I used to have an old TMK analogue meter that had a button that actually put
a fairly large wattage resistor across the probes so you could see what
actually happened under a minimal load, and it used to be very surprising on
even fairly short runs of wire at 240v ac.

Brian

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"Steve Walker" wrote in message
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On 09/11/2019 19:21, Lee Nowell wrote:
The meter is an old (circa 30 years) fluke meter. Good quality but old.
There is earth at the junction box - should I run some more reading with
that?

A 30-year old digital meter will probably be 20M or more, while an older,
analogue meter might be 10K.

SteveW