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Try the OED definition of crime. "An act or omission (usually a grave one) against an individual or the State and punishable by law. Your interpretation would make criminals of us all for the smallest indiscretion. I'm sure that's what the Government would have us believe but I maintain that to...

Surprising how long a thread can last about such a relatively trivial matter. Surely though, to descrbe putting an isolator or some such on the DNO's board as a criminal offence is to debase the word criminal. Such terms should be reserved for Steve Wright, or Ian Huntley. A technical breach of...

The Aqualisa visit referred to above is the second by the engineer. He visited last week and replaced (I believe) the heater unit or heat exchanger. I'm not certain because I was out and he dealt with my wife. However Aqualisa report that the part replaced was not faulty. The MCB is rated at...

Thanks, Spark123. The Aqualisa service engineer is calling tomorrow. I'll get him to check the current draw on the shower if he has the appropriate equipment.

I expect the answer is somewhere in this forum but if someone can quote me a figure or point me in the right direction, I would be grateful. I am seeking to establish what sort of overcurrent would cause a 45 Amp Type B MCB to trip in approx 10 secs. The device is protecting a shower circuit...

Latest update: The replacement MCB is now tripping, so clearly the fault seems to be with the shower unit itself and not the MCB. Good news is that the unit is under warranty so I hope the Aqualisa service organisation is as good as it is cracked up to be. The good thing is that the protective...

Thanks, Adam. At least I am reassured that in using MCB and RCD protection, I have done what I can to protect my installation- and my house!

Thanks for comments, gents. I'm still not certain if a device such as an MCB can fail in a "non failsafe" manner. If the fault had been on the shower,surely this would have produced a leakage to earth, tripping the RCD. Would not he MCB in these circumstances only provide overload protection...

I have now replaced the MCB and everything seems to be functioning normally. It looks as though the MCB has developed a fault. I have always placed great store by MK equipment and this is the first failure I have encountered. To those of you who are professional sparks, is MCB failure a common...

I take it you mean the double pole pull switch which isolates the shower unit. This appears OK Certainly it can be switched on and off without tripping the MCB . Perhaps I should have said that it is when I turn the shower on that the MCB trips.

My electric shower is protected by an MK sentry unit with double pole RCD 30mA trip and MCB rated at 45 amps. The cable is 10mm Twin and Earth and the shower is rated at 10.5kW. Two weeks ago the MCB tripped. I reset it and it has performed ok until now. Today it tripped again and will not...

I'm no expert, but surely if clause 25 says it is unlawful to "make" or "alter" a connection from the distributor's network to a consumer's installation then it seems to me to be unlawful to replace a main fuse after cutting the seal and removing the fuse. Isn't replacing the fuse "making" the...

Would the Megaman GU10 Compact reflector fit the bill?

Replying to ricicle. No I am not absolutely certain. However, it isn't asbestos. It could be a plastic material of some kind. I'll do a daylight check

Thanks for that. However am I right to rule out the use of low voltage halogen lamps in this location?

I want to install some low voltage lighting over the front door and garage door of my bungalow. This could be run from an RCD protected socket in the garage (which is integral with the house and contains the consumer unit) or tapped in to one of my two lighting circuits. My plan is to recess the...

Thanks Mandate. Obviously my terminology is wrong. I used the term "call"for terminal 3 rather than "switched live" Terminal two is obviously for what I know as the accelerator heater and if I understand you correctly, that will take the neutral back to the terminal block and allow the heater to...

I have recently moved into a bungalow in which the radiator response seems "sluggish" By this, I mean that when the heating fires up, everything gets nice and warm but when the pump stops, the thermostat is slow to respond to the temperature fall. The stat is a Honeywell T6360B with the live...

Thanks guys. That was really helpful info. It looks like a split load unit for me. However, I should avoid falling down stairs as we recently moved into a bungalow!

Thanks for that Adam. I agree that RCBOs are comparitively expensive, but what price safety. Just on the point of RCD protection, do I take it that it is truly un-necesassary for such as lighting circuits or is there the problem of inconvenience from such things as a bulb blowing and tripping...