source:Industry News Popular:adapter release time:2021-05-08 10:30:33 Article author:sznbone
The power cord testing produced by power cord manufacturers mainly includes conductor DC resistance, insulation resistance, finished product voltage test and insulated wire core voltage test, each of which is very important. Conductor resistance directly reflects the electrical transmission performance of the cable, and directly affects the temperature, life, voltage drop, and fullness of the cable during energized operation. It mainly examines the material and cross-sectional area of the conductor. If the material of the conductor is not good or the cross-sectional area is seriously insufficient , It will cause the DC resistance of the conductor to exceed the standard seriously. This kind of plug power cord will increase the loss when the current passes through the line, cause the cable conductor itself to heat, cause the insulation of the coated conductor to age and crack, cause the power supply line to leak, short-circuit, and even cause Fire endangers the safety of people and property. The standard has strict regulations on the conductor DC resistance value of cables of different specifications, which shall not be greater than the value specified in the standard.
Insulation resistance, finished product voltage test and insulated wire-core voltage test all examine the electrical insulation performance of the cable insulation layer and sheath layer. Insulation resistance is to detect the resistance of the insulating material between two conductors. It should be large enough. To insulation protection. The voltage test of the finished product and the voltage test between the insulated wires not only requires the cable to have sufficient insulation capacity, but also requires the insulation or sheath material to be uniform, free of impurities, and sufficiently uniform in thickness. There should be no invisible trachoma, pinholes, etc. on the surface, otherwise it will cause Partial breakdown during the withstand voltage test.
Read recommendations:
Transformer,Power Transformer,Ring Power Transformer
MKS-1401700H Switching Power Supply
200-500W Switching Power Supply
5V2A power adapter is a magical existence!
When choosing a power adapter, price and quality are more important
Popular recommended products
200-500W Switching Power Supply
2020-08-2924-65W Switching Power Supply
2020-08-2912V2ASwitching Power Supply
2020-08-28MKD-571202000 ADAPTER AC ADAPTER CE ADAPTOR UL ADAPTOR Linear Adapter
2020-08-28MKA-571652420 ADAPTER AC ADAPTER CE ADAPTOR UL ADAPTOR Linear Adapter
2020-08-28EI-66 ADAPTER LINEAR ADAPTOR SWITCHING ADAPTOR Linear Power Adapter Linear Adapter
2020-08-28EI-57 ADAPTER LINEAR ADAPTOR Linear Power Adapter Switching Power Adapter INTERCHANGEABLE ADAPTOR Li
2020-08-28EI-48 ADAPTER LINEAR ADAPTOR Switching Power Adapter INTERCHANGEABLE ADAPTOR Linear Adapter
2020-08-28EI-41 ADAPTER AC ADAPTER LINEAR ADAPTOR SWITCHING ADAPTOR Linear Adapter
2020-08-28EI-35 ADAPTER AC ADAPTER SWITCHING ADAPTOR Linear Power Adapter Linear Adapter
2020-08-28ER42 High Frequency Transformer
2020-08-2712-36W POE POWER SUPPLY
2020-08-27Transformer,Power Transformer,Ring Power Transformer
2020-08-27Transformer,High Frequency Transformer,Frequency Transformer
2020-08-2712-24W Medical Switching Power Supply
2020-08-273-12W Medical Switching Power Supply 3W Switching Power Supply 12W Power Supply
2020-08-2745W PD Charger,45W Charger,PD Charger
2020-08-2736-90W Charger,36W Charger,90W Charger,40W Charger,50W Charger
2020-08-2724W USB Charger,24W Charger,USB Charger
2020-08-2724W 2USB Charger,24W Charger ,2USB Charger
2020-08-2710-24W Charger,24W Charger,10W Charger
2020-08-2730-500W LED Power Supply 30-500W Power Supply
2020-08-27Related Information
What are the unique advantages of high frequency switching power adapter
2022-04-20General Mechanism Analysis of Switching Power Adapter.ac power adapter wholesaler
2022-04-19Suppression method of low frequency ripple of switching power supply
2022-04-16Why is the power adapter making noise?
2022-04-15When the power adapter is in normal use, what is the normal temperature?
