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 Cheers. Thanks for the reply.  The buildings in the diagram are all supplied from the same place (Building A). The 2 buildings in question both have different supplies (and sizes). Although I am sure this is probably irrelevant.  GS

50mm bond within the new building also? Even though the incoming supply is only 25mm? (TP&N)? Cheers  GS

Cheers for the reply.  Could you not argue that the services enter both buildings? If we where to bond the services with 10mm where they enter the new unit then we will have an extraneous conductive part within the main unit that is not bonded back to that buildings MET?  Cheers GS

Good Evening all. Happy New Year. I hope everyone is keeping busy and all the best for 2014.   I have a question regarding bonding services that link two buildings that have different supplies.   We are currently installing the electrical system at a factory. The client has purchased another...

We have an 18v Makita angle drill, and the big 240v Makita angle drill. The 18v only has single speed, so can't really be used with small augers. It is great with flat wood bits though. Does tend to eat batteries, but then again so do most Makita 18v drills.  The 240v drill is fantastic...

I will try and contact the firm that originally installed the kit, perhaps they would know whether an SPD is part of the inverter.  Regarding the AC, that's what we plan to fit but we will use Furse kit as that is what has been spec'd.  Cheers GS

Cheers for all the replys.  Its a sunnyboy. Small system. 4kW. Iv'e been looking into Furse' technical reference documents which state that an SPD should be fitted on both the AC and DC sides of the PV system (assuming the DC is required to protect the inverter from partial lightning strikes)...

Ok, Cheers guys.  We are not MCS registered, so I will liaise with another contractor we often work alongside, who is MCS registered to carry out the work.  The premises is a commercial building, so not sure if the FIT's apply? Sorry, I have very little experience when it comes to PV, although...

Good morning all.  We have been asked to install some Surge Protection Devices on a Solar PV system.  I thought I would check what we propose to do with you guys as we do not install PV systems and have little experience in that area. The PV system is supplied from a 3 phase board (L1 phase)...

Cheers for the response. I've used the ND cameras before, and without any IR, all we had was a black screen at night! (Not much artificial light) so we replaced them with IR cams. GS

Afternoon.   We have been asked to install an additional CCTV camera at a clients property. They want to be able to view vehicles arriving at the top of their drive. They would also like to be able to view number plates in light & dark, We can mount the camera approx 15m from where the...

Word is great don't get me wrong. Its fine when I am preparing invoices that I have already quoted for as there are no materials to add as I have already priced the job. However we do a lot of work for builders that is not on price, and unless I literally itemise every bleeding screw, there’s...

Good evening all. I am looking at purchasing some sort of invoicing software. I currently type out an invoice on Word, with my logos etc, as the header & footer. However, having to compile several invoices daily means I spend less time on the tools, which I hate! Do any of you use...

Cheers lads. Will let you know how we get on and upload some pics. GS

Thanks for your replys. It's in a switchroom, so no water etc. I just dont want to end up with a huge hole in the bottom of the panel compromising IP rating of the board. The tails are 95mm, 300A 3 phase supply, cutout 2 metres away. We will need to take the cables into the board together, to...

Afternoon. I hope everyone is well and keeping busy. Quick question. What's the best method of taking meter tails into a panelboard, to maintain ip rating etc.?? Cheers GS

There u go!

Cheers mate It says "pulse output is to be provided", so I assume provide? I just need to work a figure for this for the tender, but I need to know what it means before I do!!! Cheers GS

Evening all. I hope everyone is well. Just started a tender for a job and noticed under the panelboard spec "Pulse output is to be provided plus amp meters to the incoming service". What exactly do they mean by pulse output? Sorry if this is a stupid question. GS

The boiler will have a permanent feed (to allow overun pump etc) The ext controls will be wired through the relay within the boiler (Worcester) This would be the case if we had 6 pumps (one for each zone) but we don't. Yes the boiler does have a "master flow pump" which will be wired directly...