Hi all,
Well, this one is interesting and I have absolutely no idea what could be causing this.
Just added a PIR to a lighting circuit, very simple, disconnect the lamp and move the feed cables to feed a PIR and then onto the lamp itself. Nice straightforward.
Doing my testing for the minor...
Just been sorting out a right mess during a house renovation and tests on newly installed ring final are r1 0.35
rn 0.35 & r2 was expecting around 0.58 but had consistently 0.00 Ohms.
MFT was zeroed again from scratch and was still giving a zero resistance reading
Almost all cable is new and...
Did an EICR in a domestic property, earthing arrangement was a TN-S with a Ze of 0.51 ohms.
There are 2 ring final circuits protected by 32amp 60898 type B mcbs. Both circuits have additional protection from a 30mA RCD.
My Zs readings for the circuits are 1.63 ohms and 1.89 ohms.
My question...
just done a EICR. good installation, approx. 10 years old. 16th ed.split board, lighting circuits non-RCD, on TT earthing. my query is this:
the Zs readings are high, due to the high Ze, insofar as , e.g. lighting circuits on 6A MCB each have a Zs higher than the max. permissible . should I...
Hi everyone. I'm looking for advise on how to test IR on commercial lighting. There's so many lights on 1 circuit , do I have to take out all the lamps in all the lights to perform the test or can I simply test between LN -E ?
Even though I have spent lots of time testing domestic installs and...
Hi
I have just changed both an off-peak CU and a normal CU. I have tested both. Can i put them both on the same cert or do they need to be on two different EIC's ??
I carried out an eicr and no circuits have RCD protection. There are 3 dbs all have federal elec type 3 mcbs in. Would you recommend changing each db and rcd only the sockets or rcbo everything as its all T&E less than 50mm. One db is lighting and power the other is convector heaters and hand...
rwood1981
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circuits
other
protection
rcd
readings
replacing
suggest
Hi all,
I have come across an issue that i know others would have.....
I done an Insulation resistance test on a lighting circuit with no selv or pelv just regular pendants circuit. Now the customer informed me they had a leak from a bathroom a few months ago and when i tested this particular...
Hey,
An EICR was under taken again on property.
Insulation Resistance results on at 500V. All results in Mega Ohms
LIGHTING L-N 34.80, L-E 2.05, N-E 33
LIGHTING L-N 2.47, L-E 2.97, N-E 2.81
UP POWER L-N 78, L-E 72, E-L 69
DOWN SOCKETS L-N 16.30, L-E 15.41 N-E...
hi all, I posted about this recently and didn't manage to get back online till now.
I've got a Fluke 1653b multi function meter. In the last few weeks it has stopped recording Ze and Zdb readings ( readings on L-E setting) are 0.00 and on L-N reading are0.00 and PFC is 10kA ( this only happens...
Hi Guys
Job - semi detached with a TT earthing arrangement.
I used the Z loop function on my MFT to check the earth at the DB. Reading 164 ohms - ok.
Same reading with earth reconnected.
However if I do the same test with the Zs RCD function, I get 204 ohms. Why? Do I have a MFT fault?
I need...
Hi all, yesterday i went to a property to do an EICR in preparation for a DB change next weekend. The existing DB has six circuits, cooker, 2 x rings and 3 x lighting circuits. Bonding to gas and water is in place and adequately sized so providing everything tested out ok a relatively straight...
Was out doing some defect repairs on a system with a few high earth loop readings. I had previously been on site and tested the circuits with the high readings. For one of the circuits I had a reading of 1.28 ohms for a C50 t/p mcb it was rather high. So the idea was to remove the mcb and...
I am thinking about buying the Megger MFT1730, I have read bad reviews (before 2014) on the no trip test and z readings being off. Does anyone know what the 1730 is like now in 2016? is it worth buying?
has there been any software upgrades to fix the issues? any info is appreciated
Hello All wondering if anyone could shed some light on a problem i have with my IR readings.
I recently rewired a house.. took care pulling cables in etc . finished 1st fix, checked cables by looping ring main in connector blocks and doing continuity and IR test . continuity was ok, IR read...
Justintime
Thread
conductors
connecting
fault
final
insulation
insulation resistance
readings
resistance
ring
socket
sockets
testing
I've recently purchased 4 Helios 275 watt solar panels. My plan is to run a 48 volt system. 2 panels will be in series and both sets of 2 panels will lead into a combiner box down to my charge controller. Their specs read a VOC of 38 volts. I made the BIG mistake by not initially checking...
I work for a large telecoms company in the UK, and we have a/c power that is supplied by local dno to our street cabinets. part of the stipulation is the earth rod reading should be below 150 ohms. these rods are tested and fitted by contractors, then their electrician does the electrical...
I thought having one of those socket adaptors that allows you to push your testing leads directly in.
What's the general consensus? Do they conflict with testing resulting
think the one Iv looked at is made by kewtech
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