Q:How the spacing of the hangers of the bridge is determined

Cable bridge for lighting and the same purpose of less than or equal to 4 square millimeters of the line with the lighting line quota for power or more than 4 square millimeters of the lighting line applied power line quota

Q:Do not have a very professional, can mark the specific layout, specifications can be

Phase correction, the first is to prevent parallel lines in the line when the phase short circuit, the second is in the line automatic device action, because the action time is short or the line is longer capacitive, due to different phase, resulting in the lower three-phase electricity Equipment impact

Q:Due to the environment is not good, the original buried cable damage many times, want to use the bridge, but the overhead conditions are not allowed, the picture below is the hot water pipe, the above is the hot oil pipeline, but also over three doors more

See what you take, if it is mobile hard disk, the general mobile hard disk above have a separate power supply interface, buy a power on the line. And your USB extension cable is the kind of Y-type, two USB jacks should be inserted into the computer's USB interface above. Other U disk class power consumption is very small, there are printers or something, these devices must have a separate power supply. do not worry.

Q:What is the safety distance between the bridge and the bridge?

Because the strong current generated by the electromagnetic field will interfere with the weak line.

Q:I know that CCC is a mandatory product certification in China, CCC certified product catalog: wire and cable (my question is is the cable tray included in this range?) · Circuit switch and protection or connection with electrical equipment installed low-voltage electrical small Power motors · Power tools · Welding machines · Household and similar equipment · Audio and video equipment · Information technology equipment · Lighting equipment · Telecom terminal equipment · Motor vehicles and safety accessories · Motor vehicles Tires · Safety glass · Agricultural products · Latex products · Medical Device Products · Fire Protection Products · Safety Technology Prevention Products · Wireless LAN Products · Decorative Products · Toy Products More

Choose to buy data lines, the key is the quality, quality and better workmanship. Choose which brand does not matter

Q:How the bridge slot is connected to the ladder

Changhong TV picture-in-picture function in the remote control has a picture-in-picture dedicated button area, this area a total of eight buttons, picture in the picture to cancel the key in the CH- on the right, in the picture in the state and then click the button Is to cancel the picture in the picture.

Q:Where is the cable tray used? Fire power plant, coal mine group? For example, civil construction sites, some of the high-rise buildings.

It is said that the two armored PVC control cables are 4x25 square, and the low-voltage cable wears the pipe along the ground. This logo does not seem clear. KVV22 should be armored control cable, then 4 * 25 before FC, can also be understood as four 25-diameter steel pipe.

Q:Cable tray elbow to know the angle and the width and height of the bridge how to calculate the problem of cutting more

ZR is the meaning of flame retardant, flame retardant A, B, C three, ZB on behalf of B-class flame retardant, ZR default C-class flame retardant. Flame retardant properties ZA & gt; ZB & gt; ZC. Flame retardants are currently organic and inorganic, halogen and non-halogen. Organic is based on bromine, nitrogen and red phosphorus and compounds as the representative of some of the flame retardant, inorganic mainly antimony trioxide, magnesium hydroxide, aluminum hydroxide, silicon and other flame retardant system. In general, organic flame retardant has a good affinity in the plastic, brominated flame retardants in the organic flame retardant system occupies an absolute advantage, although the environmental issues on the "criticism" but has been difficult to have other flame retardant system to replace.

Q:Hello to ask a question, high pressure (10KV) bridge and weak bridge can be installed with a horizontal horizontal installation

No. What is the distance between the two bridges? too dangerous.

Q:What is the main use of fireproof bridge?

When installing, install the wire of the power cord or other signal lines to be installed on the wall surface in advance according to the pre-design, and then install the wire.