450(240)☆

162.11

16K140

4.9

6.7

0.14

600(270)☆

122.55

16K197

4.45

6.25

0.197

600(330)☆

111.32

16K220

4.5

6.3

0.22

600(330)☆

102.89

16K315

4.3

6.1

0.315

600(350)☆

91.44

16K345

4.2

6.0

0.345

600(370)☆

85.9

16K450

4.0

5.8

0.45

600(400)☆

80.73

16K630

4.0

5.8

0.63

600(400)☆

77.26

16K800

3.5

5.3

0.8

600(530)☆

61.48

16K1250

2.8

4.6

1.25

600

40.83

16K2000

2.8

4.6

2.0

600

38.96

  

Table 3 Heating Cable Specification (600V Double Cores)       

Cable Code

Diameter

Nominal resistanceat+20℃

Maximum manufacturing length

Unit weight

mm

Ω/m

m

kg/km

26C3.4

12.9

0.0034

150

783.76

26C4.4

12.2

0.0044

160

701.56

26C5.8

11.3

0.0058

170

606.16

26C8.6

9.90

0.0086

180

451.43

26C11.4

9.30

0.0114

200

400.05

26C13.8

9.00

0.0138

210

375.20

26C17.2

8.60

0.0172

220

344.90

26C23

8.00

0.023

250

303.25

26C34.4

7.50

0.0344

280

269.20

26C49.2

7.10

0.0492

300

243.84

26K240

9.90

0.24

180

451.43

26K320

9.30

0.32

200

400.05

26K384

9.00

0.384

210

375.20

26K480

8.60

0.48

220

344.90

26K640

8.00

0.64

250

303.25

26K960

7.50

0.96

280

269.20

 

Table 4 Heating Cable Specification (300V Double Cores)

Cable Code

Diameter

Nominal resistanceat+20℃

Maximum manufacturing length

Unit weight

mm

Ω/m

m

kg/km

23C3.4

12.0

0.0034

200

708.10

23C4.4

11.3

0.0044

220

629.07

23C5.8

10.4

0.0058

240

537.73

23C8.6

9.00

0.0086

260

392.56

23C11.4

8.40

0.0114

280

343.89

23C13.8

8.00

0.0138

300

314.57

23C17.2

7.60

0.0172

320

286.27

23C23

7.10

0.023

340

252.98

23C34.4

6.60

0.0344

360

221.19

23C49.2

6.20

0.0492

380

197.64

23K160

10.4

0.16

220

508.37

23K240

9.00

0.24

240

392.56

23K320

8.40

0.32

265

343.89

23K384

8.00

0.384

280

314.57

23K480

7.70

0.48

300

291.91

23K640

7.10

0.64

320

252.98

23K960

6.50

0.96

350

216.11

Note: the resistance value of 2-core cable in the above table is the measured value after the ends are twisted (i.e., single-core resistance X2);

For the use of 660V voltage occasions, please contact our company professionals;

Mark of (300)☆ is a recommended production length by MICH

 

Table 5 terminal specifications of MICU​

 

Model: A, D, E

Model: B

 

Maximum Voltage(V)

Maximum Current(A)

Terminal Specification

Maximum Voltage(V)

Maximum Current(A)

Terminal Specification

Maximum Voltage(V)

 

 

 

 

600

15

E2

20

E1

15

E1

600

20

E2

25

E2

20

E1

600

30

E3

40

E2

30

E2

600

50

E3

70

E2

50

E2

600

70

E3

100

E3

70

E2

Note 1: E1 means 1/2 "NPT;E2 means 3/4 "NPT;E3 represents 1 "NPT (taper thread);Additional connection thread requirements are available.

Note 2: the length of cold end cable with standard configuration is 2 meters. If you increase or decrease of length required, please contact our professional personnel.

 

Corresponding reference table between the output power and sheath temperature

 

Note: when applying a copper conductor heating cable, please pay attention to the conversion of its heated hot resistance and unheated cold resistance.   

 

Anticorrosive specification of MICU​

Material

MICU

 MIHC

Sulfate

Notrecommend

Excellent

Hydrochloric acid

Notrecommend

Excellent

Hydrofluoric acid

Acceptable

Acceptable

Phosphate

Acceptable

Acceptable

Carbonate

Notrecommend

Acceptable

Organic acid

Acceptable

Not recommend

Alkali metal

Acceptable

Acceptable

Sea water

Notrecommend

Acceptable

Chloride

Data checking required

Acceptable

 

Explosion-proof instructions of MICU

MIAL series heating cable with explosion-proof terminal, can be used in potential explosive environment. Authenticated by the Chinese CQST, in accordance with Chinese GB3836 explosion-proof electrical standards, they can be applicable to Ⅱ A, Ⅱ B, Ⅱ C (C1D2) level of explosion-proof electrical equipment.





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