Rittal Cables – the principle of selection of power cables

Create Date: 2024-8-30 12:03:23|Source: Rittal/Rittal

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, you can choose general plastic insulated cables, steel tape armored cables, steel wire armored cables, anti-corrosion cables, etc., and according to safety requirements, non-flame retardant cables, flame retardant cables, halogen-free flame retardant cables, fire-resistant cables, etc

2. Selection of wire and cable specifications

When determining the use specifications of wires and cables (conductor cross-section), the selection conditions such as heating, voltage loss, economic current density, and mechanical strength should generally be considered According to experience, the low-voltage power line is generally selected according to the heating condition because of its load current, and then the voltage loss and mechanical strength are checked, and the low-voltage lighting line can be selected according to the allowable voltage loss condition because of its higher requirements for voltage level, and then the heating condition and mechanical strength can be checked, and the cross-section is selected according to the economic current density for the high-voltage line. Then, the heating conditions and allowable voltage loss should be checked, and the mechanical strength of the high-voltage overhead line should also be checked.

Rittal Cables – the principle of selection of power cables

More on that

	Rittal enclosures – considerations for control cabinet transfers First, the assembly process The assembly process is the guarantee of the assembly work, because only the assembly according to the process can ensure the quality of the assembly work. The process is the standard and requirement of assembly, and only the assembly according to the process can ensure the safety of assembly. However, before the assembly, the technical ...
	Rittal Cabinet - Knowledge Quiz of High and Low Voltage Distribution Cabinet (51-60) 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 ...
	Rittal cables – the common code for cables Usage code - not marked as power cable, K- (control cable), P- (signal cable); Conductor material code - not marked as copper (can also be marked as CU), L- (aluminum); Inner Sheath Code – Q-(Lead Packed), L- (Aluminum Cladding), H- (Rubber Jacket), V-(Polyvinyl Chloride ...
	The Rittal enclosure model 6380.510 is designed to be ultra-slim and matched to the embedded devices Product Introduction Brand: Rittal cabinets Product model 6380.510 Aluminum box, strong thermal conductivity, excellent passive heat dissipation. For relatively small panels and control schemes. The ultra-slim design matches the embedded device and takes up almost no space. Type: Support ...
	Rittal cabinets – Q&A on the basics of high and low voltage distribution cabinets What are the main parameters of the transformer? Answer: (1) rated voltage; (2) Rated current; (3) Rated capacity; (4) No-load current; (5) No-load loss; (6) Short-circuit loss; (7) Impedance voltage; (8) Winding connection diagram, phasor diagram and ...
	How to set the temperature of the Rittal air conditioner 1. Set the target temperature: the default temperature of the original factory is 35°C, you can press and hold the set button for more than 1 second after starting, the parameters start to flash, complete the temperature adjustment by pressing the UP and DOWN buttons, and after adjusting to the target temperature, press the set button to store the set parameters. 2. High temperature alarm: ...
	Rittal cabinets – Q&A on the basics of high and low voltage distribution cabinets 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 ...
	Rittal cabinets – the uses and characteristics of commonly used low-voltage distribution cabinets ▲ GGD AC low-voltage distribution cabinet: (1) Use GGD type AC low-voltage distribution cabinet is suitable for substations, power plants, factories and mining enterprises and other power users AC 50Hz, rated working voltage 380V, rated working current 1000-3150A distribution system, as a power ...
	Rittal enclosures – classification of HVAC functions and system parameters Heating, also known as heating, refers to the supply of heat to a building, insisting on a certain indoor temperature. Ventilation – the process of feeding and removing air into a space by natural or mechanical means. Air conditioning - (referred to as air conditioning) is to meet the requirements of production and life, improve labor ...
	Rittal enclosures – how to choose the size of the cabinet? 1. Determine the size of the server, such as depth size, height size (how many U), and whether it is a 19-inch rack-mounted installation. 2. Choose a cabinet according to the installation space: If the server is a 19-inch rack-mounted installation, then a standard cabinet can be used. Root...
	Running seamlessly, Rittal develops with reliable quality "pulsating" energy storage Reliable supply wherever you are Tesvolt's large-scale industrial battery storage systems are based on standard products made by Rittal and guarantee a continuous power supply on the top of a mountain, by the sea or in the desert. The mountain peaks rise high above the crystal clear ...
	Rittal cabinet - judgment and treatment of high-voltage switchgear opening faults Opening faults can also be divided into mechanical faults and electrical faults. Electrical faults mainly include open control loops, coil faults, auxiliary switch faults, etc. 1. Fault phenomenon: when the red light is not on, the electric cannot be opened, which is the fault of the auxiliary switch. When the opening coil burns out, there is smoke, odor, insurance ...
	Rittal cabinets – Q&A on the basics of high and low voltage distribution cabinets What are the classifications of different electrical experiments according to their roles and requirements? A: It can be divided into insulation test and characteristic test. What are the factors that affect the degree of harm to the human body of electric shock? Answer: The magnitude of the current, the duration of the current, the path of the current, the resistance of the human body, and the ...
	Introduction and classification of Rittal switchgears An introduction to Rittal switchgear The switch cabinet is a kind of electrical equipment, the outer line of the switch cabinet first enters the main control switch in the cabinet, and then enters the sub-control switch, and each branch is set according to its needs. Such as instrumentation, automatic control, motor magnetic switch, all kinds of AC contactors, etc., ...
	Rittal cabinets – what are the technical requirements for the cabinets? 1. It should have good technical performance. The structure of the cabinet should be designed according to the electrical and mechanical properties of the equipment and the requirements of the use environment, so as to ensure that the structure of the cabinet has good stiffness and strength, as well as good electromagnetic isolation, grounding, noise isolation, ...
	Rittal cabinets – Q&A on the basics of high and low voltage distribution cabinets What are the common decompression starting methods of cage asynchronous motors? Answer: (1) Three-phase resistance decompression start. (2) The reactor starts under reduced pressure. (3) Autotransformer decompression start. (4) Star delta decompression start. (5) Extension ...
	What do you need to pay attention to when wiring your Rittal cabinet – electrical control cabinet? 1. About the electrical part: 1. The input side and output side of the miniature circuit breaker are inverted. 2. The voltage of the coil of the electrical parts does not match the voltage of the drawing, especially the voltage of the small relay and indicator light is easy to error. 3. The positive and negative polarity of electrical appliances is reversed, and the internal polarity of DC electrical appliances is reversed.
	Rittal! Guarding the cabinet system with a "core". As the "guardian" of the cabinet, the lock system is also an important accessory choice in the cabinet system. Locking systems include fasteners, locks, keys, handles, and cylinders, among others. The lock cylinder refers to the module that is replaced for different locks and keys. 01. Personalized configuration ...
	Rittal Cables – the operation of power cable routes 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 ...
	Rittal cabinets – Q&A on the basics of high and low voltage distribution cabinets What are the relay protections of small and medium-sized substations? A: A overcurrent protection; B. Current quick-break protection; C. Time-limited current quick break protection; D Low voltage protection. What is the classification of substation monitoring system? A: Manual monitoring, automatic monitoring of telecontrol devices and micro-...