measured
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Measured and calculated Zs
Can anyone tell me how I could have from my dead test results for a lighting circuit obtained a value of R1+R2 which is greater than my live test Measured earth fault loop impedance for the same circuit. According to the equation Zs= Ze +( R1+R2) that should be impossible. Any help...- Dave1982
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- electricians' talk measured
- Replies: 16
- Forum: Periodic Inspection Reporting & Certification
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Reliability of measured Ze for Zs calculations
Afternoon all. Re-doing my calculations for a hot tub supply after client upgraded the specs. Details are: Hot tub rated at 16A. Supplier advises to use Type C breaker to handle inrush when pump starts. 26m from CU to Hot tub via rotary isolator switch. I was proposing to use a 20A Type C...- Smugley
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- calculations electricians' talk measured
- Replies: 9
- Forum: Electrical Wiring, Theories and Regulations
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Zs - Calculated and Measured Differences
Not too sure what to read into this!! New installl in my garage and doing initial testing Socket Circuit ( radial ) R1 + R2 = 0.03 ohms using link method in CU R1 + R2 = 0.03 ohms measured Line and CPC individually ( done this just to double check ) R1 + R2 = 0.07 ohms - of SWA from CU in...- chiplard
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- electricians' talk measured
- Replies: 3
- Forum: Periodic Inspection Reporting & Certification
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Testing limitations
I cant do Ze because I can not turn off the power,it has to stay running 24/7, what do I do???- vbyrne
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- bonding electricians' talk limitations measure measured origin reading testing
- Replies: 15
- Forum: Periodic Inspection Reporting & Certification
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Old problem with circuit length calcs
Sorry to bring up an old post but im confused. I have carried out tests on a kitchen ring final wired in 2.5mm/1.5mm T&E, results as follows: r1=0.36 rn=0.34 r2=0.59 I then joined leg 1 of line conductor to leg 2 of cpc and leg 2 of line conductor to leg 1 of cpc and measured the R1+R2 at...- sivoodoo
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- cable calcs circuit electricians' talk length measured numbers old problem readings
- Replies: 4
- Forum: Periodic Inspection Reporting & Certification
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Measured 24v at Pendant ??
A friend of a friend called me up last thing today, he'd brought new switches for his bedrooms and attempted to connect them up him self !!!.. He made me laugh when he rang, he was worrying like it was the end of the world. Ha ha.. He didnt know what he was buying as he'd brought intermediates...- TPES
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- 24v aus electricians' talk measured pendant
- Replies: 1
- Forum: Australia
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Measured Loop impedance
On another issue how do test the loop impedance at a fixed appliance or a light, to fulfill the measured loop impedance column requirement on the schedule of tests. will the calc R1 + R2 suffice?
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