This standard specifies the technical requirements, test methods and inspection rules for high-voltage electrostatic protective clothing. This standard applies to high-voltage electrostatic protective clothing worn by workers climbing towers (frames) of AC transmission lines and substations with rated voltages of 110kV to 500kV and ground workers who need to prevent electrostatic induction. GB 18136-2000 High-voltage electrostatic protective clothing and test methods GB18136-2000 standard download decompression password: www.bzxz.net

GB18136--2000
The principle and function of the high-voltage electrostatic protective clothing described in this standard are the same as those of GB6568.1-2000 "Shielding Clothing for Live Working". However, due to the different positions of the ground potential personnel and the equal potential personnel of live working on the tower (frame), the requirements for the two types of clothing are also different, that is, the former is low and the latter is high. The technical indicators of high-voltage electrostatic protective clothing are fewer than those of shielding clothing for live working, and the technical parameters are also lower. As for the test methods of technical indicators, they are all taken from GB6568.2--2000 "Test Methods for Shielding Clothing for Live Working". Only the electric field strength test points in the whole set of high-voltage electrostatic protective clothing and the voltage applied on the wire are appropriately changed to make it more practical. This standard was proposed by the Electric Power Department of the State Economic and Trade Commission. This standard is under the jurisdiction of the National Technical Committee for Standardization of Live Working. The originating units of this standard: Changsha Electric Power Bureau, Wuhan High Voltage Research Institute of State Power Corporation. The main drafters of this standard: Bo Kehan, Hu Yi, Zhang Lihua, Yi Hui. 209
National Standard of the People's Republic of China
High voltage electrostatic shielding clothes and test procedure
High voltage electrostatic shielding clothes and test procedure1 Scope
This standard specifies the technical requirements, test methods and inspection rules for high voltage electrostatic protective clothing. GB18136-2000
This standard applies to the off-pressure electrostatic protective clothing worn by workers climbing towers (frames) of AC transmission lines and substations with a rated voltage of 110V500kV and ground workers who need to prevent electrostatic induction. High voltage electrostatic protective clothing made in accordance with this standard shall not be used as equipotential shielding clothing. 2 Applicable standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest version of the following standards. GB/T1335.11997 Clothing size men
GB6568.1--2000 Shielding clothing for live working GB6568.2-2000 Shielding clothing for live working test methods GB/T16927.1-1997 High voltage test technology Part 1: General test requirements (eqVIEC60-1:1989) GB/T16927.21997 High voltage test technology Part 2: Measurement system (eqVIEC60-2:1994) FZ/T810071994 Men's and women's single clothing
3 Definitions
This standard adopts the following definitions:
3.1 High voltage electrostatic shielding clothing is a kind of clothing made by blending conductive materials and textile fibers into cloth and then weaving them into cloth. When worn by people and machines working with high voltage, it can effectively protect the human body from the influence of high voltage electric fields and electromagnetic waves. The whole set of high-voltage electrostatic protective clothing includes: coat, pants, hat, gloves and shoes. 3.2 Connection tape
A cloth tape (15mm wide, double layer) made of shielding clothing material that meets the technical indicators of 5.2 in GB6568.1--2000 is sewn on the coat, pants, and gloves to form an electrical connection between the parts. 4 Technical requirements
4.1 Clothing material
4.1.1 Shielding efficiency
Shielding efficiency shall not be less than 28dB.
4.1.2 Clothing material resistance
Clothing material resistance shall not be greater than 3000.
4.1.3 Sweat resistance
Approved by the State Administration of Quality and Technical Supervision on 2000-0714, 210
Implementation on 2000-12-01
GB 18136-2000
After acid sweat resistance and alkali sweat resistance tests, the resistance value shall not be greater than 500Ω, and the shielding efficiency shall not be less than 26 dB. 4.1.4 Breathability
The air flow rate through the clothing shall not be less than 35L/(m2·s). 4.1.5 Breaking strength and elongation at break
The breaking strength of the clothing in the warp direction shall not be less than 345 N, the breaking strength in the weft direction shall not be less than 300 N, and the elongation at break in the warp and weft directions shall not be less than 10%.
4.2 Clothing
The resistance of shoes shall not be greater than 500α.
The hat, brim, extended edge or shawl should be made of anti-static clothing materials to avoid discomfort in the exposed parts of the human head. 4.2.3 A complete set of high-voltage electrostatic protective clothing
The resistance value between the farthest points of the whole set of clothing is not required, but a good electrical connection must be formed between the parts. According to the provisions of 5.8 of this standard, the surface field strength of the chest inside the clothing shall not be greater than 15kV/m, and the current flowing through the human body in the high-voltage electrostatic protective clothing shall not be greater than 50μA.
