上海贵族宝贝交流_上海千花坊_夜上海品茶分享

Power cable installation equipment

Function, structure and characteristics of power cable connection equipment power cable branch box: (1) Function: to complete the convergence and tapping of cable lines in the distribution system, but generally it is not equipped with switches, and it is not equipped with special electrical connection equipment with secondary auxiliary configuration such as control measurement. (2) Structure: there is no switchgear in the branch box
Published on: July 27, 2016 Number of hits: 157

Role of power loop network unit

Function, structure and characteristics of power cable ring network unit: (1) Function: power cable ring network unit, also known as ring network cabinet or switch, is used for MV power cable segmentation. Contact and tap load. The power cable ring network unit can be divided into indoor and outdoor types according to the applicable places, and can be divided into integral type and interval type according to the structure. （
Published on: July 27, 2016 Number of hits: 168

Route design -- optimize cable route scheme

For power cable lines with anti-interference requirements, anti-interference measures shall be taken according to power cable design or equipment manufacturer requirements. For lighting poles equipped with lightning rods, the cable laying shall meet the relevant requirements of grounding devices. The cable entering the building shall be equipped with a protective barrier. When entering the panel (cabinet) and penetrating the pipe, the inlet and outlet shall be closed, and the pipe orifice shall be sealed& n
Published on: July 27, 2016 Number of hits: 105

Line test, acceptance and operation

Test and acceptance of power cable put into operation (I) Test of power cable In addition to handover test and preventive test, insulation test shall also be carried out during construction to identify and check the cable quality and process quality of each link of construction. Before laying, test on the cable reel to identify the cable cup; Test after and before laying
Published on: July 27, 2016 Number of hits: 108

What are the necessary works for cable network operation

Before running the cable network, the security work must be done well. 1. Load monitoring. General power cable lines specify the maximum current value according to the cross-sectional area of the cable conductor, insulation type, etc. Various instruments are used to measure the load current of the wire line or the cable skin temperature, etc., as the main load monitoring measures, to prevent the cable insulation from exceeding the allowable maximum temperature and shortening the cable
Published on: July 27, 2016 Number of hits: 116

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