Q:Seeking: cable tray 100cmx10cm bracket installation spacing requirements

cable bridge and electrical equipment cross, the gap between the distance of not less than 0

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

Cable tray is no 3C certification, generally in the electrical industry needs 3c certification is the wire and cable and circuit switches and protection or connection with electrical equipment installed. Generally only have some special requirements, the state will set 3C certification or other national standard, if not, can only follow its industry standards. On the cable bridge material, the standard is generally: bridge structural steel [YB (T) 10-81] bridge construction with hot-rolled carbon steel (GB714-65)

Q:Does the weak and fire can share a cable tray?

If the drawings do not specify a separate bridge, you can share a bridge, because the fire alarm signal and telephone, broadband belong to the weak system.

Q:How to practice climbing and how to climb the bridge

Information outlet with wall type, ground type, sitting on a variety of types

Q:Cable trough, cable tray, cable tray, cable trench difference. These concepts, I have been confused, please heroes help answer, thank you! More

Z represents the meaning of flame retardant. C represents the flame retardant grade, generally divided into A, B, C three grades, A level is the highest. YJV22 academic name for the copper core XLPE insulated steel tape armored PVC sheathed power cable. Some of the vernacular is: flame retardant C-class armored copper cable

Q:Such as: 200 * 100 * 1.5. Ordinary, galvanized and hot galvanized. How is the price calculated? Is there a formula? More

The price of the single meter is determined by the type of the bridge and the cost of the raw material, as well as other accessories and labor costs. Calculation method: the various types of bridge after the expansion of the area × size × raw material density × raw material cost unit price.

Q:Will the electric wire be able to travel with the ordinary wire?

Puncture clips and T terminals need to remove the cable jacket, but the puncture clip does not peel off the cable core insulation layer, T terminal need to remove the cable core insulation layer. Puncture clip contact surface is small, firm degree of poor, simple and quick construction. T terminal contact surface is large, the installation is firm and reliable, but the construction is relatively difficult.

Q:What are the specifications for cable tray installation? What should I pay attention to when installing?

Cable (YJV-5 * 6) ---- expressed as: cross-linked PVC jacket five core (copper core) cable, the core is 5 6 mm square wire, can be high in safety requirements, or soil resistance Rate is too high, to the use of electrical equipment without reliable grounding, need to lead the protection of ground, you can use five-core cable, which two-color line (generally half yellow and half green) for the ground protection line.

Q:Can the cable bridge be installed above the cable tray? Is there a requirement in the installation specification? anxious! The More

I have a 220V small crane, mainly on the 5th floor, hanging goods, control the small hanging switch wire is too short, I lengthened 20 meters, the switch down to the downstairs, easy to operate, in order to facilitate the small hanging switch Of the loading and unloading, I was in the wire with a car terminal connection, with the time to plug, when not on the pull, (commonly known as: public terminal, female terminal) when the copper terminal in the car is stamping in the 2 square wire The The problem came, since I connected the terminal, no use of a small crane, and later borrowed friends, borrowed, friends reflect the small hanging no effort to send to repair, repair the motor that high-pressure package where the line is not good, and finally The movement of the entire coil are changed, repair or no strength, is not my small crane switch extension cord with the reasons for the car terminal, the current is not enough, or other problems

Q:Whether it can be in the bridge under a layer of 60mm polystyrene board, at home 20mm asbestos insulation, insulation layer wide out of the edge of the bridge 200mm? The The Hurriedly ... can you? More

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