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time
Time is the continued sequence of existence and events that occurs in an apparently irreversible succession from the past, through the present, and into the future. It is a component quantity of various measurements used to sequence events, to compare the duration of events or the intervals between them, and to quantify rates of change of quantities in material reality or in the conscious experience. Time is often referred to as a fourth dimension, along with three spatial dimensions.Time is one of the seven fundamental physical quantities in both the International System of Units (SI) and International System of Quantities. The SI base unit of time is the second, which is defined by measuring the electronic transition frequency of caesium atoms. General relativity is the primary framework for understanding how spacetime works. Through advances in both theoretical and experimental investigations of spacetime, it has been shown that time can be distorted and dilated, particularly at the edges of black holes.
Throughout history, time has been an important subject of study in religion, philosophy, and science. Temporal measurement has occupied scientists and technologists and has been a prime motivation in navigation and astronomy. Time is also of significant social importance, having economic value ("time is money") as well as personal value, due to an awareness of the limited time in each day and in human life spans.
Hi everyone,
Long time lurker here, my project is simply my late 1800s house with various horrors hidden on every supposedly simple job.
Although not all horrors are electrical I do find this forum great for trusted reference when I encounter anything untoward and can usually find what I need...
Why is it that so many timers, programmable thermostats (and the like) are still manufactured without the ability to automatically change the time between GMT and BST at the right moment, despite being sophisticated in so many other ways?
OK, a rhetorical question and I know there are some that...
Hi all
Done a EICR on a flat which had the link fuse in the service head .. had an earth wire coming off the orange cable to an earth block.
Carried out a ZE test got 14 ohms and got same reading when did ZS on the board (yes did disconnect earth for ZE) .. the main earth is wired into the...
Hello,
as a relatively newly qualified electrician (mature trainee who completed his NVQ in 2023) today was the first time I've seen a melted plug. It was at a rental property and the tennant had a fan heater hanging on to what was left of the plug. I'm guessing that the fan heater had been...
Hi all,
Curious one and hopefully some one of you could give me some advice.
A customer has had a steeltech shed installed at their premises. A large one. Wants 3x light fittings and 5 double sockets intalled. There's an electric roller shutter door on the shed also to be plugged in. My plan...
Hello all
Well, been putting it off, but I need to upgrade my 17th edition to the 18th.
Not been a practising sparky for over 5 years, but I have been unemployed for 6+ months and hatefully... I'll have to go back to what I know (well, used to).
Not ideal but hey ho.
Found a couple of online...
Hi
I'm looking for some advice for adding a time delay on my parent's shower room fan.
My parents had a section of their garage converted into a shower room with toilet. But the builders did something a bit odd. They fitted a pull cord light switch by the door and then a separate pull switch...
Hello, 1st time post from an amateur. I have some old Habitat decorative lights that are powered by a transformer. There seems to be a break in the wiring as the lights go off when the wire is moved around so I was going to shorten the wire. The problem is that I can't find a replacement...
Autumn is now here, it's that time of year where the clocks go back and lighting control moves forward. A time when UK customers with gardens want to light up their outdoor spaces earlier in the evenings; meaning they'll be looking for new lighting and a reliable method of wireless switching...
Having to wire around a messed up output for a month or so. Some sort of program corruption is keeping the central lubrication system from operating at the correct intervals. I've never had to do this so I'm not sure which sort of On Delay/Off Delay setup could be used. But I need a 1 minute...
Hi guys
Have a circuit its OCPD is a C type 80A 10ka 60898 MCB with a pfc of 1.11ka. On the log log graph for this device I’m struggling to understand the time for it. It only goes to 800a?
I’ve spoken to the NICEIC who say it would operate withing 0.1 seconds but I’m struggling to see how...
Are you a skilled electrician looking for a challenging and rewarding career opportunity? We're seeking a dedicated Electrician to join our team at HMP Northumberland. In this role, you'll play a crucial part in maintaining and improving the infrastructure of the prison, ensuring its safe and...
Bathroom with an electric shower wired to the latest regs with a 40A MCB and RCD protection. Is the disconnection time 0.4s or 5s.
Looking at the regs it states fixed equipment up to 32A is 0.4s so everything after that unless it has a socket outlet can be 5s, but its a bathroom where...
Wireless switching can really simplify an electrical installation. The FERRET is an RF unit that can add remote control to applications. It's tiny size makes it perfect for fitting in small enclosures like the WISKA range.
This month, @rfsolutionsltd have teamed up with @wiskaukltd to give away...
Hi,
I purchased a Time twin strand bell cable with a rating of 12-30V, 2A, low voltage, not for mains use.
I wish to use this for installing our new Ring wired doorbell. We don't have an existing doorbell wired setup so it would need to conform to a DIN rail transformer specification of 24Vdc...
Hi I’m 40 years old, finished Level 3 diploma college.
I’m looking to find electrician company in the Midlands to improve my skills and to be full qualified electrician in the future.
I’m ready to work on minimum wage, couple days of week .
My phone number is 07561389603.
Any news send me...
This is quite lengthy so get comfy...
I had a bizarre call out relating to a job I attended about five years ago. The situation was they were getting regular short term low voltages across all phases, only a few seconds, but enough to make lights flicker.
In the intervening years they had done...
I've scoured the internet for what these do and am coming up short on finding information.
What are these for? (ie what specific problem are they trying to solve) and why do they need to be time delayed?
Thanks in advance
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