2006-11-13 04:49:42 · 11 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
All electrical work must be carried out by a qualified electrician in Europe(that's Britain as well) or checked out by an electrician to ensure that it is safe and meets European safety standards.This law was passed through the European parliament because of an alarming rise in deaths caused by uncertified electrics.
So basically get an electrician.
2006-11-13 05:14:16 · answer #1 · answered by Anonymous · 0⤊ 0⤋
To commission an installation means to make sure everything operates like it is supposed to - both under normal conditions, and in that it "fails safe" like it's supposed to.
Regardless fo the type of installation, there is a high probability that several trades (mechanical, plumbing, carpentry, rigging, electrical, etc) are necessary to make the whole thing come together.
The pre-commissioning process makes sure bits and pieces work as individual units (this could include in-factory tests of equipment before it's even shipped to site!). Post-commissioning covers the period after actual start-up (typically a period something less than the warranty time frame). Actual "commissioning" occurs as all the pieces come together to create larger sub-assemblies ... right up until the entire project is ready to go.
At each stage (pre-, post-, and actual commissioning), faults are discovered and rectified. If the coordinator is on the ball, sometimes things can move ahead while a piece is being fixed, but this is not always the case.
In every instance, it is best to have the "experts" do the fixing, if at all possible. This passes responsibility onto them, and (if you're paying attention) teaches site personnel something about how to do it when the experts aren't available.
2006-11-13 18:04:10 · answer #2 · answered by CanTexan 6 · 0⤊ 0⤋
Many installations, not just electrical, are complex in the building with several craftspeople being involved, using different skills. Once the task is completed it is "commissioned", that is, set up and put to work, to see if it runs properly. Any faults should automatically be dealt with as part of the installation package (e.g. recently a plumber and stove fitter installed a stove and central heating for me, and when it was commissioned one of the pipe joints burst, so the plumber returned immediately to correct the problem).
2006-11-13 12:58:13 · answer #3 · answered by anne g 1 · 0⤊ 0⤋
Commissioning means running the equipment for the first time. You may well need to do some checks before starting it (pre-commissoning checks), and you may need to do some work after running it for the first time, if it does not give you the required result (Part of the commissioning process). If it has not run for a long time, you may need to "re-commission" it. Some additional checks are often required to determine any deterioration that may have occurred during the time it is stood idle.
2006-11-13 12:59:52 · answer #4 · answered by Trevor P 2 · 0⤊ 0⤋
Most people would say "commissioning" when they mean to say "testing", commissioning is when all systems/circuits are put into operation, and small perameters are checked/changed. ie. Limit switches, tilt switches, antenna angles (depends on type of commissioning)
All electrical testing to BS7671 (Electrical Regs) should have been carried out before the system is even considered to be commissioned!
2006-11-15 15:58:17 · answer #5 · answered by marslarky 2 · 0⤊ 0⤋
The electrical installation need to be tested correctly to ensure that it is safe for use.
The Inspection and Testing is covered by the IEE regulations (BS7671) and guidance note 3.
The testing MUST be done by a competant person and to sign the certificate is a legal standing obligation which means that the signer is liable if anything is wrong.
The course to be able to sign the certificate is C&G 2391 and you must have previously been qualified as an electrician.
2006-11-14 16:16:39 · answer #6 · answered by Andy S 2 · 0⤊ 0⤋
Commissioning is just a technical term for bringing it in to service IE turning it on
2006-11-13 12:59:44 · answer #7 · answered by roybester2000 2 · 0⤊ 0⤋
It means to try the installation for the first time, to test it and check that all is in order and that it meets the specifications required.
2006-11-13 13:00:54 · answer #8 · answered by Anonymous · 0⤊ 0⤋
It means checking out the installation before the certificate of fittness can be issued !
2006-11-13 12:53:31 · answer #9 · answered by Anonymous · 0⤊ 0⤋
Its just making sure that everything works correctly and is safe to use, that it passes all its tests and is able to do the required job
2006-11-13 12:54:11 · answer #10 · answered by Anonymous · 0⤊ 0⤋