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額定電壓1kV至35kV擠包絕緣電力電纜
- 行業中，通常將額定電壓1~3kV的稱為低壓電纜，額定電壓6~30kV的稱為中壓電纜，額定電壓35kv的稱為高壓電纜
一、額定電壓1kV至35kV擠包絕緣電力電纜
Power cables with extruded insulation for rated voltage from 1kV to 35kV
行業中，通常將額定電壓1~3kV的稱為低壓電纜，額定電壓6~30kV的稱為中壓電纜，額定電壓35kv的稱為高壓電纜。
產品可按客戶需求生產具有阻燃、耐火、無鹵低煙等特殊性能，其性能符合GB/T 19666-2019標準中阻燃、耐火、無鹵低煙特性要求。
In the industry, the rated voltage of 1 ~ 3KV is usually called low voltage cable, the rated voltage of 6 ~ 30KV is called medium voltage cable, and the rated voltage of 35kV is called high voltage cable.
The products can be produced according to customers' requirements, with flame retardant, fire resistant, halogen-free low smoke and other special properties, and their properties meet the requirements of flame retardant, fire resistant, halogen-free low smoke in GB / T 19666-2019.
二、執行標準（Executive standard）
GB/T 12706.1~.3-2020
三、使用特性（Usage characteristics）
1、正常運行時，交聯聚乙烯絕緣電力電纜導體最高溫度為90℃，聚氯乙烯絕緣電力電纜導體最高溫度為70℃。
1. During normal operation, the maximum temperature of XLPE insulated power cable conductor is 90 ℃, and that of PVC insulated power cable conductor is 70 ℃.
2、短路時（最長持續5秒），交聯聚乙烯絕緣電力電纜導體最高溫度為250℃，聚氯乙烯絕緣電力電纜導體最高溫度為160℃。
2. The maximum temperature of XLPE insulated power cable conductor is 250 ℃ and PVC insulated power cable conductor is 160 ℃ in case of short circuit (lasting for 5 seconds at most).
3、電纜敷設不受落差限制，敷設時環境溫度不應低于0℃。
3. The cable laying is not limited by the drop, and the ambient temperature should not be lower than 0 ℃.
4、敷設時電纜的最小彎曲半徑：單芯電纜不小于20（D+d）,多芯電纜不小于15（D+d）（D為電纜外徑，d為導體直徑）
4. Minimum bending radius of cable during laying: not less than 20 (D + D) for single core cable and not less than 15 (D + D) for multi-core cable (D is the outer diameter of cable and D is the diameter of conductor)
5、額定電壓大于6kV電纜安裝時，必須將絕緣屏蔽按電纜附件安裝尺寸進行剝離，并清理干凈，以防出現不必要的事故。
5、When installing cables with rated voltage greater than 6kV, the insulation shield must be stripped according to the installation size of cable accessories and cleaned to prevent unnecessary accidents.
四、產品結構（product mix）
·低壓電纜（Low voltage cable）
·中高壓電纜（Medium and high voltage cable）
五、產品常用型號、名稱及規格（Common models, names and specifications of products）
