Analysis of the reasons why the Rittal Rittal cabinet air conditioner shows OL

Industrial wires and cables include single-core wires and cables, rubber cables, shielded control cables, flame-retardant cables, fire-resistant cables, etc. Single-core wire and cable It means that there is only one conductor in the insulation layer, the common BV wire, and B represents the wiring; V stands for insulating polyvinyl chloride. Suitable for AC ...

Which electrical equipment must be grounded or zeroed? Answer: (1) The base and shell of generators, transformers, motors, high and low voltage electrical appliances and lighting appliances; (2) the secondary coil of the transformer; (3) the framework of the switchboard and the control panel; (4) Transmission device of electric equipment ...

1. The cabinet door is 25mm from the ground and 2.5mm thick mounting plate, and there are 20mm wide U-shaped curved edges on both sides, which makes the mounting plate stronger and easy to handle. 2. The three cable introduction cover plates at the bottom of the box can be replaced with each other, which is easy to move, easy to import cables, and easy to open holes into the line. 3 ...

The temperature setting of the Rittal air-conditioner can be operated via a remote control or a panel. The specific steps are as follows: 1. Turn on the power of the air conditioner and press the "on/off" button on the remote control or the power switch on the panel. 2. Press the "Mode" button on the remote control or the ...

(1) Classified according to the requirements of the power supply system 1) The first-level power distribution equipment is collectively referred to as the power distribution center. They are centrally installed in the substations of the enterprise, and the electrical energy is distributed to the subordinate distribution equipment in different locations. This level of equipment is close to the step-down transformer, so the electrical parameters are high.

What are the types of electric shocks? Answer: Direct electric shock, indirect contact electric shock, induced voltage electric shock, lightning electric shock, electrostatic electric shock. What are the organizational measures to ensure safety when working on electrical equipment? Answer: work ticket system, operation ticket system, inventory site and comprehensive ...

In electrical switchgear, the external connection of high-current frame circuit breakers (ACBs) is usually achieved by connecting multiple cables per phase in parallel. When the conventional flat copper bar scheme is adopted, it is necessary to cut a number of bolt fastening holes on the standard copper bar to complete the connection of the cable.

1. External force damage. Judging from the operation analysis in recent years, especially in Haipudong, which is developing rapidly, a considerable number of cable failures are caused by mechanical damage. For example, the cable laying and installation is not standardized, which is easy to cause mechanical damage; Engage in direct burial on cables ...

The operating voltage of the cable Generally speaking, there is a certain relationship between the operating voltage of the cable and the rated voltage. If some cable lines are not in use, they must be connected to the power grid to ensure that the cable lines are not exposed to moisture. When the neutral point is not grounded ...

41. Can power lines be divided into according to the erection method? A: Overhead power lines and cable lines. 42 What is a protective relay? Answer: It can reflect the failure or abnormal operation of electrical equipment in the power system, and act on the switch to trip or send out a signal ...

At the China International Information and Communication Exhibition (PT Exhibition) in Beijing, Rittal is showcasing its innovative "edge data center" solutions. In an era of increasing demand for high-speed processing and maximum flexibility, small, flexible edge data centers are digitizing enterprises in a steady stream of ...

1. The cabinet is generally made of cold-rolled steel plate or alloy to store the computer and related control equipment, which can provide protection for the storage equipment, shield electromagnetic interference, arrange the equipment in an orderly and neat manner, and facilitate the maintenance of the equipment in the future. Cabinets are generally divided into server cabinets, network machines, etc.

What are the basic requirements for a high-voltage circuit breaker? A: A. Reliable work; B. Have sufficient circuit breaking capacity C. Have the shortest possible cut-off time; D. Simple structure and low price. What is the purpose of the disconnector? Answer: A. Electrical...

1. Deliver the cold air to the network cabinet: Because the equipment in the cabinet needs the air conditioning the most. 2. Deliver the cold air to the front of the network cabinet: because the cold air can only enter the module server chassis from the front of the server to play a role in heat exchange. 3. Precisely adjust the ...

The development of sheet metal cabinet and chassis processing industry is getting bigger and bigger, which is due to the rapid development of society, the popularity of high-tech products, server cabinets, computer main chassis, equipment shells, etc. What are the advantages of sheet metal cabinet enclosures? 1. Cabinet and chassis products provide space for ...

1. When the electrical cabinet is used, the shell should be reliably grounded, and the electrical parts should be comprehensively inspected to eliminate the phenomenon of leakage and open circuit that may be caused by long-distance transportation, and check whether the voltage is consistent with the working voltage. 2. The electric cabinet is a non-explosion-proof oven, so it is flammable, explosive, volatile and corrosive.

1. Buried laying The laying method of laying the cable immediately underground is called buried laying. The buried cable must be armored cable and anti-corrosion coating protection cable, and the bare cable cannot be buried. Generally, the depth of the cable trench shall not exceed 0.9m, and the buried laying shall be paved ...

1. The impact of lightning The armor components of the control cable are all metal conductors, and if the power line is short-circuited or lightning hits the metal parts, a strong current will be generated to destroy the optical cable line equipment, and even casualties will occur in serious cases. 2. Optical cable ...

Stainless steel rain top cover for AE Product model 2472.000 Outdoor fixtures are safely and reliably protected with a drain channel at the back. Material: Stainless steel 1.4301 (AISI 304). Product Description: Safe and reliable protection for outdoor installations, with ...

Bare wire body products The main characteristics of this type of products are: pure conductor metal, no insulation and sheath layer, such as steel core aluminum stranded wire, copper-aluminum busbar, electric locomotive line, etc.; The processing technology is mainly pressure processing, such as smelting, calendering, drawing, stranding/pressing stranding, etc.; The main products ...