given

  1. J

    Will a reading higher than given in 7671 for Zs values be okay if protected by RCD

    I might be COMPLETELY wrong.... but I have recently finished my level 3 in college and I'm sure I was told that if a Zs value is higher than the max reading in BS7671 it's okay if it's protected by a 30mA RCD, so it passes. I sort of remember writing 'satisfactory' on the test form next to Zs...
  2. R

    6491 singles. East Manchester.

    I am selling the following. All bought today, I've used just over 6 meters from each roll. £60 the lot collected from East Manchester or Glossop area. I can give you a VAT invoice that I was given when I bought it for £90 inc. Prysmian 6491X PVC Singles, all 98.3 meters: 1.5mm Black 1.5mm...
  3. M

    CCTV SYSTEM WIRING, 2nd hand system client has been given

    Hi There My client has had a load of cctv cameras taken out of the office which he owns and and was wondering whether i could fit some around his house. They are a vista vvrd2v6cm-540 with all the psus, dvr, screen, etc. they look like they are just plug and play. I have attached some photos...
  4. 8

    Had an electrician around to do an EICR but was given a quote for work instead.

    I've recently had an electrician around to do an EICR on my HMO property. The property consists of four flats (each flat on their own floor but not accessed via one door hence a license able HMO even though they each have separate metering for utilities). The property was completely...
  5. ferg

    given the date..

    Given that it's remembrance day.... I think this is well worth a listen. 57 minutes but worth it. BBC Radio 2 - Victor
  6. 1

    Finally given up hope!!!

    I've been keeping my fingers crossed all year but I've finally had to accept.... We're NOT getting a Summer this year :( The temperature has dropped, the dark nights are closing in faster and faster and it is currently lashing with rain as I type. It wouldn't be so bad if I had been away on...
  7. D Skelton

    Yet another spark robbing customers!

    Just got back from a customer who has asked me to quote for rectifying some issues brought to light during a recent inspection. The customer came to me because the previous spark had let him down and failed to turn up when supposed to on four different occasions. Turns out this NIC 'approved'...
  8. M

    High ring test results at socket outlets

    Hi, I was wondering if you guys can help with some errant test results. I'm testing a ring and i get L-L = 0.41 N-N = 0.40 E-E = 0.63 Great Figure 8 L-E = 1.0 ohms. Still good Figure 8 at each socket varies from 0.8 ohms to 1.1 ohms (I was expecting much lower)> Oddly Zs = 0.23 (which is...
  9. J

    AM2 - Opinions needed

    Problem solved :D
  10. B

    help for a newbie given a lack of info

    Hi all. Any help with this would be great. have been asked to wire up a garden office for the people who sell them. it is at, and supplied from, the garden centre. was told it was a board 50 meters from the office base so i sent 16mm2 cable for a 63A supply. have since been sent these pics...
  11. A

    Given Up !

    I have been running my own electrical contracting business for 5 years i finished my apprenticeship at 21 and went at it alone. Over the years i employed 2 electricians and took on some very good jobs. I couldnt have wished for more. Then over the last year work started to disappear or not worth...
  12. M

    RF Thermostat communicating with boiler.

    A friend has had their HW system replaced by a Megaflo 250 litre Indirect High Efficiency Unvented Water Heater. In the process a perfectly good Potterton boiler was replaced by a Vaillant EchTech Plus 438. There are plumbing issues I need to raise on the Plumbing Forum, but concerning...
  13. B

    Seeking qualified spark Leicester area to guide me!

    Hi, i am seeking some help from a generous spark in the Leicester area ( how many have stopped reading now I wonder)! i have almost completed the domestic installer scheme and have been given a gift of a job towards my part p registration, but need some guidance and help with it. The job is for...
  14. E

    Given up on exams due to 12/12. Can some sign PV job off?

    PV installation done in preparation for MCS certification exam. However, FITs announcement make it pointless to continue. Therefore, request someone to sign job off. Installation installed to high standard sharp panels 2.45 KW. house got already NIC electrical certificate. However, require...
  15. K

    Max Zs on RCBO

    Just tested property with a HUGE ring circuit and got 1.4 ohms on a type C RCBO. Given the max is .57 there is no chance of getting this close. Has anyone come across this before and what would be the advice given that it is protected by an RCBO and if you consider a TT system it is better than...
  16. C

    Voltage drop calcs

    Hi Could someone kindly put me in the right direction for voltage drop in cables. I have the formula from OSG (mV/A/m) x lbxL divide 1000 but cant get my brain to kick in and piece everything together. There is very little in 7671 unless im looking in the wrong part. Do I require tables for the...
  17. B

    Discounts for cash

    The last few quotes I have given the customer is insistant on a discount for cash. I refuse to as the price I give is what it actually costs and as I do everything above board and by the book and as such a cheque doesnt really effect me. Thing is I think it is costing me jobs. What is the rest...
  18. C

    Given the choice?

    Now i do want to be an electrician dispite all the gloom and me sending out 40 CVs and ringing people with still no luck. Searching for apprenticeships is not going well. The question I have would you continue or would you take up one of these british gas service and repair engineers...
  19. D

    one earth sleeving doing both cpc's behind a socket.

    just wondered everyone's view on this situation cheers..
  20. Johnuk

    hello all i got a question on a testing question

    am looking at the question and am a bet lost now on answering it..... The maximum permissible values of earth fault loop impedance for three circuits are 1.44 Ω, 0.92 Ω and 7.67 Ω. If the measured values for these circuits are 1.25 Ω, 0.68 Ω and 6.22 Ω, determine if the measured values are...

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