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  1. Rocboni

    KLEIN Toolbag for sale

    KLEIN tool bag. Never used. Comes with led light. £70??? Open to reasonable offers Post available
  2. Rocboni

    UFH8 or UFH8N system

    I recently wired a heating system with a UFH8 manifold and an unvented cylinder.... easy. Well it threw up a few problems. Initially I had the time clock live feeding the UFH16, ugh zone valve connected to the valve connection and fired the boiler with the volt free on the pcb LS and LR. Circ...
  3. Rocboni

    Sky + & TV first Fix

    Hi all, Looking for some advice on first fix for sky and freesat TV, I've quoted a WF100 shotgun and a single to both bedrooms and lounge, plan was to run all shotguns to external point for Sky to terminate into LNB and fit amp and digital aerial for the 3 freesat points. Terminated in each...
  4. Rocboni

    Transformer testing

    Hi All, So i was asked to look at at large 3 phase to 120V transformer around 85kVA - it was tripping the MCB instantly (it never used to) I insulation resistance tested the primary windings to earth - >2000ohms I continuity tested the windings and got 0.46 ohms per winding, they were all...
  5. Rocboni

    Outdoor building/stable

    Hi all, Pricing for a supply to a 25x 10M steel frame shed around 100M from a bungalow, one section is going to be partitioned to create a stable area. Is there any requirement for a 300ma S type RCD?, I wouldn’t really class it as agriculture. Only 2 double sockets well away from the stable...
  6. Rocboni

    Worldskill uk Skillelectric

    Well I've only gone and won it :)Welcome to National Electrotechnical Training Ltd | About_Net - http://www.netservices.org.uk/news/rhys-boni-wins-skillelectric-gold/
  7. Rocboni

    New supply to factory

    Just wondering what people thoughts are on obtaining a supply to a part of a local mill where I am now a maintenance engineer. The existing installation is terrible with many switch fuses that have been added over the years, the oldest part is from 1946. The total supply capacity in question is...
  8. Rocboni

    Closed loop Sensor monitoring

    Hello, How are closed loop sensors like the below and monitored integrated into a control system, isolation switches/switch amplifiers? These are typically used on explosion panels where when they blow off it snaps the cable or ceramic plate causing an open circuit. (I’m Prepared for the...
  9. Rocboni

    Fairford synergy soft start unit

    Looking at using a fairford synergy soft start unit as below to start a 45kw motor, just wondering what it means by connected in line, I’m presuming they mean star but can see how the motor would run correctly being 400/690v rated...
  10. Rocboni

    Ade optima compact bleeping

    Hi, I’ve been asked to look at a ADE optima compact plus as the zone 1 light is activating and it beeps everytime the PIR as activated I.e when someone walks Infront of it even when the system isn’t armed? You can press reset and the light goes off but as soon as it activates again it comes...
  11. Rocboni

    Safety relay Implementation

    Right, looking for some info from some of you control gurus. So I'm very interested in control sytems, panels etc have even built a few and have come across safety relays, trying to get the hang of how they are actually implemented into a control system, I've studied plenty of the safety relay...
  12. Rocboni

    AWA submain 400Amp install

    hello Just wondering at what level does circulating currents, short circuit current come in to play when installing single cables and how inportant the arrangement of cables on the ladder are, is it mainly high voltage installations or low voltage as well? We are installing a 400A submain...
  13. Rocboni

    Bargain fuses On ebay

    Just won these on eBay for £1.20 feel a bit guilty to be honest, not sure if I'm going to take them 253199553457
  14. Rocboni

    Filling out EIC tick sheet

    Query when filling out EIC for an additional circuit, When filling out an EIC for additional circuit, Is the tick sheet applicable to that circuit only or is is talking about the installation as a whole? For example where it states Cables correctly supported throughout their run obviously this...
  15. Rocboni

    NVQ level 2 is he qualified?

    hi all, We recently have had an new guy start with us and I have been sent with him a few times, he does seem to know quite a bit but does make some mistakes as a 3rd year apprentice I am wondering if he is really sutable to supervise me( the other day I sent him to do a Earth loop on the bell...
  16. Rocboni

    45kw motor and generator problem

    Hi all, Got a bit of a problem with a new generator when starting a 60hp motor. It's a 250kva generator with a 125A mounted plug, the plug is protected by a C125 A Merlin gerin c120h MCB with combined 300mA RCD, the motor starts fine but when it changes over to delta it trips the 125A mcb (I...
  17. Rocboni

    Frost protection on combi boiler

    Quick hypothetical question, Combi boiler in garage with frost stat and pipe stat on return pipe, two zone valves for upstairs and downstairs, does the frost stat have to open one of the valves or just fire the boiler? Do they have a bypass valve?
  18. Rocboni

    Interesting Electric shower wiring

    Came across a interesting method of wiring a shower, 6mm runs from mains position from a splitter with 40amp mcb and RCD when it reaches the ceiling space abouve bathroom, they have taken a 6mm to the shower switch and one to the shower and used the 6mm to the switch as a feed and return and...
  19. Rocboni

    Serrated washers on steel conduit

    Whats the opinion in serrated washers with galv steel conduit? I was always taught at college to have one in between coupler and accessory and coupler and trunking, wether being used as the cpc or a separate cpc. I was at a job today where they are installing a trunking/conduit system but are...
  20. Rocboni

    Asbestos!

    Today I witnessed (for a very short time) the cutting/removal of asbestos by a apparently specialised company! The holes for ventilation dusts were to be cut through the double skinned shed with the internal skin being "low risk" asbestos. Firsly they were wearing paper suites and masks...
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