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surge protection

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  1. H

    surge protection device for fire alarm.

    Will be installing a fire alarm system shortly.The site is rural tncs overhead supply from nearby transformer. After reading the osg and the green book,it appears,I need to fit a device at the intake position and another at the fire alarm panel position.Any advice of on the install would be...
  2. A

    electrical surge protection

    will a RCD provide surge protection?
  3. D

    Surge Protection Devices

    Hi guys. Who knows where i can get a simple explanation of these devices and how to use them. Yes i have looked at the big green book [ sec 443 ] and i am struggling. Reg 443.2.1 says that if no overhead lines supply an installation then no additional protection [S.P.D.] is needed as long as...
  4. Jimmy Boy

    Surge Protection devices

    Hi lads tried a quick search nothing came up, hope you can help, the IT dept has asked me if it is feasible to fit an SPD in the tails before the CU to protect the whole building against V spikes, anyone have experience of knowledge of these ? Thanks Lads J
  5. prospark

    surge protection or not

    1/.please can anyone clarify whether it is now mandatory to install surge protection devices in domestic installations for new installations and or rewires. 2/.Also is it correct that if a lightening protection system is in place you need both type 1 and type 2 surge protection ?
  6. D

    Surge protection

    I would like to know do you have to fit anti surge protection on solar pv on the AC and DC side to commerical installations
  7. D

    Type 1 Surge Protection - Second opinion required

    Hello chaps, With the advent of amendment 1 and Surge Protection playing a big part now I need a second opinion on a job I'm quoting for at the moment. I'll admit my experience with these devices is zero apart from the usual Type 3's that are common place now in homes. I am rewiring a church...
  8. D

    Surge Protection for Church

    Hi All, Can anyone suggest a wholeseller that sells Type 1 SPD's? I have tried all my usual places but cannot find anything other than the usual plug in type. I am quoting for a rewire of a Church, which obviously has a lightning conductor in the spire so it definately needs an SPD, but I...
  9. W

    Surge protection?

    Hi Apart from the usual protection devices mcb's, rcd's, string fuses, etc are any of you fitting spd's to the a/c and d/c circuits, especially on large installs? Cheers
  10. W

    2391 questions regarding surge protection devices

    Hello, I would be grateful if anyone could check my answers for those two questions and see if it's correct or not? State the a) tests for insulation resistance to be undertaken on a 230V circuit containing surge protection devices which cannot be disconnected Test between L-E, L-N and L-N b)...
  11. M

    Surge protection

    Me: Hi, can I have price for a 12 way board with surge protection please. Edmunsons: Errrm, hang on I will just check....... No we dont have one. Me: Okay, what about a stand alone one I can use up front? Edmunsons: We dont have any, never been asked for them. Me: Really? Okay I will...
  12. 4

    domestic surge protection

    done a job lately for nedl, 200 houses in gateshead had a 500v power surge cos some thieving scrote robbed some copper from a sub that feeds the houses. people lost tv, computers, phone chargers, boilers etc anything with a circuit board. As we were testing the houses prior to the power going...
  13. E

    Solar PV Surge Protection

    Hello This is my first post, I am hoping someone can help. I am aware that we need surge protectors/string controllers for large solar pv systems, however I have been informed that for any install over 3.78kWp we need them. Does this sound correct? I know there is quite a lot of confusion...
  14. Rockingit

    Surge Protection

    OK, so ammendment 1...surge protection.... whatever the thoughts are, it's here, unlikely to go soon, so let's just all be big boys and get on with it. Sooo.....that being said; I understand what it does, what it's meant for, have read the regs..... what does it actually look like in practice...
  15. sibbits

    Surge protection on portable chiller

    i have been asked to install some kind of surge protection on a portable chiller it hase recently been subjected to some mains failures and is blowing internal fuses is three phase 32a an is about 11 kw im a bit stuck help:banghead:
  16. I

    Surge Protection

    Hey all, I came accross a video by tony cable and co breifly explaining surge protection protection and the requirements with the new regs amendment. It detailed the main cause of surges as being lightning strikes and Switching Electromagnetic Pulses (SEMPs) - man made; and how they can damage...
  17. L

    testing an extension lead with surge protection

    Just been doing some testing today including 6 brand new extension leads, first two tested ok 3rd one failed with low insulation resistance of around 0.250m ohms. It was then i noticed that this one had surge protection. Can anyone please explain why this would cause these results and how to get...
  18. P

    dc surge protection

    What are peoples experience on adding the additional class II surge protection to transformerless inverters? Particuarly the sunny tripower range? Are people finding that this is becoming a regular requirement for their installs? I have seen a guideline regarding surge protection being...
  19. S

    Surge Protection Devices- Amendment 1 Section 534

    If anyone needs to know anything about Surge Protection Devices and the Amendment 1 addition of Section 534 there is a review of a training video on my blog. Before I did the review I knew very little about SPDs apart from they were used incase of lightning. They seem to be amazing little...
  20. Z

    Surge Protection

    Anyone experienced in Surge Protection systems? Have been speaking to Furse & got good techie detail so quite happy to proceed with the installation but would appreciate thoughts on:- its to cover 2 x 230v phases, same phase, 25mm tails, with 1 x 25mm neutral. been offered two choices - 2 x...

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