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For direct soldering

Safety and Usage of High Voltage Power Supply 2

Handling high voltage output cables

There are a variety of ways to make connections when applying high voltage. Here we describe an example method for 
handling high voltage cables, and precautions that should be observed.

In order to avoid discharging electricity in a manner that 

will cause bodily harm, either cover the object with an 

insulator that has sufficient dielectric strength, or cover 

it with an object that has ground potential so that electricity 

is not discharged to a different location.

An insulated conductor or a ground potential conductor

Secure the cable in a mechanically method so that any force exerted on the cable

may not concentrate on the soldered area.

In the case of a conductor,
establish a ground for it.

Smooth the soldered area to finish it so that no “pointed” edges can be seen.

Something that hight voltage
will be applied to.

An insulator

Output cable

Finish soldering so that “pointed” edges is found.

When connecting high voltage cables together

When connecting high-voltage cables together to create a long high-voltage line, it is difficult to keep them connected simply by 

linking them together as described above. Therefore, cover the connections with heat-shrink tubing that has dielectric strength. 

Note that there is a risk of dielectric breakdown in the tube if its withstand voltage is not sufficient. 

If the insulation withstand voltage of a single tube is not sufficient, use double or triple tubes to ensure sufficient 

withstand voltage. In addition, if there are rough surfaces on the solder, dielectric breakdown might occur even if the tube has 

sufficient insulation withstand voltage. Please be sure to make rounded solder joints.

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Summary of Contents for EQ Series

Page 1: ...ith care We use ours carefully so we ll be fine We never had any problems so we re probably ok But are you sure there is nothing you ve neglected or overlooked Let Matsusada Precision which specializes in the manufacture of high voltage power supplies show you the correct way to use a high voltage power supply ...

Page 2: ... to occur if there are sharp points such as solder on conductive parts Make sure there are no sharp points on conductive parts At 10 kV or more coronas are even more likely to occur We recommend that you use round electrodes and completely cover the conductive parts with the insulator At 30 kV or more discharge tends to occur easily and therefore measures to reduce the electric field such as a cor...

Page 3: ...h a ground for it Smooth the soldered area to finish it so that no pointed edges can be seen Something that hight voltage will be applied to An insulator Output cable Finish soldering so that pointed edges is found When connecting high voltage cables together When connecting high voltage cables together to create a long high voltage line it is difficult to keep them connected simply by linking the...

Page 4: ...igh voltage is applied to the terminals Touching them could lead to a fatal accident With high voltages of 300 V or more there is a risk of electric shock due to the discharge of electricity even if you do not touch an electrode directly Either cover electrodes and other high voltage areas with insulators that have sufficient dielectric strength or cover them with grounded conductive material to e...

Page 5: ...However when the ground is disconnected in some cases the charge might not have been completely discharged or the charge might be recovered after some time has passed Be sure to completely remove all charge from output cables before touching them Short the output to ground 7 Disconnect the input line before touching If you have to touch the inside of the power supply for some reason follow the ins...

Page 6: ...ct on your own This is why performing any operations with wet hands is strictly prohibited These numerical values are conceptual If only a weak current flows either because the capacity of the power supply is extremely small or the impedance similar to resistance of the circuit is large the danger will be less As voltage increases the air insulation is broken and electricity is discharged leading ...

Page 7: ... the accident site 2 If you start artificial respiration continue performing artificial respiration correctly either until the victim begins breathing again on their own or until medical professionals are able to take over 3 If there is another person available to perform artificial respiration with you in alternating turns do so continuously without interrupting the rhythm Electric shock might al...

Page 8: ...act us for more information Contact with phone or fax Contact us for various kinds of Power supplies Contact Us www matsusada com USA North Carolina office TEL 704 496 2644 FAX 704 496 2643 Other country or region International office in Japan TEL 81 6 6150 5088 FAX 81 6 6150 5089 CAT pub 2020 09 rev 02 A1025 Contact Us Headquarters Factory 745 Aoji cho Kusatsu Shiga 525 0041 Japan www matsusada c...

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