Widely used in substations, power plants, power distribution room, laboratory roommates and field live work, etc., mainly use glue insulation materials to make the upper and lower surfaces should not have harmful irregularities. Harmful irregularity refers to one of the following characteristics, namely defects that destroy uniformity and damage the smooth surface of the surface, such as holes, cracks, local bulges, incisions, conductive foreign matter inclusions, creases, voids, bumps, and casting marks. . Harmless irregularity refers to surface irregularities formed in the production process. The specific content is as follows: Dispensing room high-voltage insulation pad Note 1, insulation pad specification (1) According to the voltage level can be divided into 5kv, 10kv, 20kv, 25kv, 35kv
(2) according to the color can be divided into: black insulation blanket, red pad, green pad (3) can be divided according to the thickness:, 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm.
2, the use of black insulation blankets and storage methods: widely used in substations, power plants, power distribution room, laboratory roommates and field live operation and other use. Should be stored in a dry and ventilated environment, away from heat sources, more than 20cm away from the ground and walls. Avoid contamination with acids, alkalis, and oils. Do not expose outdoors to direct sunlight.
3,15KV insulation table mat 1.15KV insulation table mat Overview: High-voltage insulation mat in the power distribution room Precautions (1) Introduction: Strengthen the staff to the ground insulation, rubber pads made of special rubber. Insulation pad is also called insulation pad, insulation rubber pad, black insulation blanket, insulation rubber pad and so on. With a larger volume resistivity and resistance to electrical breakdown of the pad. Made of non-polar rubbers with excellent insulation properties such as NR, SBR and IIR. Mesa or floor insulation for work places such as power distribution.
(2) Appearance: Scratches or bumps: Depth or height must not exceed the thickness tolerance of the pad; Bubbles: Within one square meter, no more than five bubbles with an area less than 1cm2, and no less than 40mm between any two bubbles; Impurity: Depth And the length shall not exceed the thickness of the pad is not less than 40mm; edge is uneven or spongy: the width does not exceed 10mm, the length does not exceed 1/10 of the total length of the pad; crack: not allowed 4. National Standard for Insulating Mats: No. Item Period Requirements Description 1 Power frequency voltage test 1 year voltage level Power frequency voltage kV duration min Used in charged equipment area High voltage 151 Low voltage 3.51 When testing, insulate the insulating pad with wet cloth Or metal foil, and should be 200mm smaller than the insulating pad around the test, continuously and uniformly boosted to the voltage value specified in Table 8, keep 1min, observe the phenomenon of breakdown, if no breakdown, the test passed. When the sample is tested in sections, the edges of the two tests are overlapped.
5. Insulation mats General use configuration: Distribution room high-voltage insulation mats Notes (1) 5KV insulation mat thickness: 3mm Specific gravity: 5.8KG/m2 Color: red, green, black (2) 10KV insulation pad thickness: 5mm Specific Gravity: 9.2KG/m2 Color: Red, Green, Black (3) 15KV Insulation Pad Thickness: 5mm Specific Gravity: 9.2KG/m2 Color: Red, Green, Black (4) 20KV Insulation Pad Thickness: 6mm Specific Gravity: 11KG/ M2 Color: red, green, black (5) 25KV insulation pad thickness: 8mm Specific gravity: 14.8KG/m2 Color: red, green, black (6) 30KV-35KV insulation pad thickness: 10mm12mm Specific gravity: 18.4KG/m222KG/ M2 color: red, green, black Dear customer:
Thank you for your attention to our products. In addition to this product introduction, the company also has insulation ladders, high-voltage insulation mats, cable fault testers, high-voltage measuring instruments, insulation boots gloves pressure test equipment, power safety equipment cabinets, etc. Introduction, if you are interested in our products, welcome to inquire. Thank you!
Z308 Cast Iron welding electrode
DESCRIPTION:
Z308 Cast Iron Welding Electrodes is covered welding electrode with pure nickel core and graphitic coating for cast iron. The weld seam metal has excellent machinability and crack resistibility. Both AC and DC can be applied.
Application:
Z308 Cast Iron Welding Electrodes is used for repair welding thin pieces and processing surface of cast iron, as well as important gray cast iron pieces, such as engine gear box, machining tools, guideway, etc.
Attention:
A. Welding electrodes must be baked for 1 hourat the temperature of 80-120℃ before welding.
B. Hammering the welded seam to dispel stress around the welding region and to avoid craking.
C. Large current should be avoided in cold welding for cast iron,, so as to reduce impurities of base metal to penetrate the weld seam and to reduce the width of the weld zone, and then to improve the abliity of carck-resistance and capability of machine processing of the weld seam.
Z308 Welding Electrodes
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Dingzhou Jinlong Metal Production Co., Ltd. , https://www.weldingelectrodefactory.com