Rittal Cables - Introduction to the performance characteristics of control cables

Server cabinets have requirements in terms of depth, height, and load-bearing capacity. There are three heights of 2.0 meters, 1.8 meters and 1.6 meters; The width is 800mm, 700mm or 600mm; There are three depths: 700mm, 800mm and 900mm. Can be configured: special fixed pallet, special ...

The control cabinet is according to the requirements of electrical wiring to assemble switchgear, measuring appearance, maintenance appliances and auxiliary equipment in a closed or semi-closed metal cabinet or screen panel, and its arrangement should meet the requirements of the normal operation of the power system, easy to overhaul, and not to endanger the safety of people and surrounding equipment. Normal operation ...

1. Built-in air conditioner for heat dissipation The cabinet is equipped with a refrigeration system, the evaporator and power devices are installed inside the cabinet in a closed manner, and the condenser and compressor are placed in the external circulation air duct or outside the cabinet. Since the power unit is sealed in the cabinet, as long as the appropriate sealant is used ...

1. Preliminary preparation First of all, notify the user to label the cable and organize the cabinet without affecting the normal operation of the user. Then, according to the topology of the network, the existing equipment, the number of users, the user group and other factors, the internal lines of the cabinet are delineated.

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 ...

21. What does the workplace have to meet for high-voltage electrical appliances? Answer: A. Rated voltage, B. Maximum working voltage, C. Rated current, D. Rated short-circuit interrupting current, E. Short-time withstand current and peak withstand current. 22. What are the basic requirements for a high-voltage circuit breaker? Answer: A work ...

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.

If the indoor temperature is higher than the outdoor one, or the indoor temperature is higher than the set temperature, the air conditioner will not start; Solution: Test the temperature comparison between indoor and outdoor to check whether the indoor temperature is too high. The voltage of the air conditioner is unstable, and the compressor cannot be started normally.

51 What are the factors that affect the degree of harm to the human body caused by electric shock? Answer: Factors such as the magnitude of the current, the duration of the current, the path of the current, the resistance of the human body and the frequency of the current. 52 Types of electric shock? Answer: Direct electric shock, indirect electric contact, inductive ...

What are the main technical parameters of the fuse? Answer: A. Rated voltage, B. Rated current, C. Breaking capacity, D. Melting characteristics, E. Overvoltage. What are the main products of low-voltage power distribution equipment? Answer: Low-voltage distribution panels, switch cabinets, switch boards, lighting boxes, power boxes and electrical ...

First of all, the number of the control cable often starts with the letter "C", which indicates that the control cable is specially designed to connect different sensors and control devices as a medium for signal transmission. This cable can transmit data signals and has a certain resistance to wear and chemical corrosion, so ...

How much is the external design of domestic power distribution equipment products? Answer: Front panel type, cabinet type and box type, but also indoor type, fixed type and component fixed assembly, some products use drawer cabinets. Transmission circuits? Answer: Erected in the power plant step-up substation and ground ...

In recent years, with the accelerated development of China's informatization process and the continuous expansion of its scale, the demand for digital centers, as the carrier of the digital economy, is also increasing day by day. The operation of the digital center needs the support of a stable and energy-saving power system.

Rittal products are divided into: Rittal control cabinets: small enclosures (polycarbonate enclosures PK, junction enclosures KL, compact control enclosures EB, bus enclosures BG), compact control enclosures, plastic control enclosures KS, enclosure systems (subdivided into TS 8/SE 8 family), and...

Rittal has an economical air conditioner on the market, and the Rittal RBT cooling unit – is your most economical choice! If a limited budget makes you more interested in the cost Extremely sensitive, then RBT is the ideal choice for you Choose. Produced through large-scale assembly lines, as well as cold But the unit itself is excellent ...

1. Safety: As the carrier of electrical equipment, the outdoor cabinet must have excellent structural design, solid materials, and firm bottom fixation to meet the requirements of strong typhoons, strong rainstorms, and even strong earthquakes. At the same time, the cabinet should have anti-leakage, anti-short circuit, anti-cut and other requirements. 2. Rainproof and dustproof ...

1. Selection of wire and cable models When selecting wires and cables, it is necessary to consider the use, laying conditions and safety; For example, depending on the application, power cables, overhead insulated cables, control cables, etc. can be selected According to the different laying conditions, the general plastic insulated cable can be selected ...

1. The circuit breaker cannot be closed Causes: 1. The undervoltage coil does not work (the voltage is normal). Solution: Replace the undervoltage coil. 2. Press the closing button, and the closing coil will not work when it is powered up. Solution: Replace the undervoltage coil. 3. Cooperation...

1. Determine the material of the distribution box First of all, from the material selection, the distribution box on the market is divided into plastic and metal two materials, metal material is durable, strong resistance, but it is easy to rust and corrode when encountering water stains; Although plastic is light and cheap, it is not very durable. Therefore the root ...

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 device that trips the switch or sends out a signal. What are the commonly used relays? A: Current Relay, Voltage Relay, Signal ...