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Shenzhen Chengtiantai Cable Industry Development Co.,Ltd
Chengtiantai Cable (CTT Cable)Since 1983
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Single Core Insulated And Sheathed Cable 21/ 35kv Cable IEC60502-2

Shenzhen Chengtiantai Cable Industry Development Co.,Ltd
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Single Core Insulated And Sheathed Cable 21/ 35kv Cable IEC60502-2

Brand Name : Chengtiantai

Certification : CE, ISO, IEC

Place of Origin : Shenzhen, China (mainland)

MOQ : 500 m

Price : On Request

Payment Terms : L/C, T/T

Supply Ability : 18,000 m per month

Delivery Time : 7/15 working days

Packaging Details : Iron wooden drum or as required

Nominal Voltage : 21/35 kV

Insulation : XLPE

No. of Conductor : single core

Sheath : PVC Compound

Conductor Material : Bare Copper Class 2

Manufacturer : Shenzhen Chengtiantai

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21/ 35 kV Copper conductor XLPE ( Cross-linked Polyethylene ) Insulated PVC Sheathed cable

stranded copper conductor - conductor screen of semiconducting compound - XLPE insulation - core screen of semiconducting compound - copper tape screen - separation tape - PVC sheath

suitable for installation mostly in power supply stations, indoors and in cable ducts, outdoors, underground as well as for installation on cable trays for industries, switchboards and power stations.

Single Core Insulated And Sheathed Cable 21/ 35kv Cable IEC60502-2

STANDER

International:IEC60502-2

National:GB/T 12706.1-2008

CONSTRUCTION:

1. CONDUCTOR

– Bare copper class 2 to IEC 60228, round, multiwire stranded and compact

2. CONDUCTOR SCREEN

– Inner semi-conducting coating

3. INSULATION

– Core insulation of cross-linked polyethylene (XLPE)

4. INSULATION SCREEN

– Outer conductive layer extruded and per-manently welded with the core insulation

Semi-conducting type
– Over the outer semi-conducting layer, a semiconducting tape must be used.

5. METAL SCREEN

– copper tapes helically with a minimum thickness of 0,1 mm.

Separator
– Over the screen as well as under outer sheath, a separating layer must be used (e. g. taping).

6. SHEATH

– Outer sheath of PVC compound

CHARACTERISTICS

Construction characteristics

Conductor shape Circular stranded (RM)
Lead free Yes
Insulation XLPE
Screen copper tape
Material of bedding Separation tape
Outer sheath PVC
Usage characteristics
Packaging Steel Wooden Drum
Minimum installation temperature -20 °C
Max. conductor temperature in service 90 °C
Short-circuit max. conductor temperature 250 °C
Bending factor when laying 20 x D

DIMENSIONS AND SPECIFICATIONS

No. of cores and nominal crosssection Operation
voltage
max.
Nominal
voltage
U0/U
Insulation
thickness
Sheath
thickness
Nominal
value
Outer Ø
approx.
weight
approx.
Current ratings in air 30℃ Current ratings buried 20℃ maximum DC resistance at 20℃
mm² kV kV mm mm mm kg / km A A Ω/km
1 x 50 40.5 21/ 35 9.3 2.1 34.8 1533 245 225 0.39
1 x 70 40.5 21/ 35 9.3 2.1 36.4 1791 305 275 0.27
1 x 95 40.5 21/ 35 9.3 2.2 38.3 2115 370 330 0.19
1 x 120 40.5 21/ 35 9.3 2.2 39.7 2408 430 375 0.15
1 x 150 40.5 21/ 35 9.3 2.3 41.4 2769 490 425 0.12
1 x 185 40.5 21/ 35 9.3 2.3 43.1 3167 560 480 0.10
1 x 240 40.5 21/ 35 9.3 2.4 45.5 3790 665 555 0.08
1 x 300 40.5 21/ 35 9.3 2.5 48.1 4481 765 630 0.06
1 x 400 40.5 21/ 35 9.3 2.6 51.4 5561 890 725 0.05
1 x 500 40.5 21/ 35 9.3 2.7 57.1 6894 1000 825 0.04
1 x 630 40.5 21/ 35 9.3 2.8 60.8 8263 1160 940 0.03


*Dimensions and specifications may be changed without prior notice.

MEDIUM VOLTAGE CABLE TESTING

Routine tests: Sample tests: Type tests:
These non-destructive tests are normally carried out on all lengths manufactured.
- Conductor resistivity
- Spark test on oversheath
- Voltage tests on sheath
- D.C. voltage test on oversheath
These potentially destructive tests are normally carried out on every production run.
- Examination of conductor and dimensions
- Hot set test for XLPE insulation
- Insulation and oversheath thickness
- Four hour voltage test
These destructive tests are normally carried out in addition to the above tests on commencement of a particular cable supply to validate its design.
- Electrical type tests including bending and heat cycle
- Non-electrical type tests including mechanical properties after ageing and tests under fire conditions.

