Hot answers tagged

45

You got a bad roll of the dice. Very good ideas and attempts that would work in more normal soil conditions. The problem is, if you continue then you will likely undermine the soil because that small rock will fall into the hole from the sides. That will be very difficult to back fill properly and over time it will settle and form a slight ditch / depression....


44

Edit: This is sounding more and more like a problem with either a neighbor's electrical or the utility's supply. See last entry. DON'T get in that hot tub again! The "very small" shock was due to high impedance between you and the current. Impedance is extremely luck-based. Someone getting out of the pool might splash water where it had not been before, ...


40

In the US, no the USB ports will not have power when the outlet is not powered. Most outlets in the US don't have power switches on them, so if you switch them off there is no way for power to be provided. In the UK, outlets often have power switches. In that case, your USB ports are usually powered while the outlet switches are off. This is because the ...


37

I think you have likely answered your own question. The use of an extension cord could cause a voltage drop, especially since the factory cord is long already and the spa probably has an electric motor that would be damaged by voltage drop. Also, cord/plug connections are not weatherproof. This is a CYA (cover-your-arse) by the manufacturer. Your plan of ...


32

Change your wiring method You started with non-metallic jacketed cable, requiring 500mm of cover. That's similar to the US where cover must be 24" for that type of cable. However, the US has other wiring methods that only require 6" cover. (e.g. 150mm). This involves a tough metal conduit that you can't pierce with a shovel blade. The pipe is pricy but ...


30

Is it supposed to be like that? There needs to be air circulation in unheated space to prevent condensation causing rot. It's freezing up there That is good. It means your loft insulation is working. I'm more concerned about animals entering the house. I found fixing wire-mesh externally to any small gaps at the top of the walls keeps unwelcome ...


29

Obviously, safety considerations like isolating that circuit are paramount, and note that even if that circuit's breaker is off, then the neutral touching earth can still trip the Earth Leakage Circuit Breaker... Find the socket / box that that wire goes to, disconnect it, then pull it out from the other end (which you need to find - either in the roof ...


28

I applaud your effort at frugality and environmentalism. The "throwaway" mindset peeves me to no end. Many folks change out fixtures just to change the look or size, and there are plenty of good units to be had. In fact, I'll soon be swapping out a perfectly serviceable round-bowl toilet for an elongated one just to better accommodate an add-on bidet. Some ...


28

The basic reason is that if they said, "Feel free to use an extension cord", someone would connect up a 50m, 3A, two-core cable with no Earth and a loose socket. They would then sue the company when it didn't work (too much voltage drop across long thin extension cables) or it caught fire (current drawn exceeds capability of thin extension cables) or they ...


20

Too narrow to be practical in soil with normal obstacles. Some may advise renting machinery, though most typical "trenchers" are likely to have an expensive "oops" when they meet your buried debris. So if you rent equipment, you'll want a mini-excavator. For a 7m (~23ft) long trench, I'd suggest (& probably have on several other questions) the good ...


16

I have dug hundreds of trench’s in my life and never seen one so narrow , wow. I use a narrow spade maybe 6” to 8” or . 2 meters wide to go down 18” max, and a full width of 10” or .25m wide to go down 24” or . 6 . I am amazed that the ground is holding. The deeper I have to dig the wider I make the trench . Even with a machine I usually dig at least 6” &...


14

Given the size and location of the wire, It looks like you hit the range feed which may draw upto 50 amps. Such high current applications require greater care in making connections such as splices. in general there are two safe approaches to repairing this damage. The easiest but most expensive (since you have conduit and assuming that it is continuous) is ...


13

I had an electrician to check out the problem and: I am in the UK and there is only live and neutral at the meter (earth and neutral are the same wire at that point) The Hot Tub water is directly conncted to Earth The mains electrics in my property all checked out fine, incoming supply fine. No faults with the Hob Tub RCD's tested and working He is ...


11

Insulated crimped connections are allowed in the UK, and considered maintenance-free so they can be concealed. A proper ratchet crimper is essential. The whole should then be wrapped in self-amalgamating tape.


11

Having done this to pull 40A 220v back to my workshop, you're digging too narrow a trench. Get a shovel out and dig the trench at least the shovel-width. You're going to want to go down at least 18" (to get below the frost line). Wrap some tape around the shovel handle at your desired depth, and use that to measure progress. My house has been on the lot ...


