Can anyone please instruct me on using a multimeter and how to do basic testing on lighting circuits etc
Multi-Meter
- Thread starter irishsailor
- Start date
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To test to IEE regulations BS 7671 a multi meter on it own is not much use. You will need the following equipment.
1) a continuity tester (low ohms) resolution to 0.01 ohms. (most multimetrers will only go as far a 0.1 ohms).
2) an insulation resistance tester.
3) a loop impedance tester.
4) an RCD tester
5) a prospective short circuit current (PSCC) tester.
6) an approved test lamp or voltage indicator (you can use your multi meter for this one!)
7) ideally a proving unit.
Go to a website like Megger or Martindale to see the specific eqipment. You can buy separate units for each of the tests or if you have £500-1000 pound you can buy a 16th edition tester which combines all of the tests in one unit.
With regards to how to do it. You would really be better off with a good book. There are many available but I would recommend Testing Electrical Installations A practical guide for electricians: http://www.amazon.co.uk/Testing-Ele...1020402?ie=UTF8&s=books&qid=1193750033&sr=8-1
Not being funny, but the subject is too big for a simple posting. I know you are currently doing 2330 level 2. Further down the line after you've completed level 3 then do the course C+G 2391 which essentially covers this subject so you can test away to your hearts content. (Have a look on C&G website for more details).
Also remember try to think not just how to test, but why are you doing the tests.
Hope this helps
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1) a continuity tester (low ohms) resolution to 0.01 ohms. (most multimetrers will only go as far a 0.1 ohms).
2) an insulation resistance tester.
3) a loop impedance tester.
4) an RCD tester
5) a prospective short circuit current (PSCC) tester.
6) an approved test lamp or voltage indicator (you can use your multi meter for this one!)
7) ideally a proving unit.
Go to a website like Megger or Martindale to see the specific eqipment. You can buy separate units for each of the tests or if you have £500-1000 pound you can buy a 16th edition tester which combines all of the tests in one unit.
With regards to how to do it. You would really be better off with a good book. There are many available but I would recommend Testing Electrical Installations A practical guide for electricians: http://www.amazon.co.uk/Testing-Ele...1020402?ie=UTF8&s=books&qid=1193750033&sr=8-1
Not being funny, but the subject is too big for a simple posting. I know you are currently doing 2330 level 2. Further down the line after you've completed level 3 then do the course C+G 2391 which essentially covers this subject so you can test away to your hearts content. (Have a look on C&G website for more details).
Also remember try to think not just how to test, but why are you doing the tests.
Hope this helps
[/url]
For what purpose?
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To test to IEE regulations BS 7671 a multi meter on it own is not much use. You will need the following equipment.
1) a continuity tester (low ohms) resolution to 0.01 ohms. (most multimetrers will only go as far a 0.1 ohms).
2) an insulation resistance tester.
3) a loop impedance tester.
4) an RCD tester
5) a prospective short circuit current (PSCC) tester.
6) an approved test lamp or voltage indicator (you can use your multi meter for this one!)
7) ideally a proving unit.
Go to a website like Megger or Martindale to see the specific eqipment. You can buy separate units for each of the tests or if you have £500-1000 pound you can buy a 16th edition tester which combines all of the tests in one unit.
With regards to how to do it. You would really be better off with a good book. There are many available but I would recommend Testing Electrical Installations A practical guide for electricians: http://www.amazon.co.uk/Testing-Ele...1020402?ie=UTF8&s=books&qid=1193750033&sr=8-1
Not being funny, but the subject is too big for a simple posting. I know you are currently doing 2330 level 2. Further down the line after you've completed level 3 then do the course C+G 2391 which essentially covers this subject so you can test away to your hearts content. (Have a look on C&G website for more details).
Also remember try to think not just how to test, but why are you doing the tests.
Hope this helps
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One other thing you will need is a fair few quid
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