4.2.4 Connecting belt
The collar, cuffs and both sides of the connection between the top and the pants should be equipped with connecting belts. The two sides of the connection between the pants and the top and the two trouser legs should be equipped with connecting belts. A hat and gloves should be equipped with a connecting belt. The overlapping length of the connecting belt and the clothes, pants, hats and gloves shall not be less than 100mm, and the width shall not be less than 15mm. The longitudinal sewing between the connecting belt and the connected parts shall not be less than 3 times, and the hooks shall be evenly distributed on the connecting belt. 5 Test methods
5.1 Clothing shielding efficiency test
Carry out in accordance with 3.1 of GB6568.2-2000. 5.2 Clothing resistance test
Carry out in accordance with 3.2 of GB6568.2-2000. 5.3 Sweat corrosion test
Carry out in accordance with 3.7 of GB6568.2-2000, but the sweat corrosion-drying cycle is reduced to 2 times, and then measure its shielding efficiency and resistance value in accordance with 3.1 and 3.2 of GB6568.2-2000 respectively. 5.4 Breathability test
Carry out in accordance with 3.9 of GB6568.2-2000. 5.5 Breaking strength and breaking elongation test
Perform according to 3.10 of GB6568.2-2000. 5.6 Shoe resistance test
Perform according to 4.3 of GB6568.2-2000. 5.7 Complete set of static protective clothing resistance test
Perform according to 4.4 of GB6568.2-2000. 5.8 Electric field strength test in a complete set of electrostatic protective clothing 5.8.1 Main equipment
a) A 500kV simulated wire (four split wires), the length of which is not less than 10m, hung in the test hall; b) A field strength meter with a range of 0~100kV/m, the error of which should be less than or equal to 1%; c) A thin shell mannequin that can be placed on the chest of the field strength meter; 211
d) A pair of telescopes:
GB 18136-2000
e) A 400kV or above power frequency test transformer and measurement system (should meet the requirements of GB/T16927.1~16927.2). 5.8.2 Test conditions
The test should be carried out in an environment with a temperature of 23C+2C and a relative humidity of 45%~55%. 5.8.3 Test arrangement and procedure
a) The pre-placed mannequin should be located directly below the wire. Apply a certain power frequency voltage to the conductor so that the undistorted field strength at the position 1m above the ground reaches 58kV/m, record the voltage value and cut off the voltage; b) Place the manikin wearing a full set of electrostatic protective clothing at this position. The field strength meter is on the chest of the manikin inside the electrostatic protective clothing, and the field strength meter should be well shielded:
c) Apply the voltage to the conductor again, use a telescope to observe the field strength meter through the button seam source, and read three data. 5.8.4 Test results
The arithmetic average of the three readings is taken as the measured field strength, and its value shall not be greater than the value specified in the standard. 5.8.5 Test report
The content of the test report is the same as 4.1.5 of GB6568.2-2000, and 5.9 The test layout of the test of the current flowing through the human body in the full set of electrostatic protective clothing is the same as 5.8 in this standard. The test is carried out in accordance with 4.6 of GB6568.22000. 6 Inspection rules
6.1 Type test
The manufacturer must conduct type tests on the products before finalization according to the items and test methods specified in this standard. If the materials used in the finalized products are changed or the manufacturing process and fabric structure are changed, the type test should be repeated. For products that are provided for type testing, three sets of electrostatic protective clothing must be randomly selected from the same batch and tested according to the items in Table 1. If the test product fails the test in any of the test items in Table 1, the batch of products is considered unqualified. Type tests are carried out in units with nationally recognized test equipment and qualified inspections by the design department. Table 1 Type test and export test items
Article number of this standard
6.2 Factory test
Test itemsbzxZ.net
Shielding efficiency
Clothing resistance
Perspiration corrosion resistance
Breathability
Breaking strength and elongation at break
Shoe resistance
Internal field strength of electrostatic protective clothing
Current flowing through the human body in electrostatic protective clothing
Factory test is carried out by the manufacturer. If the user requests it, the manufacturer can also participate in the supervision. Factory test items are shown in Table 1.
Group test
Factory test
The finished clothes should be checked for appearance and shunt connection belt piece by piece to ensure that they are intact. In addition, the finished product inspection shall be carried out in accordance with the requirements of the "*Inspection Regulations" of FZ/T810071994. When the product passes the inspection and leaves the factory, a certificate of conformity shall be issued for each product, including the test conclusion, test date and tester code. The manufacturer must ensure the stability of the product and the consistency of the delivered product with the type test sample. The manufacturer shall provide the user with the results of the sampling test 212
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6.3 Sampling test
GB 18136--2000
If the user requires, sampling inspection can be carried out in the delivered products, and repeated tests can also be carried out on individual items. With the consent of both parties, other supplementary tests not specified in this standard can also be carried out. 7 High-voltage electrostatic protective clothing size
7.1 Tops and trousers size
According to GB/T1335.1, both tops and trousers are selected from the 5.3B series. The tops are available in five sizes: 165/93, 170/96, 175/99, 180/102, 185/105; the trousers are available in five sizes: 165/84, 179/87, 175/90, 180/93, 185/96. 7.2 Hat size
Select five sizes: 57, 58, 59, 60.61mm. 7.3 Shoe size
Four sizes are available, namely 25, 26, 27 and 28mm. The width is selected. 8 Marking and packaging
8.1 Marking
8.1.1 There is no regulation on the color of high-voltage electrostatic protective clothing. 8.1.2 All high-voltage electrostatic protective clothing that meets this standard must have the following markings: a) manufacturer name;
b) trademark;
c) size;
d) date of manufacture.
The above content is displayed with a red circular mark to distinguish it from the shielding clothing used by electricians with equal potential for live working. The circular mark (see Figure 1) should be firmly sewn on the top, pants, hat and gloves of the high-voltage electrostatic protective clothing. The size parameters of the circular mark (see Figure 2) are a) the width of the circular frame is 5mm;
b) the outer diameter of the circle is 50 mm, inner diameter is 40 mm. 213
Manufacturer name
GB18136-2000
1 Connecting belt 2—Logo, 3—Conductive shoes
Figure 1 High-voltage electrostatic protective clothing
Note: Round, all colors are bright red, and the base fabric is light blue. Figure 2 Logo
8.2 Packaging
The packaging or packaging box of high-voltage electrostatic protective clothing should have the product name, model, quantity, factory date and factory name. High-voltage electrostatic protection should be packaged in plastic bags and then packed in hard boxes to prevent the metal conductive materials from being damaged by long-term heavy pressure during transportation.
The packaging box must be accompanied by a certificate of conformity and instruction manual. 214
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