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Questions and electrical advice in the Commercial Electrical Advice - Discussions on Three Phase Supplies, three phase machinery and motors, DOL starters, phase sequence, running steel conduit, trunking and other questions on industrial and commercial electrical installations and maintenance. Commercial Electrical Talk. Also notice our Electrical Advice Forum and our Industrial Electrical Forum.
Some popular forums: Electrical Forum - Electrical Wiring, Theories and Regulations - Periodic Inspection Reporting & Certification - Electrical Jobs
Absolutely losing my brain here guys
What I would like to be able to do is power our 3 phase motor on a single phase supply.
Thought I had it...
Hi Guys,
We have a CNC router which uses single phase for the spindle, stepper motors and control box. This is all wired in and working...
I'm installing mag-locks and fire door hold-open magnets at the moment and I'm wondering if any of the cable should be fire performance cable...
Hi all,
Has anyone here had any experiance of installing a Porsche 11kw 3ph EV wall charge unit ? We've not done many EV installs to date but...
Hi there,
Just a quick question. Does a main protective bonding conductor require UV protection when run outside?
I am under the impression that...
- Question
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...
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...
Hi guys,
So, a friend of mine has a three phase 100a supply and wants to install 2 x three phase 20a fork lift chargers and a three phase car...
- Question
I always turn off main switch before removing cover or doing any work in a DB, but when should incoming supply be isolated ?
When placing a...
Hi everyone I’m looking for an abb inverter
It’s for a bandsaw
Model number is ACS150-03E-08A8
I need it yesterday if anyone has one around I...
Evening everyone,
I was taught when carrying out Zs testing to test both L-PE and L-N and record the highest result of the two tests for my Zs...
I have an Adexa dishwaser (7kg EMP.500 under counter style) that fills, heats and empties ok but has stopped working on the wash cycle. I replaced...
Morning All,
Think I'm having a brain fart but I have a 70mm2 4 core SWA with a separate 35mm2 CPC.
Earthing is TNS with main bonding...
I need a 3 phase immersion heater with a DN32/42 mm thread for a commercial pasteuriser. The only ones that I've found so far are not inexpensive...
Hi everyone,
I'm nearly on my AM2 test and really enjoy the industrial side of things so I thought I'd learn by asking.
I recently came across...
Hi all, just looking for some advice about getting into site installation work.
Currently 32 yo, 1.5 years qualified gold card in electrical...
I'd appreciate a quick sanity check, thanks in advance:
New circuit for a 3 phase cooker, in a community centre (run by a charity). Total load...
- Question
Hi everyone. I'm looking for some advice on how bespoke this transformer is?
Output KVA: 2380
Connection: Ddoy11
Duty: 30sec/200min
Sec volts...
Hi
I'm installing two new sub-mains. I need to parallel some of the supply cables.
It's the main incomer in 5 x 25mm, with 5 x outgoing 25mm...
Hi all,
I would like some advice on a scenario currently at my workplace. I am replacing a Sub main DB and replacing the wiring to sockets/lights...
Morning guys,
I would like some advice, currently at my workplace, I am replacing a DB and existing wiring in a warehouse. One of the ways feeds...
Hi,
Can anyone tell me a BS number for a merlin gerin compact C161N?
Also does anyone have max Zs available for the same C161N 63a MCCB?
Cheers.
I keep seeing these on pics of installations, mostly industrial, and just wonder what they're for? Are they fused?
Why put one in when we can go...
Hi all. Customer asking me to fix 3 phase consumer unit on a new shop . Its brand new installation . He want to use every part of shops and he...
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...
Greetings,
I'm a EE and have installed many electrical systems but am now dealing with my first large 3PH install on our property. I'm not...
Hi all,
I've been getting into electrical work these last few months, and have gone from doing rudimentary battery-switch-bulb diagrams to...
Hi guys,
A car showroom / workshop brand we do work for has asked us to modify a few things in the workshop. One of them being to implement...
Hi all, got a community center job and the want surge protection, 3ohase in phase for community center and phase for the flat upstairs, question...
Hi all.
I have a Danfoss FC51 vfd. When I go to the menu 1-20, only appears the options from 8 to 11, which corresponds to a 1.1kW to 3kW.
I have...
- Question
Assuming a large company needed a large EV charging infrastructure for its fleet to be electrified. Would it be best to just go straight for 150kW...
Hi guys
I am working in a warehouse where there is an inactive gas pipe and disconnected gas meter. The DB which has been upgraded now is on the...
Hi, L+G ZMD120A53 is displaying FO40000. I have searched the net and contacted L+G who refused to assist.
Been waiting 6 months for supplier to...
Hi, we are converting old farm buildings to commercial units, and as my father used to run a vacuum pump and compressor in his dairy I always...
wiring a 480 volt 3 phase 114 amp generator to run 2 machines. Both machine nameplate 480 v 3 phase 50 FLA. What size wire and over current...
I need to connect an infrared panel to the ceiling. The panel comes with a pre-wired 13amp plug, but it needs to connect to the supply left in the...
Hi
I recently installed a supply for my mates welder in his workshop.
2.5mm SWA from existing TP Schneider DB to 16A wall mounted socket...
Hi,
I am looking for some quiet contactors to control a pair of 3 phase 20KW fan heaters in an art gallery. Are there any favourite suppliers?
Hi there - some of you might have seen my previous post about current-measuring CT clamps. This is another question about them! Once again I'd...
I have an an electric brake on a three phase motor with the attached wiring schematic which is part of a wine press. At first I thought this was...
New Posts (Please Reply)
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UK Failing Apprentice - What to doWhat to do with a failing apprentice........ bin him but what are the legal problems that may arise.
- Latest: Mike Johnson
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Options for bathroom fan in downstairs flatHi all, Got an awkward bathroom fan installation in a downstairs flat, concrete ceilings and (some) walls. Bathroom is already fully tiled and...
- Latest: Mike Johnson
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Testing RCBO x5 timesHello everyone, Is it necessary to test RCBO x5? Some say that you can’t even test at x5 times because it can damage RCBO. Others that you can...- Latest: loz2754
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RJ45 connector typesHave run out of stock of RJ45's and looking to get a bulk pack online, it's been a while since I've had to buy any and I'm mostly seeing packs of...
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acorn 180 stairlift problem f6 and f7hello I desinstal and reinstall an acorn 180, it had only 2 weeks of use. it flash f6 at first, i use the manuel mode to move up and down, i did...- Latest: RobsRepairs
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