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I've got a large USA artist music tour starting soon across Europe so we're having to sort out lots of reducer transformers etc, no big deal. But...
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Im an apprentice spark and have been sent to look at some bonding work at a restaurant as apparently staff have occasionally been getting shocks...
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161
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Hi, I'm designing a wireless switching system for a cattle water trough. I'm looking for a float switch which would send a wireless signal to a...
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6
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315
Hello, not sure if this is allowed but here goes, I was recently staying on a caravan park along with many others, (touring caravan not static)...
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6
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228
I've been asked to install Schneider AFDD's into a single phase board. I'm to supply the board with RCBO's and AFDD's. I've purchased the new...
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210
Hi I got called out to a faulty star delta starter on an old Stenner band saw Monday (was getting stuck in star and blow fuses) - So I ordered a...
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The machine is a Sunnen CK-21-E used for Honing. I cannot find any manuals but ill post the tag. I dont believe its multi-voltage which would make...
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454
Hi all, I've got a small catering business out of a converted horse trailer and purchased an inverter generator to power the trailer, mainly just...
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663
Morning All, I am currently involved in a project for 2 under pavement vaults both have been stripped out to allow for full tanking (wall and...
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269
During a recent EICR the RCBO keeps tripping , i measure leakage of 2.6 ma when clamped around line and neutral, when i clamp the cpc i get over...
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311
hello thanks in advance this is my third post. my question is if i can use an alternative to this manual starter? even maybe just an industrial 3...
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444
Hi all, We've been asked to upgrade 450+ 6ft single fluorescent battens to LED. The client had requested for each fitting to be connected into...
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357
This must be such a noob question but I cant seem to find any answer out there: Background: Installing a 10hp Air Compressor 230V 30A 3Ø. The...
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338
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I ran 208 v power to a rottler em69p cnc machine. it calls for 208/240 v 3 phase. 60amp rottler em69 installation manual everything is wired using...
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Hi all. Just a quick question, for you guys. I have received a phone call today with a request to carry out a commercial EICR on a chip shop...
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I am aware that a BS 61008 can't be used for overload protection but is there a reason that it can't be used for fault current protection.
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569
Edited - please read right to the end! Grateful for any advice regarding CT metering which seems to be generating inaccurate/implausible...
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Evening everybody. It’s been a while since I’ve asked for the collective brains advice but this one has really got me stumped. I’ve been asked...
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3
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564
Hi A customer has a new farm shed going up supplied also from a new 100KVA transformer right outside. The supply spec states that PSCF could be...
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726
I have been having a discussion on site recently : In an industrial situation, in the main intake room which contains the metering equipment...
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2
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439
I have retired from Solar installs and now finally looking to do my retirement project - Daimler V8 2.5. I needed some powder coating done but the...
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1
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298
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Hi all, I recently bought a CNC router and dust collector and need to connect it to my 3x380v+N power source. I want the CNC router connected to...
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382
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I have a single phase system that uses 320 amps and 240 volts and I rewire the circuits for 3 phase what size generator would I need and how many...
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I have been through a time served electrical apprenticeship, achieved LV 3 2330, AM2, NVQ, and all other stuff to do with, 6 years ago. I do not...
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19K
I've lost touch a bit with permanent install generators and combined AMF controls over the last 3-4 years - what Manufacturers are people using...
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496
Just had a call from an M&E client of mine and good mate asking to pick my brains.... large 3ph biomass boiler with (I assume variable speed)...
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2
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426
Across the pond in the US we allow utility-owned transformers to be tapped up to six times but an identically set up customer-owned transformer to...
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1K
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Hi there, I got a call to a job, table saw (wood) tripping C/B straight away. 4kW motor on Star Delta Starter. So I get to the job, after some...
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Here’s something I’ve never thought about until now…. So, we use the adiabatic to return an S based on the usual parameters and for arguments...
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I am servicing a machine that uses a 3 phase power supply. Some of the components (motor, compressor, fan) use 3 phase power. Other components...
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well i have seen it all ,so the story begins a customer ring up asking me to install some cctv for her and husband is mostly bed bound ,so the...
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1
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484
Hi everyone I have a job that requires a 63a 1ph supply to a small unit, the main distribution panel is a Crabtree Powerstar. I am struggling to...
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0
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568
I'm going to need to make some 'temporary' UPS systems next year - I'll have to find possibly some rack mount units that can live in an outdoor...
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3
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364
Hi All I am new on here and looking for some advice on converting a car ramp to single phase. This particular ramp is sold in 2 versions single or...
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Hi all, looking for a bit of advice and confirmation on my proposed plans for a SWA sub main to a ISO metal storage container. I've calculated the...
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Just sat contemplating life and realised i don't think i've ever seen any RCD protection on the boards we maintain/install at work. I've seen...
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961
Ive never used the stuff but would like to hear others opinions?
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So Allianz insurance inspector has pulled up a C3 ( I know it’s not mandatory) about magnetic effects from a circuit. so we have a small 9-way...
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I've an M&E client who wants me to replace a whole load of 'tired' 5v panel lamps on BMS systems for LED. My spidey sense is pricking my brain...
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481
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