Replace Knob and tube

[shortcirkit]

The situation is upgrade/replace old fused knob and tube panels with no ground wire,ridgid waterpipe used in old system as a ground and replacing with new EMT to Concentric KO"S on
New QO square D MLO125A 12slots. There are six panels. 120/240V 30A Fused main.using #10THHN for feed and bringing in a #10 ground (for future upgrade to the rest of the system) and grounding that to all ground bar in new panels and grounding to main junctionbox.
Every other panel is being fed on one leg ( RED )
and the other panels are being fed on (Black) and only one neutral.
The load on each of the panels are 9 condesent 60W
and a GFCI below each panel.
The question is do I use the bonding screw for the NEUTRAL BAR to bond the subpanels, or leave it out as an isolated system
[I am also thinking there maybe the outside chance to changing luminares to florecent fixtures]

 

[al hildenbrand]

Around the area I work in, the "K&T panel" is, by local ordinance, DEFINED, as overloaded.

I can't do what you are describing (replace the fuses with circuit breakers) without increasing the feeder capacity.

In you description, I pick up enough details to suspect that increasing the feeder capacity would lead to a bigger job. . .the service size increase.

Even after putting in the circuit breakers, it sounds like you have only 3600 Watts of let through from the service. That's a microwave and a blow dryer. . .with nothing left over for lights, the coffee or TV.