PS high voltage circuit column type porcelain insulator manufacturer
Brand: lixiong
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Product description and usage method:
PS high voltage circuit column type porcelain insulator
1. Overview
The circuit column insulator is a steel insulator composed of one or more insulating parts of a metal base permanently glued on a metal base, and sometimes a cap, and can be installed on the support structure with double-headed bolts or one or several bolts installed on the metal
base . It is
used for insulation and support wires in AC power lines in ordinary areas and medium and heavy pollution areas. The ambient temperature of its installation location is between -40℃~+40℃.
Line (solid) column insulators can replace needle insulators. Needle insulators are B-type insulators and are prone to breakdown and damage during operation. The tempered glass insulators will
break itself at this time, while the porcelain insulators will not break itself. Therefore, the power industry department has to spend a lot of manpower and material resources to conduct electrical inspection and preventive tests on porcelain insulators, which has certain shortcomings
in . Therefore, with the development of manufacturing technology, line (solid) column insulators have emerged. This type of insulator has a solid insulator and belongs to a type A insulator
. Therefore, there is no need to worry about breakdown along the inside of the insulator during operation, which is a major advantage.
Line column porcelain insulators are divided into eight levels according to the rated lightning impact withstand voltage value: 95, 105, 125, 150, 170, 200, 250 and 325kV; according to the rated bending failure
load value, it is divided into four levels: 3, 5, 8 and 12.5kN; according to its installation method, it is divided into two types: upright installation and horizontal installation; according to its connection method with high-voltage conductors
, it is divided into two types: top binding type and top clamp type; according to the connection method between the steel feet and the base, it is divided into two types: separable (threaded connection) and inseparable type.
The PSN-105/5ZS connection threads produced by our company are available in three types: M16, M18 and M20. At the same time, in order to increase creepage distance, PSN4-105/5ZS stain-resistant products have been developed.
base . It is
used for insulation and support wires in AC power lines in ordinary areas and medium and heavy pollution areas. The ambient temperature of its installation location is between -40℃~+40℃.
Line (solid) column insulators can replace needle insulators. Needle insulators are B-type insulators and are prone to breakdown and damage during operation. The tempered glass insulators will
break itself at this time, while the porcelain insulators will not break itself. Therefore, the power industry department has to spend a lot of manpower and material resources to conduct electrical inspection and preventive tests on porcelain insulators, which has certain shortcomings
in . Therefore, with the development of manufacturing technology, line (solid) column insulators have emerged. This type of insulator has a solid insulator and belongs to a type A insulator
. Therefore, there is no need to worry about breakdown along the inside of the insulator during operation, which is a major advantage.
Line column porcelain insulators are divided into eight levels according to the rated lightning impact withstand voltage value: 95, 105, 125, 150, 170, 200, 250 and 325kV; according to the rated bending failure
load value, it is divided into four levels: 3, 5, 8 and 12.5kN; according to its installation method, it is divided into two types: upright installation and horizontal installation; according to its connection method with high-voltage conductors
, it is divided into two types: top binding type and top clamp type; according to the connection method between the steel feet and the base, it is divided into two types: separable (threaded connection) and inseparable type.
The PSN-105/5ZS connection threads produced by our company are available in three types: M16, M18 and M20. At the same time, in order to increase creepage distance, PSN4-105/5ZS stain-resistant products have been developed.
2. Technical standards
GB/T 1001.1-2003 "Porcelain or glass insulator components for overhead line insulators with nominal voltage higher than 1000V Part 1 AC system—Definition, Test Methods and
Determination Criteria"
GB/T 21206-2007 "Properties of Line Column Insulators"
JB/T 8509-1996 "High Voltage Line Column Insulators"
Determination Criteria"
GB/T 21206-2007 "Properties of Line Column Insulators"
JB/T 8509-1996 "High Voltage Line Column Insulators"
3. Model description
JB/T8509-1996 standard stipulates:
PS——Line column porcelain insulator;
J——Wire clamp type, binding type does not represent;
N——Long creepage distance (normal creepage distance does not represent);
the number after "—" is the lightning full-wave impact withstand voltage value, kV;
the number after "/" is the bending and failure load value, kN;
Z——Upright installation, horizontal installation does not represent;
S——Shelical connection type.
GB/T 21206-2007 standard stipulates:
R - line column insulator;
the number after R represents the bending failure load value, kN;
the letter E or J represents the outer or inner glue assembly of the metal accessories;
the letter T, C, and H respectively represents the top binding type, the top clamp type installed upright or the top clamp type installed horizontally;
the number of the suffix indicates the specified lightning impact withstand voltage value, the peak value kV;
the letter N or L of the suffix indicates the standard and long creepage distances respectively.
PS——Line column porcelain insulator;
J——Wire clamp type, binding type does not represent;
N——Long creepage distance (normal creepage distance does not represent);
the number after "—" is the lightning full-wave impact withstand voltage value, kV;
the number after "/" is the bending and failure load value, kN;
Z——Upright installation, horizontal installation does not represent;
S——Shelical connection type.
GB/T 21206-2007 standard stipulates:
R - line column insulator;
the number after R represents the bending failure load value, kN;
the letter E or J represents the outer or inner glue assembly of the metal accessories;
the letter T, C, and H respectively represents the top binding type, the top clamp type installed upright or the top clamp type installed horizontally;
the number of the suffix indicates the specified lightning impact withstand voltage value, the peak value kV;
the letter N or L of the suffix indicates the standard and long creepage distances respectively.
4. Appearance and size
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