The generator in the rain: the six rules that keep the blackout out of the accident report

The rains change the generator's risk profile completely while the household's habits stay identical: the same machine, the same cables, but now on wet ground, under nothing, with damp fuel and connections that were tolerated in March. Every rule on this page exists because one failure mode in a wet-weather gen setup ends in a dead person, a burned compound or an appliance graveyard - and the honest part is that the whole protection package costs a plan, a length of good cable and a habit or two.

Position: the three walls and none of them wrong

A generator in the rains wants exactly what it wants in harmattan - outdoors, level, off the ground water reaches - and one thing more: a roof that is not a room. The open-sided canopy (or the wall-and-tarp arrangement with the sides the wind cannot close) keeps the rain off the alternator and the fuel cap while leaving the exhaust and the heat nowhere to go but out and up; a generator inside a closed porch, a half-wall corner with no cross-flow, or 'just for tonight' by the door is where this page's first body count lives: exhaust goes where the air goes, and the house finds it by morning. The carbon-monoxide rule that does not take a rainy-season holiday: fumes travel with wind through open windows, under gates, up through floor gaps - the machine's face points away from every opening, and nobody in the house sleeps between the openings. Ground, too: blocks under the feet, because the compound's puddle line rises where the machine sits in April and not in January, and a gen sitting in water is a gen whose frame is now live with the whole yard watching.

Cables, the law of them

Three facts and a rule. The extension cords that live behind the house are thin, often spliced, and rated for nothing that matters; indoor flex in wet service heats along its whole length and the 'warm cable' is the warning shot of its insulation's retirement. Water finds the connections: the socket you plug into in the rain is two pieces of exposed metal held near each other by hope - every joint off the ground, every plug in a drip loop (the cable dips below the socket and the water runs off the low point instead of into it), the connections under the canopy and not beside it. The daisy-chain of adapters is a parallel-circuit fire in a costume. And the rule that ends all three paragraphs: a generator that feeds the house through a socket - the plug-into-the-wall reverse feed, the 'car cable with two plugs' - kills the line worker or the neighbour on the same transformer the day the mains come back, is illegal in every jurisdiction that has words for it, and is the reason this desk prints, twice: the safe house connection is a changeover switch, installed and bonded, which means the generator connects through the switch and the switch says which source the house may have - there is no clever version of doing it with a plug.

Fuel, starting and the wet-engine day

Water in fuel is the rains' own generator killer: the cap's seal ages, the jerry can lives outside, a cup of condensation in a tank that runs rich ends as a no-start and a sump-full of patience, so the fuel can lives capped, upright and dry, and a machine that has sat gets its drain bowl opened before the pull. The plug and the coil's friends - the spark-plug boot, the air filter, the pull-cord hand - all hate damp, and the honest routine is a dry run at the start of the season, the carburettor drained if the weeks look empty, and the old stabiliser question answered the way small engines forgive: fresh fuel, not stored fuel. The earthling paragraph the installers skip: a standalone gen whose body is not earthed to a proper rod is a machine that decides which of its parts becomes the path of least resistance when something inside it sheds an insulation - the rod and the bonding are one afternoon with the right tradesman and the whole reason this desk can write 'if a bare frame ever tells your feet a story, the bonding is missing' as a diagnostic and not a rumour.

The switchboard of small habits

• Hands dry, boots on, one person at the gen while the other stays clear of the house cables when plugging in - the pair system is how the compound avoids the second victim.
• Everything off before the plug: the gen starts into a dead house and carries loads in ones after, the biggest motor (the fridge, the pump) last - the surge law from the inverter page applies here with more noise.
• The rain stops, the gen keeps running - and its cables are still wet; the pack-down is a dry-morning job, coiled off the ground, wound with the connections away from the puddle it just survived.
• Children, the tarp, the hot muffler: the three objects that belong in the same sentence every season the gen gets repositioned.

The desk's standing rule

Canopied, chocked, bonded, through a real changeover, with cables that look like they were chosen and not inherited - the compound that runs the same generator the same year the rains do is the one whose blackout story stays a story about the lights. The other version of this season's list of items is short, and this page exists so the household reads it before the rain, not after.