The three heads of three-phase power are called phase lines, and the three tails of three-phase power are connected together. The neutral line is also called "zero line". The reason for calling the zero line is that no current flows through the neutral line of the three-phase equilibrium moment, and then it is directly or indirectly connected to the earth, and the earth voltage is also close to zero.
The ground wire is a line that reliably connects the earth of the equipment or the electrical appliance to the earth, and is a good solution to prevent electric shock accidents.
Under normal circumstances, the three-phase circuit uses red, yellow, and blue colors to indicate three live lines, and the zero line uses black. In a single-phase lighting circuit, generally yellow indicates a live line, blue is a neutral line, and yellow-green is a ground line. In some places, red is used to indicate the fire line, black is the neutral line, and yellow and green is the ground line.
The electric appliance has a neutral line and a live line, thereby forming a passage, so that the electric current has an electric current to pass through, and the zero line is uncharged.
The ground wire is not powered regardless of whether the switch is off or not. Its main function is the grounding you mentioned. In order to avoid the occurrence of electric leakage accidents or high-potential potential hazards to humans, high-power electrical appliances have a grounding wire that can be used to introduce excess current or strong electric potential into the earth through the ground wire.
PCD Drills used to drill through holes or blind holes in solid materials and to ream holes in existing holes. Commonly used drill bits mainly include twist drills, flat drills, center drills, deep hole drills and nest drills. Although reamer and boring drills cannot drill holes in solid materials, they are customarily classified as drill bits.
Our customers can depend on us for prompt, efficient response and quality products that attest to our expertise in engineering and manufacturing. As part of our scrupulous inspection procedure, we test 100% of our drills .375" and under for assembly integrity, leakage, and specified oil flow.
FEATURE:
1.Hardness PCD blanks more than 5000HV.
2. PCD Stone Milling cutters is maily used for High efficiency milling and depth character engraving on underside, grooving areas with good surface Roughness.
3.Top quality as world leading manufactuers, high abrasive resistance and with long service life.
4.big quantity in stock for ordering
PCD carving tool
PCD drills
Flexible in order quantity:
Samples can be provided before mass production, and MOQ can be discussed accordingly.
PRODUCT DETAIL:
PRODUCTING PROGRESS:
PAYMENT AND DELIVERY:
PRODUCT EQUIPMENT :
ABOUT US :
We are specialize in manufacturing PCD diamond tools and Carbide tools. Our major product inclulde PCD Inserts , PCD Reamers , PCD End Mills , PCD Taps, Cabide Inserts,Carbide Drills, Carbide Reams, Taps etc.,
We also offered customized cutting tools per drawings, and provide package according to customer requirements. We manufacture a series range of cutting tools for machining of Cast iron, Aluminium alloy and Non-Ferros metal, it is widely used in all major sectors like Automobiles, Engineering, Aerospace, Aviation and 3C industry. Premium quality of raw material is used in the production and strict examination during processing with advanced equipment, so our client are satisfied with our reliable quality and on-time delivery.
Our best selling of cutting tools include PCD Inserts, PCD End Mill, PCD Ball Nose Mill, PCD Reamer, Carbide Taps , Carbide End Mill, Special Form Cutter and many more. For these years we have been made a large forward in the technologies of manufacturing cutting tools. With high quality on performance and price, our product sells well both on domestic and overseas market. And we will always focus on the quality and best service, to make long business relationship.
quanlity control:
We have dedicated team of quality control and precise equipment to keep good and stable performance for our products and processing services.
PCD Drill Bit, PCD Drills, Carbide Drill Bit, End Mill Bit
OPT Cutting Tools Co., Ltd. , https://www.optdiamondtoolss.com