BS3871 Type 2 M6

[Nicktric]

Can I just check, do I multiply the OSG p103 BS3871 M6 Type2 6a by 1.24 to enter on an EIC?

 

[IQ Electrical]

Can I just check, do I multiply the OSG p103 BS3871 M6 Type2 6a by 1.24 to enter on an EIC?

I assume you mean to enter in the 'Max Zs' column?

1.25 X will get you slightly closer.

 

[i=p/u]

if its only 80% wouldnt it be by 1.20????

 

[IQ Electrical]

if its only 80% wouldnt it be by 1.20????

Bs EN 60898 C 10 max Zs = 2.30

80% value = 1.84

1.84 X 1.25 = 2.30

 

[i=p/u]

you are a genuis, noted for future refrence

 

[Nicktric]

I assume you mean to enter in the 'Max Zs' column?

1.25 X will get you slightly closer.

Thanks that what I expected then noticed on page 100 OSG it refers to correction factor 1.24.. curious or is this something else all together!?

Also I was testing today and did a Zs on lighting at the max r1 + r2 and did a couple of random Zs on other points, I got a higher Zs on a point with a lower r1 r2 reading than the point with max r1 r2 if that makes sense?! Only marginally but is there a logical reason for this or have I just missed something?

 

[IQ Electrical]

Your measured Zs will be subject to parallel earth paths which will alter the values, the highest value should be recorded.

 

[brucelee]

Bs EN 60898 C 10 max Zs = 2.30

80% value = 1.84

1.84 X 1.25 = 2.30

Nice one Iq

that never came up on the 2391 lol

i have just tried it and as usual your spot on

 

[i=p/u]

he d man