maintenance

Fuses are dead simple and don’t require much maintenance, but they have some disadvantage too.

And, especially if they’ve been abandoned, it can be difficult to enforce maintenance requirements on the owners.

Every year, the community gathers to repair its walls and replaster them, turning maintenance into a festival.

To be clear, that still means it can have occasional glitches or scheduled maintenance, or even have parts of it break entirely.

When the barrier had to be shut down for maintenance in 2009, toxin was added to 10km of this canal, to kill everything in it, just in case.

All that different equipment requires lots of maintenance.

One of the reasons that we have multiple barriers is that they do require maintenance.

So utilities try to limit this I&I to the extent possible through system maintenance, and engineers designing sewers try to take it into account when choosing the system capacity.

But many engineering disasters have come not at the expense of bad design, but actually bad maintenance, so long-term durability can be just as important to public safety as other design criteria.

When power is lost for more than a day or two, these facilities won’t be able to continue functioning without additional fuel and maintenance.