Connecting a powerful load to a surge protector together with a computer

Dmitry asks:

A power filter (permissible power 3500 W) is included in the outlet, an uninterruptible power supply (computer, monitor, etc.) is inserted into it, and a water cooler with a heating / cooling function. The first question is how justified is such a connection, connecting devices like kettles with high power to surge protectors (there are not enough sockets).

When the device connected to the surge protector begins to consume power, they turn off for a few seconds headphones, mice connected to the computer, and other devices connected to computer. This is weird. I would assume that this is due to a jump in power consumption, although the cooler power is only 650 watts.

Yes, everything is correct, when the cooler is turned on, there is a small voltage jump, for this the surge protectors are created to filter them. It is better not to connect coolers and kettles to one filter together with a computer, they should be on different filters.

But in general, powerful devices can be connected to filters, only if the power of the devices, or rather the current consumed by them, does not exceed the rated current of this filter itself. That is, if the filter is 16A, then a load of up to 3.5 kW can be connected to it. And do not use cheap Chinese filters, because often these are not filters, extension cords with a button and do not contain any filter elements. The filter must be heavy and relatively expensive.