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I can answer question 3 for you lol Check your onsite guide (appendix E) The way it works is each cable size has a factor, solid and stranded cables have different factors so make sure you choose the right one. Each conduit size has a maximum capacity factor and as long as you don't exceed...

I think your pointing me towards if one boat develops an earth fault which trips the main rcd then power is lost to the whole board. Where as if each circuit is individually RCD protected then only that circuit will lose power.

They won't be connecting any of the yard equipment to it as the welders are in a different location (closer to the boats) as is a compressor and 110v supplies for temp lighting etc. I'm currently looking into mobile or transportable units lol However while I'm on the subject, what's the...

I have selected a 25mm 4 core swa which at 100A gives a volt drop of about 1.9% and the volt drop to the sockets will be next to nothing, they are a meter at most away from the board, once it's done I'll take a photo haha it's Friday's job, and yes I'm going to assume since these boats have 63A...

100A BS88s I believe, and I can't recal the supply impedance, I've got it written down at work

Only one 63A 5 pin lol and one 63A 230v for fishery protection boats that come up for surveys. They are drawing anywhere between 10-40A but only one 63A boat at a time due to the size of the things They have on them washing machines, cookers, TVs, sat broadband, gaming consoles, fridges...

No its a boatyard for fishing boats and work boats, and they can't run their generators as they are out the water on a slipping carriage, so no water to cool the gen set.

2 boats at a time and by varied means I meant some have 230v inlets som have 3ph 4 pin etc. So a selection of different outlets is needed And as for loading it's very tricky, for example, we have a wind farm boat that comes up, uses the 63A 5 pin but only draws maybe 14-15 amps per phase...

Hi guys, needing a wee bit of help with this. I'm installing a new 3ph board for shore power supplies to the boats that come up the slipway, as we get a varied means of supply it's going to contain the following on each of its own circuit 230v Sockets 1 x 63A 1 x 32A 2 x 16A 400v sockets...

Parkas.....donkey jackets........whit?! Lol

Hi everyone, So after reading an argument on here and learning what one of the unnamed members does, it got me to thinking... What kind of job do the great people of this forum have? I am an Electrician who works for a boatyard refitting RNLI Severn class lifeboats, I also do the yard...

Sadly Essex1 I don't have anyone to shadow me, my supposed tradesman is as much use as a chocolate teapot so I'm kinda tackling this on my own, testing the waters to see how much I can actually do on my own

There is some great advice here, this is what I like about this forum, for someone like myself who is not long out of college, I can gain good knowledge from more experienced fellows like yourselves, thanks for all your inputs so far :)

Hi guys, following on rom my previous post I have a few more questions about this type of job, if you wouldn't mind sharing your knowledge and expertise. 1. Estimated age of installation: is there anywhere I can get a rough guideline on how old installations are by just looking, no paperwork...

I've worded this wrong then haha, as it has no rcd protection, would this need to be fitted externally?

I have no idea lol, I'm positive I was told that once, and yes I know, don't believe everything your told haha, my main reason for asking this is would the sockets not need rcd protection and he is thinking of fitting an electric shower, which would also need an RCD?

Hi everyone, I've been asked to do an condition report on a flat before it gets rented out, this will be the first time I've done one so be easy with me lol, went and seen the place tonig and at first glance I noticed they had a rewireable fuse board, am I right in saying that as this is a...

On the topic of SY cable, I was once informed that SY cable does not conform to a BS standard only an EN standard so is that maybe why current ratings are not available in 7671? It is also to my understanding that the steel braid in SY cable offers very little mechanical protection and only...

Think I may have sourced the problem, tried to open the connection box on the back of the fitting.....aluminium box/steel screws not a great combo lol screws seized in solid, drilled them out, opened the box and found corroded connections on the igniter and the choc block connector. All covered...

New lamps were fitted as I assumed (I know never assume) that it was just failed lamps lol