2022-04-1490% of people use the car charger incorrectly, are you using it right?CAR POWER SUPPLY sales
2022-04-13The difference between a power adapter and a voltage regulator
2022-04-12Select the power adapter to determine these three adaptation conditions.SWITCHING POWER Vendor
2022-04-11Why is the original power adapter better than the non-original one?TRANSFORMER Production
2022-04-09What are the industries where the power adapter can be applied?CAR CHARGER wholesale
2022-04-08What is the difference between high-end and low-end power adapters? How to check after playing,CAR P
2022-04-07How to design a good power adapter,CAR CHARGER wholesaler
2022-04-07Customized desktop power adapter
2022-04-06The quality of the switching power supply determines the safety of electricity use,CAR CHARGER whole
2022-04-02What are the advantages of wireless chargers?
2022-03-30PD charger is a must-have at home
2022-03-29What are the main materials of the power adapter shell?
2022-03-26What is a PD power adapter? It can make charging ubiquitous
2022-03-25Slow charging? Try a fast charger
2022-03-24Do you understand the cause of abnormal noise in the power adapter?
2022-03-23Reasons for abnormal noise of the power adapter
2022-03-22Talking about the common problems of the power adapter
2022-03-19General manufacturer power adapter reliability test items
2022-03-18More energy efficient and safe power adapter
2022-03-17Five ways to solve the power adapter overheating?
2022-03-16What are the common connection faults of cottage shared chargers on the market?
2022-03-15How to use the car charger and matters needing attention!
2022-03-14Do you know the difference between a power adapter and a charger,CAR CHARGER Processor
2022-03-12The power adapter has a very wide range of applications,Audio Transformer
2022-03-11What is the development trend of the power adapter industry,AC ADAPTER
2022-03-10Popular recommended products
Inductance & Coil
2020-08-2736-65W Switching Power Supply
2020-08-29EI-28 AC ADAPTER LINEAR ADAPTOR Linear Power Adapter Switching Power Adapter Linear Adapter
2020-08-28MKD-571202000 ADAPTER AC ADAPTER CE ADAPTOR UL ADAPTOR Linear Adapter
2020-08-2824W USB Charger,24W Charger,USB Charger
2020-08-2730W PD Charger,30W Charger,PD Charger
2020-08-27MKS-1202000-36 Switching Power Supply
2020-08-29ER42 High Frequency Transformer
2020-08-27MKS-1203000EX Switching Power Supply
2020-08-2924-36W Charger,36W Charger,24W Charger,30W Charger
2020-08-2724V1.5A 36W Switching Power Supply
2020-08-2912-24W Medical Switching Power Supply
2020-08-27Transformer,High Frequency Transformer,Frequency Transformer
2020-08-27MKS-120200EU-36 Switching Power Supply
2020-08-293-15W Switching Power Supply
2020-08-2824-65W Medical Switching Power Supply
2020-08-2712W CAR CHARGER,12W USB CAR CHARGER,CAR CHARGER,12W CHARGER
2020-08-2724V21A LED Power Supply 24V Power Supply 21A Power Supply
2020-08-2712-36W POE POWER SUPPLY
2020-08-2712W POWER SUPPLY,12W CAR POWER SUPPLY,POWER SUPPLY,CAR POWER SUPPLY
2020-08-2760W 6USB Charger,60W Charger,6USB Charger,Charger
2020-08-27EI-57 ADAPTER LINEAR ADAPTOR Linear Power Adapter Switching Power Adapter INTERCHANGEABLE ADAPTOR Li
2020-08-2812VDC8A 96W power supply
2020-08-2830-500W LED Power Supply 30-500W Power Supply
2020-08-2772-200W Switching Power Supply
2020-08-29EI-48 ADAPTER LINEAR ADAPTOR Switching Power Adapter INTERCHANGEABLE ADAPTOR Linear Adapter
2020-08-2836-90W Charger,36W Charger,90W Charger,40W Charger,50W Charger
2020-08-2719V2A 36W Switching Power Supply
2020-08-28MKA-571652420 ADAPTER AC ADAPTER CE ADAPTOR UL ADAPTOR Linear Adapter
2020-08-28EI-35 ADAPTER AC ADAPTER SWITCHING ADAPTOR Linear Power Adapter Linear Adapter
2020-08-28