Standards and Scope
This product is manufactured in accordance with the general industry standard entitled GB14049-93 and it is suitable for dense polyethylene overhead insulated cables as well as the copper-cored or aluminum-cored crosslinked polyethylene overhead power lines with the AC rated voltage at U (Um) to 10 (12) KV, 35 (42) kV.
Characteristic Features
The highest long-term allowable working temperature for the cable’s conductor: (cables with load-bearing structure)
1. It is 90℃ for XLPE insulated cables.
2. It is 75℃ for dense polyethylene insulated ones.
The highest allowable temperature for cable’s short circuit (the longest duration of no more than 5 seconds)
1. It is supposed to be no more than 250℃ for XLPE insulated cables.
2. As for the dense polyethylene insulated ones, the maximum allowable is 150℃.
Moreover, the temperature while laying cables is supposed to be no lower than -20℃ while the minimum bending radius of the cable should be no less than the diameter of the cylinder used in the cable’s bending test.
Model
| Type | Name | Main purpose |
| JKYJ | Copper core XLPE insulated aerial cable | Overhead fixed laying, soft copper products used in transformers leads the cable erection , you should consider keeping a certain distance with trees , cable runs, allowing cables and trees in frequent contact . |
| JKTRYJ | Soft copper core XLPE insulated overhead cables | |
| JKLYJ | XLPE insulated overhead cables | |
| JKY | Copper core XLPE insulated aerial cable | |
| JKTRY | Soft copper core XLPE insulated overhead cables | |
| JKLY | Aluminum core PE insulated aerial cable | |
| JKLYF/B | Aluminum qualities PE insulated aerial cable | Ditto |
| JKLYJ/Q | Lightweight aluminum XLPE insulated aerial cable | When
cable erection, and trees should be considered to maintain a certain distance , allowing only short cables and trees for use in contact . |
| JKLY/Q | Aluminum lightweight polyethylene insulated overhead cables book |
Specification
| Type | cores | Rated Voltage Rated Voltage (kV) | |
| 10 | 35 | ||
| nominal cross section mm2 Nominal section area mm2 | |||
| JKYJ JKTRYT JKLYJ |
1 | 10-300 | 50-300 |
| 3 | 25-300 | / | |
| 3 + K (A) OR3 + K (B) | 25-300 | / | |
| Wherein K25-120 in which. K is 25-120 | / | ||
| JKY JKTRY JKLY JKLYJ/QJKLY/Q |
1 | 10-300 | / |
| JKLYJ/B | 3 | 25-300 | / |
| 3 + K (A) OR3 + K (B) | 25-300 | / | |
| Wherein K25-120 in which. K is 25-120 | / | ||
Notes
( 1 ). K stands for the load-bearing stranded wire while any required cross-sectional area in Table 2 can match the cross-sectional area of its corresponding conductor according to the design requirements of the project.
(2). The capital letter (A) here means it’s a steel-loaded stranded wire. Similarly, the (B) means it’s an aluminum alloy-loaded stranded wire.
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