PACKING AND SHIPPING

Packing: steel wooden drum, other as required ; standard delivery length is 300 m

Single Core Insulated And Sheathed Cable 21/ 35kv Cable IEC60502-2

cable drum data

D1=Flange Diameter(mm) W=Useful Width (mm) D2=Barrel Diameter(mm) Approx empty
weight (kg)
number per 20 feet container
1250 750 600 105 kg 28

Our production in numbers

Single Core Insulated And Sheathed Cable 21/ 35kv Cable IEC60502-2

● Cable production started 1983
35 years of cable manufacturing experience

● Sales in 2016 about 500 million USD

100,000 m2 Production area
350 Will-trained employees
● Exported more than 22 countries
2 Manufacturing plant
1 R&D Center

200 Sets Of Testing Equipment

100 Testing Items
8 workshop
40 wire drawing machines
10 bunching machines
28 Extruder system
42 stranding machines
10 Braiding machines

Shenzhen chengtiantai cable operates certified management systems compliant with:
Certificat Information
Single Core Insulated And Sheathed Cable 21/ 35kv Cable IEC60502-2
ISO 9001:2008
Quality management systems

Certificat ISO 9001:2008
- Shenzhen chengtiantai cable industry development Co.Ltd. ;
Certified through Guangdong quality Testing CTC Certification Co.Ltd.;
Valid until 13 January 2019
Single Core Insulated And Sheathed Cable 21/ 35kv Cable IEC60502-2
ISO 14001:2004
Environmental management systems

Certificat ISO 14001:2004

- Shenzhen chengtiantai cable industry development Co.Ltd. ;

Certified through Guangdong quality Testing CTC Certification Co.Ltd.;

Valid until 13 January 2019

Single Core Insulated And Sheathed Cable 21/ 35kv Cable IEC60502-2
OHSAS 18001:2007
Assessment specification for occupational health & safety management systemsenvironmental management systems
Certificat OHSAS 18001:2007
- Shenzhen chengtiantai cable industry development Co.Ltd. ;
Certified through Guangdong quality Testing CTC Certification Co.Ltd.;
Valid until 13 January 2019

Manufacturing Process Of Medium Voltage Power Cable

Single Core Insulated And Sheathed Cable 21/ 35kv Cable IEC60502-2 Single Core Insulated And Sheathed Cable 21/ 35kv Cable IEC60502-2 Single Core Insulated And Sheathed Cable 21/ 35kv Cable IEC60502-2
1. copper rod 2. wire drawing 3. wire stranding
Single Core Insulated And Sheathed Cable 21/ 35kv Cable IEC60502-2 Single Core Insulated And Sheathed Cable 21/ 35kv Cable IEC60502-2 Single Core Insulated And Sheathed Cable 21/ 35kv Cable IEC60502-2
4.Triple Extrusion Insulation 5.Screening Process 6. outer covering Process
Single Core Insulated And Sheathed Cable 21/ 35kv Cable IEC60502-2 Single Core Insulated And Sheathed Cable 21/ 35kv Cable IEC60502-2 Single Core Insulated And Sheathed Cable 21/ 35kv Cable IEC60502-2
7. Sheath Marking 8. Packing 9. Partial discharge Inspection

Some great shot on our manufacturing plant

Located in: Chengtiantai Industrial Park, Guangming New District, Shen zhen P. R. China 518106
Single Core Insulated And Sheathed Cable 21/ 35kv Cable IEC60502-2Single Core Insulated And Sheathed Cable 21/ 35kv Cable IEC60502-2Single Core Insulated And Sheathed Cable 21/ 35kv Cable IEC60502-2Single Core Insulated And Sheathed Cable 21/ 35kv Cable IEC60502-2
Single Core Insulated And Sheathed Cable 21/ 35kv Cable IEC60502-2Single Core Insulated And Sheathed Cable 21/ 35kv Cable IEC60502-2Single Core Insulated And Sheathed Cable 21/ 35kv Cable IEC60502-2
Single Core Insulated And Sheathed Cable 21/ 35kv Cable IEC60502-2

Customer services:

Single Core Insulated And Sheathed Cable 21/ 35kv Cable IEC60502-2

RECOMMENDED ORDERING PARAMETERS

CONTACT

For prompt quotation / supplies please make sure your inquiries and your orders are
securing the following data :

1 - International or Special Standard. (Alternatively, the precise usage of the cable.)
2 - Rated voltage.
3 - Copper or Aluminium conductors.
4 - Size of each conductor.
5 - Insulation material : XLPE or others.
6 - Number and identification of conductors.
7 - Other requirements.
8 - Packing.
9 - Required delivery time.
10 - Required validity.

If this all seems a litle too technical for you, then why not get in touch with us.

We look forward to assisting you in identifying the best products for your specific application and to answer any questions you might have.

Tel:+86 755 6114 5028
Fax:+86 755 61137976
E-mail : cttcable@hotmail.com
Head office:chengtiantai Industrial Park, Lisonglang community, Gongming office, Guangming district, Shenzhen P.R. China 518106

WARRANTY

For a period commencing on the date shipped the Goods to Buyer and continuing for a period of 12 months thereafter.


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