Q:Fiber optic cable line card number of stars

Thousands of generations refers to the experience of a long time

Q:What are the precautions for using the cable mesh and how to use it?

Design time will not be set up, because, when you check the low-voltage lines, but also to the high-pressure corridor. The Design unreasonable ,,, As for the norms, do not know

Q:What is the name of this plastic buckle? Since the US military used to replace handcuffs, it must be very strong, what is the plastic? More

Because the single-core tube, if there is a current flow from the wire. The metal sleeve will produce electromagnetic, and will heat, serious fire, so single-core cable shall not be alone in the steel pipe

Q:In the elevator, on the installation of video lines and telephone lines to go and installation tutorials?

I do civil construction, for the installation is not too understanding, I see, simply talk about. Junction box or weak box is generally fixed on the steel, usually iron, according to the location of the drawings, with steel welding fixed. Inside the sawdust at the end of what, tape sealing. Line pipe to do a good job sealing and sealing the interface, buried directly

Q:How does the geothermal switch above the sensor line pick up?

Find the relevant units ah, such as the mining bureau ah, will be issued by the relevant acceptance report can be produced

Q:Will the power cord wiring with what is called, how the insulation effect

One is four 50 flat one is a 4 * 50

Q:Communication equipment and telephone routine maintenance inspection need to pay attention to what

if the TV screen appears set-top box to start the image and then prompt "no signal" situation, this phenomenon proves that the set-top box and the TV between the audio and video lines (red, yellow, white) connection is basically no problem

Q:The police station asked to install a small hotel to monitor the camera, do not know how to choose the camera, you need to prepare what materials, cost about how much money?

I would like to ask if the buried construction buried in the buried wall and floor casing, how to increase the protective casing, cable wall and floor to install the protection tube is the use of what,

Q:Wire diameter of 15MM current transformer model for the BH-0.66- / 5LMK-0.66SDH-0.66 wear the core is very urgent online Thank you more

When there is a large current through the wire will produce a magnetic field, a little bit of sound.

Q:Whether the wire entry and exit distribution box should be reserved length

If the cable, the current should be appropriate to reduce, take 6-7A more appropriate. Total power 1300-1500W.