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  1. Pat H

    SPD in a plastic consumer unit.

    Adding an EC charger and looking at options to include an SPD. The consumer unit is plastic (but in good condition) Options seem to be to add an SPD (with isolator and MCB) before the consumer unit. Or add an isolator before the EV charger with an SPD, isolator and MCB. Or can an SPD be added...
  2. Pat H

    Cable tray supports needed

    I'm looking at fitting some cable trays in a domestic loft. I need them to sit 150mm above the current ceiling joists running across those joists. I'm struggling to find and tray supports that stand up from a wooden joist. Plenty of options to hang trays but that's not practical. Any ideas...
  3. Pat H

    Critical load from PV battery

    Hi folks. I'm having a PV system installed with a 5KW Amasstore GTX5000 Battery. This comes with a critical load output. I have the spec sheet but its not clear if this output is active all the time or only engaged when the grid power goes down. I'm assuming its live all the time (unless the...
  4. Pat H

    A friend had a new consumer unit fitted

    I wasn't able to help as really busy but they were having a new kitchen installed. The fitter said they need a new ring main for the kitchen and so needed a new consumer unit. Had a look the other day. No RCD protection as it trips on the old ring main. The guy recons its the supply at fault...
  5. Pat H

    FCU for Extractor fan

    Adding an extractor fan off of a 6A lighting circuit. Installation instructions specify a local isolator (as I would anyway) so 3 pole isolator will be used. Switching L SL and N however should I have an FCU upstream of the live? It would be 6A fused as specified which seems pointless the RCBO...
  6. Pat H

    Drilling joists

    Doing a loft conversion and wondering about joist drilling. OSG states to drill in the middle of the joist 0.25 to 0.4 of joist length. I have 6" joists but the bottom 4" will be filled with 100mm celotex so If I drill at half way my cabling will be in the way of the insulation. It makes more...
  7. Pat H

    Using a cavity wall gap for cables

    Looking at a job that needs cables running up to a loft space. Had originally planned a cable route from CCU through wall into garage (part of side extension) along top of garage inside wall then up through the bedroom above into the loft space. All surface mount clipped direct. A good few...
  8. Pat H

    Safe Isolation lockouts for new Hager board?

    Anyone know of any safe Isolation lockouts that work on the new Hager boards? My current ones don't fit. The mini circuit breaker style ones don't work as the hager MCBs only have a hole one side. The clamp on ones don't fit as the shape of the lever on the MCB and main isolator is curved on...
  9. Pat H

    Hot Tub Isolator switch

    Hot tub in a garden next to a wooden summer house. I need to add an isolator. Ideally it would go on the side of the summer house as the CU is just inside but that puts it closer than 2M of hot tub (isolator is IP65) The next option is inside the summer house but I'm less keen on that as the...
  10. Pat H

    A different type of xmas ad

    In view of Brexit and the rise of Trump a great video on just how we all fund the hate press.
  11. Pat H

    Green housing

    An interesting new build idea. So is the washing machine next to the shower compliant (its in zone 2) And what happens to zones once you start moving walls around....
  12. Pat H

    Solutions for Surface mount to conduit.

    Anyone got any other solutions for getting from a surface mount socket to surface mount conduit (plastic) I often have to add a radial spur from a ring main socket. Assuming I need to retain the double gang 13A outlet I either: Add a single gang back box next to the double socket. Stick a Fuse...
  13. Pat H

    Daily email summary rather than mutiple emails per day?

    Is there any way to have emails sent in a digest way? Many of my other forums offer the option to get one daily email with all the days email alerts in summary form. My inbox is filling with electrician forum emails !
  14. Pat H

    Plastic compression glands for T&E into metal CU

    I'm sure this will have come up but what are the thoughts on cable entry into metal CUs? Obviously from the rear is simplest but if cables have to come in from below then do we need to use metal glands or are plastic ok? I assume for RFC its best for both legs of the circuit to enter together...
  15. Pat H

    ACbling for linked fire alarms

    Domestic property (mine) having loft conversion. So need linked fire alarms. One on each landing so 3 in all. I'm going for the AICO Ei2110 multi sensor alarms. Was looking at the radio link bases and then link them all up to a dedicated circuit to the CU (not going to use lighting circuits) So...
  16. Pat H

    Cable size less than protective device rating

    Noted today an interesting comment on page 43 of christopher kitchers Practical guide to inspection, testing and certification of Electrical Installations ( a great book ) Under Shower curcuits he states: For this type of circuit it is possible to have a cable which has a current rating of less...
    • Pat H
    • Thread
    • cable cable size circuit device element fixed overload protection protective rating size
    • Replies: 4
    • Forum: UK Electrical Forum
  17. Pat H

    Callout to arcing supplier fuse

    Had a callout on Saturday. Customer had lost power in the night and now had a burning smell and a crackling sound from the "black lump at the top of the supply cable" They'd called another company who quoted £72 for a 30 min visit to investigate but couldn't say when in the day they could...
  18. Pat H

    Labeling solution.

    What are people using for labeling on jobs? I've used simple thermal dymo labellers before which have been ok.
  19. Pat H

    Ebay Consumer unit (new) thoughts

    Looking to upgrade my onw CCU Looking at: http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=162069397926#ht_687wt_1169 Gives me 12 usable ways after the 2 RCD spaces taken. Its metal so current. What do people think? Not used that brand before.
    • Pat H
    • Thread
    • amendment consumer consumer unit ebay metal new rcbos thoughts unit
    • Replies: 71
    • Forum: UK Electrical Forum
  20. Pat H

    Time for a change

    Started of as an Electronics engineer doing domestic TV VCR etc (30 plus years ago). Then moved to TV and Broadcast. That involved Mains electrics in installations, edit suites and Post Production facilities way way back when things were far less complicated. The mains work I was involved with...
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