C
Colonel Hathi
Hi Chaps
I am about to install an 8.5 Kw electric shower and a 2Kw water heater in a small flat that has a 60A 1361 main suppliers fuse.
The flat has 1*32A ring with 3 sockets, 1*20A radial with 5 sockets and 1*6A lighting circuit with 7 points.
If I allow 2amps for the lighting (at 66%), 40amps for the sockets (100% for the 32A ring and 8amps for the radial at 40%), then 37A for the 8.5Kw shower and 3.2amps for the 2Kw demand triggered water heater (at 40% of 8amps),
I get a total demand of 82 amps.
Am I reading the Time Current Chart correctly?
It seems to flatten out at about 3700 seconds at about 110 amps for a 60amp 1361.
Does this actually mean that it can carry 110 amps for 58 minutes?
Does it mean that it can carry my 82 amp estimate indefinitely?
Is my 82 amp estimate actually reasonable in the real world?
I cannot imagine that 8 sockets and 7 lightbulbs would really pull 42 amps?
Any advice is much appreciated.
CH
I am about to install an 8.5 Kw electric shower and a 2Kw water heater in a small flat that has a 60A 1361 main suppliers fuse.
The flat has 1*32A ring with 3 sockets, 1*20A radial with 5 sockets and 1*6A lighting circuit with 7 points.
If I allow 2amps for the lighting (at 66%), 40amps for the sockets (100% for the 32A ring and 8amps for the radial at 40%), then 37A for the 8.5Kw shower and 3.2amps for the 2Kw demand triggered water heater (at 40% of 8amps),
I get a total demand of 82 amps.
Am I reading the Time Current Chart correctly?
It seems to flatten out at about 3700 seconds at about 110 amps for a 60amp 1361.
Does this actually mean that it can carry 110 amps for 58 minutes?
Does it mean that it can carry my 82 amp estimate indefinitely?
Is my 82 amp estimate actually reasonable in the real world?
I cannot imagine that 8 sockets and 7 lightbulbs would really pull 42 amps?
Any advice is much appreciated.
CH
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