H07RN-F Wind Energy (Mast) Weather-resistant Power Cable

Product Standard

Enterprise Standard

Application

Wind energy power cable is applicable for flexible, free hanging and fixed installation. In the free-hanging installation environment, the cable can be reversed with fan freely.

The product is applicable from stator of wind power generator to phase and PE line of power distribution cabinet, from rotor of wind power generator to phase line of power distribution cabinet, and from power distribution cabinet to phase and ground line.

Type and Name

Environment Conditions

Altitude: 1000m

Ambient air temperature: Perennial mean temperature: 10℃

Extreme high temperature: 50℃

Extreme low temperature: -42℃

Average relative humidity: normal value for accumulated year: 80%

Earthquake Proof: Horizontal acceleration: 0.2g

Normal acceleration: 0.1g

Safety factor: 1.67

Note: g is acceleration of gravity. g=9.8m/s²

Extreme wind speed:30.0m/s

Cables mainly lay in the air or soil full of water, acid and salt.

Operating Properties

Rated Voltage U0/U: 300/500V

Continues operating temperature: -40~90℃

Min. laying temperature: -15℃

Min. bending radius should be no less than 6 times of outer diameter.

Introduction

Conductor

Conductor should comply with the requirements for Class 5 specified in IEC60228.

The surface of conductor should be bright and clean no grease, no burr or bulge or faulted wire to damage the insulation.

Isolated layer

Every conductor coat with an isolated layer made from appropriated material.

Insulation

The nominal value for thickness of insulation should comply with DIN VDE 0250-4. Meanwhile, the average value of should be no less than nominal value while the thinnest part should be no less than 90%-0.1mm of the nominal value.

Insulation is made from EPR, whose properties should comply with requirements for EI4 specified in DIN VDE 0207-20. The insulation should tightly rapped on stranded insulated core or coating. Meanwhile, the outer sheath should be clean and color evenly.

The cores should be separated by color or figure and in accordance with requirements of DIN VDE 0293.

Sheath

The nominal value for thickness of sheath should comply with DIN VDE 0250-4. Meanwhile, the average value of should be no less than nominal value while the thinnest part should be no less than 85%-0.1mm of the nominal value.

Sheath is made from CR or similar elastomer, whose properties should comply with requirements for EM2 specified in DIN VDE 0207-21. The sheath should tightly rapped on stranded insulated core or coating. Meanwhile, the outer sheath should be clean and color evenly.

The outer diameter should comply with requirements of DIN VDE 0250-4 and Q/321023KLA130.

Finished Cables

The ohmic value of conductor should be no more than specifications in IEC60228 at 20℃.

Finished cables and insulated cores should withstand the rated AC voltage test of 2500V, and no breakdown in five minutes.

Mechanical and physical properties for finished cable insulation should comply with requirements of DIN VDE 0282-4.

Mechanical and physical properties for finished cable sheath should comply with requirements of DIN VDE 0282-4

Finished cable should withstand the low temperature test at -40℃.

Finished cable should withstand the burning test specified in IEC60332.1 and EN50265-2-1.

Finished cable should withstand the oil-resist test specified in EN 60811-2-1.

Finished cable should withstand anti-torsion test whose torsion angel is no less than +/-150°/m and number of torsion is no less than 3600 times( four times of positive and negative rotation equal one). After the test, no cracking could be appeared on conductor and sheath.

Table for Engineering Data for Finished Cables

Inspection Rules

Products can leave factory only after passing examination of technology department. Each package should be shipped with the product quality inspection certificate.

Products should inspect according to DIN VDE 0282-4. If it fails for the first time in sample inspection, then take another two samples to examine the failed project. If the two samples are acceptable, then the products are acceptable, false otherwise. The number of samples is accepted by both sides, or decided by manufacture at the time of no requirements from the buyer.

Mark、Packing、Transport and Storage

Mark

There should be marks of maker, type, nominal cross-section area, voltage on the cable. The marks should comply with the requirements for conductor and color specified in DIN VDE 0293-308.

Marks shall be legible, not easy to erase. The writing should be clearly visible after 10 times graze in absorbent cotton cloth.

Packing

Cables can be packed both in coils and in circles. Cables in circle should be packed on cable specified in JB/T8137. Cables should be positive sealing, for those outside the circle, protective cover should be made. And the length of outside should be no more than 300mm

Tags should identify:

① Maker or trade-mark

② Type and specifications mm²,V

③ Lengths m

④ Manufacturing Date: Year Month

⑤ Product Standard Code

⑥ Correct direction for circles

Transport and Storage

The cables should avoid high temperature and cable circle does not allow flat.

Forbid throwing circles with cable from high attitude and mechanical damage.

Forbid lifting several circles at the same time. Circles should be put firm with appropriate methods to avoid tip over.