What are the requirements for grounding galvanized cable tray maker? If the cables laid in the cable tray are already five cores, is grounding still necessary? If so, how should it be done? If it is a 4-core product, how should grounding be done? Should flat steel be laid along the cable tray or should wires be used to connect the cable tray to equipotential bonding at both ends of the cable tray? These are all problems. So what should we pay attention to when grounding the galvanized cable tray maker?

Grounding requirements for bridge frames

The grounding method for the bridge frame should be to ground the main reinforcing bars with a copper-plastic wire no less than 2.5mm thick.

2. The grounding resistance of each cabinet and chassis shall not exceed 1 ohm.

3. The equipment in the computer room adopts two independent grounding methods for the bridge frame, namely the combined grounding of the working grounding. The working grounding resistance shall not exceed 4 ohms, and the combined grounding resistance shall not exceed 1 ohm.

Attention should be paid during the debugging stage:

It is strictly prohibited to power on immediately without inspection.

2. Strictly check whether the equipment installation and line laying of each sub-item project are in accordance with the drawings and documents.

3. Check the installation and wiring conditions of each network device, PBX device and information point one by one. If there are any non-conformities, fill in the quality feedback form and make corresponding records.

After all the equipment and points have been checked for accuracy, power on each device and point one by one for testing.

5. System debugging can only be carried out after the power-on test. And keep good records.

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Do you know what the laying requirements are for galvanized tray price china

In our lives, galvanized tray price china is indispensable. But how much do you know about galvanized tray price china? Do you know what the laying requirements are for galvanized tray price china? This article will give you a brief introduction.

According to the laying requirements of galvanized tray price china, the cable shall meet the requirements of the allowable bending radius of the cable in any laying method and at all changes in the up, down, left and right of all path conditions. The allowable bending radius of the cable and the hot-dip galvanized cable tray should comply with the insulation and structural characteristics requirements of the cable. For self-contained lead-sheathed oil-filled cables, the allowable bending radius can be calculated as 20 times the outer diameter of the cable.

When there are a large number of cables in the same channel, if they are laid on multi-layer supports on the same side, the following regulations shall be followed: power cables, control and signal cables from strong current to weak current, and communication cables shall be arranged in the order of "top to bottom" from high to low voltage levels. When the horizontal channel contains high-voltage cables of 35kV or above, or to ensure that the cables introduced into the cabinet panel meet the allowable bending radius requirements, they should be arranged in the order of "from bottom to top".

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