devices

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  1. P

    DISCRIMINATION BETWEEN RCDs

    Morning Guys I know that if a 100mA RCD is followed by a 30mA RCD, the 100mA needs to be S type. If a 300mA RCD is followed by a 30mA RCD (Farm installation) does the 300mA need to be S Type? Cheers Pete
  2. silver surfer

    Time curves for bs 3871 devices

    Apologies if this question has been done to death elsewhere. Where would i find the time/current curves for BS3871 MCBs? BS7671 only illustrates graphs for fuses and bs en 60898 and 61009 devices I am trying to find out how long a 45 amp bs3871 mcb will withstand about 50-55 amps for on start...
  3. B

    en 60947 devices

    Ever tried looking for maximum Zs and disconnection times for en 60947 breakers in the BRB?
    • bugsy
    • Thread
    • aus devices electricians' talk
    • Replies: 8
    • Forum: Australia
  4. B

    Recommendations for anti-theft or theft deterrant devices

    Looking for any recommendations or experience with anti-theft or theft deterrant devices. I hope that the market doesn't require these products in the future, but we have some clients that ask the question, especially small industrial sites and the farming community.
  5. M

    How can I create a grounding plug for my antistatic devices

    Hi I want to know how I can ground my ESD equipment by way of using my mains points. eg I have seen a grounding plug for sale that allows you to clip on your ESD devices. You plug it into a wall socket and it uses the earth point to discharge. The problem is they are not cheap and there must...
  6. C

    alarm cable ccc

    hi im installing one of these http://www.protectingpeople.co.uk/downloads/dpa/Meditell_2_installation_manual.pd pg 27 whats the ccc of general 6 core alarm cable? just planning cable for right side of tranformer [cable between devices] max 2amps roughly a 8 meter run i'll probably just use...
  7. L

    Surge Protective Devices - Amendment One BS 7671!

    YouTube - ‪An Introduction to Surge Protection Video‬‏ - here is a sample of a great video produced by learninglounge.com and pheonix contact. I would highly recommend the online version as they have so much more video content to offder and the price is much cheaper than buying all the dvds :)
  8. Markc

    Anti slide devices

    Is anyone else using anti slide devices for the bottom row of panels? Today for the first time we have struggled to get the rail distances and anti slides to work together.
  9. S

    RCD Tripping and Surge protection devices

    Has anyone come across surge protection devices being the source of an RCD trip at consumer unit ?
    • SIMBO
    • Thread
    • against aus cause class devices electricians' talk protect protection rcd rcd tripping surge surge protection tripping
    • Replies: 10
    • Forum: Australia
  10. G

    How many devices are safe per socket?

    Guys - I've joined a company this week as an IT manager/ PBX techie. The Company is growing quickly and are installing some new servers. I have only 4 sockets in the patch room forcing me to run 4 socket extension blocks. I'm worried about how much power I'm drawing. Typically 600-800W power...
    • gt74
    • Thread
    • aus block devices electricians' talk extension power safe socket sockets
    • Replies: 9
    • Forum: Australia
  11. E

    Lock Off Devices?

    Hi Guys how many of us use Lock Off Devices or Warning Notices? What are the best lock offs to get and where can they be purchased as i cant find them anywhere to buy?
  12. D

    Tt rcd

    Hi All hope you can define this for me TT installation 100mA RCD, is a main switch required in conjuction with this. I do not think so as a this (and all others ?) RCD conforms to BSEN 60947 so why would some think that an addition method of isolation is required ?? Dev
    • devlin maguire
    • Thread
    • aus devices electricians' talk isolation metal rcd required
    • Replies: 3
    • Forum: Australia
  13. R

    single pole devices

    Hi All Why must single pole devices be fitted in the phase conductor? I understand that polarity must be assured through out the circuit but is it a bit more in depth than this? Thanks.
    • reedsinthewater
    • Thread
    • aus devices electricians' talk pole single single pole
    • Replies: 6
    • Forum: Australia
  14. B

    Isolators mounted on panel doors

    I have been told that it is acceptable to physically mount a panel isolator of up to 63Amps on the panel door. This has been refuted by a third party citing EN60204-1 clause 11.2.1 which states: - No devices except devices for operating, indicating, measuring, and cooling shall be mounted on...
  15. K

    Door hold open devices

    Quick question guys, door hold open devices that hold the doors open but close when the fire alarm goes off, does these have to be wired in fp200 type of cable. could they be wired in 12v alarm cable?? thanks.
    • KNIPEX
    • Thread
    • aus devices door electricians' talk
    • Replies: 4
    • Forum: Australia
  16. R

    Fault Current (Prospective)

    Does this have to be measured at the consumer unit, or can it be done at a socket outlet
    • Richard3009
    • Thread
    • arial aus black current devices electricians' talk fault fault current phase without
    • Replies: 7
    • Forum: Australia
  17. D

    RCD trips on incoming power dips

    Property suffers from high number of voltage anomalies - all traced back to high voltage faults by EDF. Problem is that the RCD (80A 30ma) trips on most of these. Mega gives 2M across the circuit. RCD has been replaced as a precaution but same issue. What could the possible problem be? -...
  18. scotsparky

    Max Zs for sub mains

    Anybody know where the chart for a BSEN 60947-2 Btype mcb are in the BRB?
  19. S

    lock-out devices for switchgear

    Hi All, I've just been reading the IET wiring matters magazine and there is an article saying that mcb lock-out devices can be obtained FOC from switchgear suppliers. As I am just starting up as a spark then I haven't got any of these. Do I just need to contact Wylex and the like for them ...
    • Steve D
    • Thread
    • aus devices electricians' talk switch switchgear
    • Replies: 4
    • Forum: Australia
  20. E

    disconnection time permitted for protective devices?

    what is the disconnection time of the protective devices protecting : a) a socket outlet circuit b) a fixed water heater circuit?
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