8

My answer assumes you are certain there's nothing significant or structural buried under there and it's just backfilled with construction waste over the years. As a kid I dug my fair share of trenches on the family farm for various reasons, but I'm no expert here. I think the answer is just a pick mattock aka pick axe hoe (with a pointy side and a slightly ...


8

I have always heard that the reason for the "no extension chords" is because they are not supposed to be used for permanent installations, only temporary, i.e., Christmas lights. Extension chords are pretty cheaply made and the ones I have had fail on me always fail at either the male or female end. If you're going to keep your tub inflated year-round, think ...


7

Transformer, rectifier, regulator - aka, a USB power supply. There are, of course, the small switching supplies that plug in, as seen as phone, ipad, ipod (or any other USB device) chargers. I know that there are power outlets (ac) with built-in USB outlets available for the USA system - depending on the speed and conservatism of the UK electric regulators,...


7

That area is supposed to be open for venting the roof. However it should be covered with a material made of aluminum or vinyl with a type of screen to allow air to enter but keep small animals and rodents out. To get an idea of what I am talking about GOOGLE "soffit and fascia",and you will see typical installations. This roof area should be cold unless you ...


7

That looks like a Euro cylinder lock. You can remove it by undoing one bolt in the edge of the door then insert the key, turn an eighth of a turn and pull the cylinder out. Then measure the lengths in the diagram below. Or just measure externally. You should get an anti-snap lock which means you need to specify which of the measurements applies to the ...


7

Sometimes power supplies/transformers can hold voltage in capacitors to make it look like they are on for a short time after they are unplugged. Rather than checking with a tester, plug a phone (or anything that actually consumes power) into the charger and operate the switch to see if it is still on when the switch is off. It's not impossible for the USB ...


7

If you are going to spend good money to build an addition on your home why would you even consider someone else's thrown away junk. Spend money on "up to date" new and modern water saving toilets, sinks and faucets. If you supply them with old junk the plumbers will curse you for making them use this old stuff. If the plumbers have to clean the old stuff ...


7

The manufacturer will be guarding against both voltage drop on the supply (which could affect the operation) and creating too high a fault loop impedance (which could affect the disconnect time of the circuit breaker in case of a fault). At a guess, a minimum length, heavy duty extension lead will likely be fine. However, for peace of mind, if you can ...


7

The issue is electrical drownings One thing people really don't understand about electricity and water: a shock that would be trivial anywhere else is fatal when water is around. You're hit with a triple whammy. First, ordinary water and wet skin conduct electricity well, meaning a shock you barely felt before, now has much worse effect. "Water doesn'...


6

You should not need to select a pair from the four live and neutral wires. In a ring main the incoming live is always connected to the outgoing live, the incoming neutral is always connected to the outgoing neutral. To add a second socket on the opposite wall you connect a new cable to all the existing cables - so you get three reds connected, three blacks ...


6

Rings Your quotation has a UK source. In the UK a "ring" refers to a ring-main also known as a ring-final circuit. This is the typical way UK houses have provided power to wall-sockets (outlets) since the 1950's. They are called rings because they are connected in the topological equivalent of a large circle. There are two routes back to the consumer unit (...


6

A DIY repair may be possible, though ugly, even if the wires are trapped so you cannot pull through any extra length or a replacement length of cable. Attach a 1-gang box to the wall in exactly the right place so you can cut the cable and bend the ends upwards into that box from below on opposite sides. Join Live to Live, Neutral to Neutral and Earth to ...


6

Long way around? There used to be something in your back yard. Maybe a number of somethings over the years; I understand people have lived in the UK for some time. Maybe your direct line to the shed intersects where something was knocked down and is still where it fell? Consider digging test holes at other sites representing possible paths to the shed - ...


5

it's usually pretty easy to change the fittings: make sure electricity is off (turn off the breaker that powers the light) double check the electricity is off loosen the screws that hold it up on the ceiling and keep the wires attached. Remember which wire is connected to the ground (bare/green or yellow green striped wire), live (red, orange or blue wire) ...


5

No hinge amigo. Time to get new windows if you want these to open.


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