timeclock
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C
Twin Immersion Thermostats
Hi again, I tend not to get involved with heating systems, but I have just been on a site where they have had a new Hot water tank installed with 2x immersion thermostat heaters in the tank, each of these is rated at 3Kw. Each has a separate feed with its own spur. There is no economy 7 or... -
E
Timeclock Tripping RCD
I have a 6A C Type RCBO feeding a Horstmann 20A Timeclock and the switched-line operating AC1 on a 4P 24A contactor (NO). There are three lighting circuits going into the contactor, all fed from individual 6A B Type MCBs (on the RCD side of the DB). Why should the RCD sometimes trip when the...- earthboy
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- Replies: 5
- Forum: Talk Electrician
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How is 0.2s disconnection time met on TT?Yes Given that an RCD may take up to 0.3 seconds (300 ms) to disconnect it would appear at...- Latest: PS Electrics
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