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Yes, understood. in this case, as you have divined, I am trying to join many cut ends of 10mm together.... can you reccommend a more suitable product for what I am trying to do?

Trying to source a product for joining up scrap lengths of 10mm2 conductor. Like the look of Hellerman Tyton Sigma range of linetaps but cant find dimensional drawings for them. the catalogue page describes the S10 product as "10mm2 cross section cable" the catalogue also says that "all sizes...

PLease could any experienced hands advise where I might get a match for Bartol SG13 guttering? I have replaced a roof and need to stretch the guttering either side by a few inches, but would rather not have to replace the whole guttering.... rough dimensions measured from the bracket I pulled...

I have a sonar PC based on a gaming Gigabyte GA-965P-S3 (rev3) socket 775 motherboard. I recently had to replace the motherboard, as the original had failed. As these motherboards are no longer current, the unit I replaced it with was ex-equipment - so may not be 100% itself, but I have to...

We have a NEFF dishwasher, new a couple years ago. only just run it up. at the end of a cycle the little pill that you put in a compartment is always not fully gone the washer is conencted to 1 cold water supply which is somewhat lower in pressure than the rising main pressure. why might the...

INteresting; - That (the lid not being locked home) was my first thought too. Whenever I have used it I have found the quarter-turn interlocking flange locking procedure to be somewhat harder than I would have expected for an appliance designed for domestic use. It is possible that my...

We have a rather new (4yr old) Prestige pressure cooker, which seems to destroy its own gasket. It appears that the gasket succumbs to the heat and expands or otherwise becomes mis-shapen then fails to seat properly. The first time this happened I simply replaced the gasket, but exactly the...

Actually the comments regarding the "copper oxide layer" were something that did not initially cross my mind; so thanks, Bernard, for actually the only practical response so far on this thread. what I was thinking of here was practical cases when it would prove unsafely misleading to use a dc...

regarding the DC effects; is it possible for a chronic dc bias to appear across a mains supply? if so, by what mechanism(s)?

Thanks for some useless responses. I am well aware of the theory of how an earth impedance might differ from 0hz to 50hz and onwards down the wavelengths. I was simply interested to hear of any real-world anecdotal evidence of such.

under what practical circs might an earth impedance measured at DC be different to an earth impedance as seen by a 50Hz ac source?

We are trying to eliminate some problems with a pair of large and rather ancient dynamos (10kW ish size). the dynamos are compound-wound: - series field coil in the power take-off circuit - shunt coil controlled via rheostat to trim the line Volts. the behaviour of these ostensibly...

Would it cause any serious problems to run new (ie, modern) white goods (dishwashers, washers, driers, cookers) on a 60Hz 220-230V supply? I believe the motors in the motorised appliances would run a bit faster at 60hz than at 50hz, thereby slightly reducing their lifespan... but would...

What is the correct technical designation for "Normal grey twin&earth" cable? is it suitable for use in boats/ships/cars/caravans? if not, why not? in which conditions/environments is it designed for use, and why?

Is there a definitive method for installing a PL259? what are the little holes (sometimes circular, sometimes rectangular) actually for, in the core part of the connector? Ive just been working with a respected ex-RO and Electrician of many years experience who insists that no soldering is...

Yes I am! I am also very interested in best theory and practice regarding ELV on mobile units so that I can back up why something "looks bad" with why something might be bad. For instance, What, if anything, is wrong with using a mains MCB panel as a distribution board on a 24V boat?

I disagree The exemplum reg that springs to mind instantly runs sthg like this: Control gear should be installed so that it is operable by persons with limited reach. One way of satisfying this requirement is to install sockets at 400mm above floor and switches at 110mm..." (or something like...

Is there a "definitive" and/or "authoritative" set of regulations applicable to UK/Europe/The World regarding wiring of mobile units such as caravans, yachts, powerboats, fishing boats, portakabins where the supply is primarily ELV (12 or 24V) I'm after a document (ideally a book to buy) in...

Ive been asked to install a small CCTV system in a harbour authority's building. Nothing special, all 13A plug-in ELV stuff. I suspect that there will be one or more jobsworths who insist that all the stuff is PAT-tested before it crosses the threshold etc. Can anyone advise what the...

In a Previous Life, I had the dubious privilege of working with various trades around SE UK and this included some very salubrious parts of London. This brought me into occasional contact with a tranche of City Society generally called "derivatives traders"... I believe they are the tribe...