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D, cross-linked polyethylene insulated power cable

时间:2017-07-13 14:53:40   来源:   作者:   点击:


 
Details:
1. Crosslinked polyethylene insulated power cable
Standard: gb12706.3-91
Using feature: when the environment temperature is not lower than 0 ℃, laying cable head is not restricted.
The minimum bending radius of the cable is specified as follows: single core: 20 (d + d) plus or minus 5%; Three core: 15 (d + d) plus or minus 5% (d is the actual outer diameter of cable, d is the actual outer diameter of conductor).
The operating temperature of the cable, PVC sheathed does not exceed 90 ℃; PE sheathed does not exceed 80 ℃.
Cable conductor of chemical crosslinking polyethylene insulation rated highest temperature is 90 ℃, the highest irradiation crosslinking polyethylene insulation rated temperature is 105 ℃, when the conductor short-circuit temperature (the longest 5 s) does not exceed 250 ℃, the cable grounding fault duration is as follows:
Category 1: used for grounding fault less than 1 minute;
Category 2: for the first class, except for a single grounding fault time of less than 2 hours, maximum no more than 3 hours.
One or two single-core cables are not allowed to be laid in an iron pipe.
2. Low-smoke halogen-free flame retardant cross-linked polyethylene insulated power cable
Application: this product is suitable for fixed installation of power station, subway, tunnel, high-rise building, theater, petrochemical industry, etc. Power transmission and distribution system with rated voltage of 0.6/1kv. The performance of the cables meets the requirements set out in the standards of iec 332, IEC754 and IEC1034 in addition to the gb1276-91 standard.
Length of delivery: the delivery length of the cable is not less than 100 megabytes, allowing the delivery of short-circuit cable with a length of not less than 30m. The quantity shall not exceed 10% of the total delivery amount, or any length of delivery shall be made according to the agreement of the parties. The measurement error of the delivery length shall be plus or minus 0.5%.
The end of the cable should be reliably sealed, and the end of the cable protruding to the outside should be secured. The length should be no less than 300mm.
Short circuit cable with a weight of no more than 80kg.
 

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