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canada

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  1. A

    3 phase volt drop

    (sorry this went into a few forums it should not have -my bad) Any help would be great A volt drop calculation that i could do with some help with is the 3 phase VD I fully understand the single phase vd calculations but just wanted to get a confirmation when using 3 phase. e.g Say a large...
  2. K

    My dream test bed

    :innocent: Sorry but I couldn't resist it :innocent:
  3. S

    Checking Earth on an Industrial Equipment

    Hi Guys, Well i am a newbie on here, I have an Industrial Machine and I need to renew the Earthing Rods, The machine is of 3 Big Units and I want to make sure the earthing I install is enough for the requirement. The power source is a 350KV Generated power. Any Info will be welcomed. Thanks...
  4. G

    Proportional Control Vs. On/Off Control

    Hi, I have a pizza press at work with heating elements going through the large metal platens that form the top and bottom press. The heating elements maintain the temp of the platens constant using on/off control. As a result of this the temp fluctuates quite a lot. So, if they are set for...
  5. H

    Emergency lights and bonding to water pipe

    I have two questions. Firstly I need to bond the water pipe where I work with 50mm (PME, with a neutral over 150mm). It just so happens the structural steel is bonded and would do very well as the bonding for the water pipe if I run a 50mm to it. I have loads of 35mm green and yellow, can I...
  6. P

    School labs

    Is there a regualtion that states 5mA protected isolation transformers must be used in a lab enviroment to supply socket outlets or a specific set of regs regarding installations within labs. Thanks guys in advance.
  7. cliffed

    nearly

    hav u ever had a nearly big mistake, i was making off 95mm 4c swa inn2 a main switch,everything was going splendidly when,i cut the last 1 slightly shorter than i suppose 2 .Panic...then after alot of swearing...i noticed the panel the switch was mounted on had moved slighlty of its fixing...
  8. S

    DPDT Switch

    Hi there, Does anybody know where I could get hold of a double-pole double-throw switch (also known as a four-way-switch, crossover switch and change over switch)? I would like to control a set of lights with three switches, and it is possible by using two SPDT switches at each end (like in a...
  9. V

    3 phases in one switch box

    hi all ive been asked to wire some high bay lighting in a unit from a tp+n c/u. my question was as its accross all 3 phases what do you do about the switch end? i dont like the idea of 400v in a metal switch box. ive got 4 rows of 400 hids and want them switched in rows. ta all vitoboy
  10. D

    Need some help please

    Hi, I am in the process of setting up a carpentry workshop in France, I am getting a qualified electrician to do the installation but I am sourcing the materials because I can get them cheaper in the uk.The problem is he doesnt speak english and my french aint that good yet so Im not sure what...
  11. M

    Making the move to Canada

    Hey guys, I've always found everyone very helpful on this forum so I thought I might as well ask about this here. Also, before anyone asks, I've tried to contact Romans99 for some advice, but his inbox is full so I can't get hold of him! He's always inundated with questions as well, so this...
  12. M

    struggling to find info on street lighting LUX levels

    Hi All Can anyone tell me what the lux level requirements are for street lighting. the area I am concerned with is a residential complex consisting of 5 two story residential units and a day centre building more or less in a U shaped configuration, a walkway follows the building line 3 of the...
  13. B

    upgrade of a 3p board from 100a to 200a

    I have recently upgraded a 3p isolator from a 100a to 200a with the help of scottish power. I now need to fit a sub mains board for my mcbs does anyone know what size i need my tails to be coming from the isolator into the distrubtion board which will be located next to the 200a isolator and...
  14. A

    Chint

    If anyone use's Chint products please get in touch as I have recently become a Chint distributor. I can offer some very good discounts on 3 Phase Boards, MCB's, RCBO's, Contactors, Overloads & Pushbuttons. Check out Chint Europe (UK) Ltd to see full product range. Regards Andy
  15. V

    bringing back dewalt impact driver and hammer drill from Canada!

    Hi guys have a query in regards to bringing back dewalt drills from Canada! i have been given these two 20V max impact drill drivers and hammer drill (DCK285C2) which run on 120v and 60 hz. If i purchase a little adaptor which runs 120 from 230v would be great but i feel this might slow down the...
  16. ipd1961

    GEC System 4 Panel Boards Help required

    Hi All I have been tasked by my company to find out as much information on the Panel Boards we have fitted at present. It is a GEC System 4 and is older than gods dog. If anyone has any info of any sort concerning this item that should be in the National History Museum would be grateful. We have...
  17. sythai

    See what you make of this.....

    Just going over some plans and trying to work out what they actually want for the CU (gone round it in red ) There's hardly anything going in there but it states : ???? (that plan hasn't come out too well - just trying to re-do )
  18. R

    3 phase plug.....

    ....wired as single phase, but with L3 used for neutral. I know this is poor practice, but is it actually dangerous? Whole wing of the large facility I work in is so wired "to prevent non_inducted personnel using these service plugs." I did not like, and just used my battery drill.
  19. Dic Penderyn

    Cable spec for a factory cooler!

    Howz it Lads & Ladettes! There's a huge project afoot! No cable spec yet! Would anyone have a incline to what cable size might be required for the following Cooler for a Diary Factory? · Model RTAC 250 HE · Power: 628 kW · Electrcial power unity: 253 kW · Power...
  20. N

    Dol contactor & overload selection

    Hi everyone Can you please tell me how to calculate/select the correct contactor & overload for the following:- Single phase 2.2kw induction motor fitted to a steam cleaner/pressure washer. There is currently no motor controls fitted as they have been removed by previous owner. I have also...

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