Cable laying allows the laying of steel pipe laying, and insulated wire according to the regulations 8.3.9 should not wear metal pipe in the outdoor direct laying. If necessary, for the secondary load and the line is less than 15m, can be used to wear metal pipe laying, but should be used not less than 2mm wall thickness of the steel pipe, and take a reliable waterproof, anti-corrosion measures. Personal understanding is because: cable laying through the metal pipe through the thicker, to achieve water and corrosion requirements, and wire room wear metal pipe laying, the metal pipe is thin, may not reach the water and corrosion requirements? Or cable insulation has 2 layers, and the wire is only 1 layer, so buried in the outdoor pipe, the more humid environment, the cable can not wire? Seek answers. Thank you. More
Waterproof casing in the use of the process, many customers are always worried about waterproof casing leakage, so now we talk about waterproof casing plug and fill the right way. We in the daily return visit to receive customers, found that some construction units to install and use the waterproof casing is not correct, and many supervision is not very understanding of this, especially in the treatment of waterproof casing on the issue of blocking, if Improper handling, it is easy to cause leakage, and then there are quality problems. Therefore, Kwong Yuen drainage experts with the production of waterproof casing installation summed up the following waterproof casing plug and fill the correct method, so that the units in the combination of norms and Atlas can be based on reference.
Connect the set-top box to the TV with a trumpet audio and video line One end of the control color were inserted into the set-top box after the audio and video output, the other end of the same method into the TV audio and video input Cable TV set-top box installation Note: TV audio and video port generally have a number of groups, divided into audio and video input and audio and video output, each group by AV AV ¨¨¨ or input audio and video cable into which group of input on the use of TV which video to watch digital TV, such as the insertion of the "audio and video input", and then insert the audio and video input, Enter 2 ", will TV to AV2 watch digital TV programs Check that the smart card is properly loaded in the set-top box The correct placement of the smart card is: smart card face up, red arrow inward Set-top box front panel has a card interface, the smart card can be placed on the right Turn on the TV and set-top box power and use the video switch on the TV remote control to bring the TV to the correct video Cable TV set-top box installation details: TV remote control video conversion keys are generally marked as "AV" or "AV / TV" or "video" or "TV / video" or "→ ⊙" 5 TV screen appears on the set-top box to play the content, if prompted to search for programs in accordance with the instructions or instructions to search for programs, and then you can watch the normal
Cable TV set-top box installation Note: cable TV terminal box with TV and FM two output ports to be connected to the TV output port; set-top box after the RF input port is helically available set-top box accessories in the adapter Transfer
Connect one end of the white cable TV cable to the RF input terminal at the other end of the cable TV terminal box
