5.1電纜的敷設施工方法: cable laying method
垂直干線的預制分支電纜一般應按以下要領進行敷設; Vertical trunk pre-fabricated branched cable can be laid according to the
following points:
(1)將電纜盤放在放線架上(通常電纜盤放在樓下);put cable tray on the pay-offrack (cable tray is usually put downstairs)
(2)提升電纜用的繩索通過牽引機與電纜連接;cord used to upgrade cable connect to cable by draw machine
(3)開動牽引機將電纜提升上去; run draw machine to upgrade cable
(4)提升用的電纜網套到達房頂時,將網套掛在事先準備好的吊鉤上;after cable net used for upgrading reaches the roof,put cable net on the advance prepared lifting hook,
(5)對中間部位進行固定;fasten middle section ofcable
(6)將分支線端頭與電流表或斷流器相接;connect branch terminal with amperemeter or circuit breaker
(7)進行橫相干線或主干線板連接。connect cross direction trunk or main trunk board
5.2施工注意事項:construction attention rule
(1)事先確認運輸方法;confirm distribution method in advance
(2)確認分支部是否能安全通過孔洞;confirm if branch can safely pass cavern
(3)采取預防措施防止提升過程中分支部在貫通孔洞時損傷;adopt precautionary measures to avoid damage when branch passing cavern during upgrading process
(4)提升過程中不要對分支電纜施加張力;don’t put force on branch cab]e when upgrading
(5)使用電纜重量4倍以上強度的繩索;use cord whose strength is 4 multiple than cable weight
(6)事先考慮避雨方法及空盤處理方法:consider rain shield method and blank panel handling method in advance
(7)電纜提升完后,應立即將電纜固定;immediately fasten cable after lifting cable
(8)電纜禁止直接使用鐵質夾具。forbidden to use iron chucking directly
6、訂貨須知 0rdering notice
訂貨時請向生產廠家提供以下資料 Please supply the following information to producing factory when ordering
(1)干線電纜的型號、導體截面及長度。type oftrunk cable,conductor section and length
(2)分支電纜的型號,導體截面及長度。type ofbranch cable,conductor section and length
(3)是否需要對電纜進行末端處理。ifneed to do terminal treatment to cable
(4)配電系統圖及配電方式(如3相5線制等)。distribution system map and distribution method
(5)是否需要配套安裝附件等。ifneed to assort accessory |