I am very pleased that you say the practice is dying out; I have had a "bee in my bonnet" for years and when we were re-writing 11202 to better match SSI (or similar) data, then I did press for my summation sheets.
It gets absolutely ridiculous to list all the supplementary detectors every time- it just clutters everything, you can't "see wood for trees" and basically forces the tester to put meaningless ticks on the CT (as typically is summated in IPT and then the common identity used throughout); this means that on the rare occasion where there IS a true need to test that separately included in a function it often then gets overlooked. I'll celebrate this as one little victory in the war of PJW against the world then!
As far as IRSE exam is concerned then certainly reasonable approach; just make sure that n your initial notes sheet for the set of CTs that you state something along the lines of:
"Point detection is assumed to include all ends (functional and supplementary detectors) and the down proving of motor contactors"
It gets absolutely ridiculous to list all the supplementary detectors every time- it just clutters everything, you can't "see wood for trees" and basically forces the tester to put meaningless ticks on the CT (as typically is summated in IPT and then the common identity used throughout); this means that on the rare occasion where there IS a true need to test that separately included in a function it often then gets overlooked. I'll celebrate this as one little victory in the war of PJW against the world then!
As far as IRSE exam is concerned then certainly reasonable approach; just make sure that n your initial notes sheet for the set of CTs that you state something along the lines of:
"Point detection is assumed to include all ends (functional and supplementary detectors) and the down proving of motor contactors"
(10-07-2013, 04:44 PM)dorothy.pipet Wrote: you say that "real" CTs would list the separate ends when considering their detection.
Actually this seems to me to be dying out, presumably since a Points Summation sheet is now common.
Is it a reasonable short-cut in the exam, or would I be expected to write all the point ends in?
PJW