mark
Well-known member
Major Major disaster nearly beset us......
'someone' had tucked away a wee remote relay as an isolator for the batteries -dual pole affair, littel switch to throw it tucked away under the helm, sort of 'immobiliser' I guess, sound idea except.......
the thing is (was) rated at 25amps. Engine cranking power (according to the book) 225A

so a wee bit underated.
so ... one night last week the relay fails, melts and goes short circuit... that is short circuit to a bank of batteries rated at 600Ah, effectively creating an electric fire element giving 7.2Kw of heat!!
all the big battery/starter cables totally and utterly torched. how the thing didn't catch fire beats me, especially as the offending wiring was tucked neatly underneath 200 gallons of diesel in a nice oily wooden boat
terrifying prospect, if it had gone up, don't think there's be many boats left in St Petes if it had either :red::red:
so need to source some new cables, need maybe 10 metres of cable, Heavy Duty battery starter type cable
any ideas where in the north east anyone??
seen a few sources online, but its not cheap!
'someone' had tucked away a wee remote relay as an isolator for the batteries -dual pole affair, littel switch to throw it tucked away under the helm, sort of 'immobiliser' I guess, sound idea except.......
the thing is (was) rated at 25amps. Engine cranking power (according to the book) 225A


so a wee bit underated.
so ... one night last week the relay fails, melts and goes short circuit... that is short circuit to a bank of batteries rated at 600Ah, effectively creating an electric fire element giving 7.2Kw of heat!!
all the big battery/starter cables totally and utterly torched. how the thing didn't catch fire beats me, especially as the offending wiring was tucked neatly underneath 200 gallons of diesel in a nice oily wooden boat
terrifying prospect, if it had gone up, don't think there's be many boats left in St Petes if it had either :red::red:
so need to source some new cables, need maybe 10 metres of cable, Heavy Duty battery starter type cable
any ideas where in the north east anyone??
seen a few sources online, but its not cheap!