Now with people's knowledge of copper, aluminum, two materials, gradually reached a consensus. From the economy, practicality, cost-effective and other perspectives, the open line generally use aluminum wire, dark line are using copper wire. So how should copper and aluminum wires be handled at the

Basics of Copper WireCopper wire performance differentiation overviewAccording to the resistivity (the size of the resistance value of the material with a length of 1m and a cross-sectional area of 1mm2), we generally divide the material into three categories:Conductors: Resistivity below 102Ω-mm2/m

What can we do if break an optical fiber?what should we do if fibers are accidentally broken when operating ? This is a common thing in the daily operation of the weak electricity project.If the fiber is broken, to connect the two fiber optic lines together, that requires a fiber optic hot fusion ma

1Q: What do the various diameter parameters in fiber optic patch cords represent?A: These parameters are related to the fiber structure.From the cross-section, the internal structure of the fiber as shown in the figure above, the corresponding parameters are interpreted as follows:

PE (Polyethelene) PolyethylenePE can be specifically categorized into:HDPE (High Density PE)MDPE (Medium Density PE) is not widely used.LDPE (low density PE)How to identify the PE material, burning blue flame light, burning area melting transparent, there are sol drops and candle flavor, belongs to

Conventional plastic materials can be determined using the combustion method, according to whether the flammable, combustion flame, whether there are drops, whether or not the delayed combustion, odor and other phenomena to determine the following combustion phenomena for commonly used plastic mater

What is the main function of steel core aluminum stranded wire？1. Introduction of steel core aluminum stranded wireSteel-core aluminum stranded wire, abbreviated as ACSR, is a common material for overhead conductors. It consists of aluminum conductor and steel core, which is widely used in the field

Can't get online with the router, but can get online with a direct connection to the optical cat?When using the router, it can't access the Internet, but it can access the Internet when we connect computer directly to the optical cat without the router. What is going on? And how to deal with it?Firs

(A) How to install the cabinet tray?The installation of the cabinet tray only requires the use of four pins to fix it on the square hole of the cabinet corner cabinet. Specific operation: first of all, the pins will be contracted inward (Figure 1), then the cabinet tray will be flipped over and inse

Transmission line basics(a)The composition of the transmission lineThe transmission pathway is composed of power lines, substation and distribution equipment.Transmission lines from the structure can be divided into two types of overhead lines and cable lines.The main components of overhead transmission