What is this glass bowl for?

**Anders** · 14th January 2022, 09:31 PM

It has resemblance to the German glass mine but obvious isn't.

Is it ordnance related or is it something mundane as an isolation part for electricity?
I do not have the measurement, sorry.

Anyone?What is it.jpg

**pzgr40** · 14th January 2022, 10:58 PM

Glass insulator for hanging high voltage cables from in electricity masts.
It returns in ammo forums about every five years with people claiming it's a glass mine, but it's not.
Regards, DJH

**TimG** · 15th January 2022, 12:18 AM

I believe it is a 'Strain Insulator' for the guy ropes that support the masts as opposed to an HV line carrying insulator. - https://en.wikipedia.org/wiki/Strain_insulator

TimG

**Darkman** · 15th January 2022, 02:02 AM

It doesn’t really have any of the design requirements for an electrical insulator. It’s just a glass bowl with a lid.

**doctor** · 15th January 2022, 08:41 AM

It reminds me of a sterilized canning jar.

**AKON_** · 15th January 2022, 08:20 PM

I have seen similar glass objects filled with explosives and used in industrial mining to break a jammed drill bit in a borehole and to "perforate"
The charges were with a cumulative insert and without an insert on the body had a groove for detonation cord.
There will definitely be a sample of such material somewhere on the net.
Akon.

**pzgr40** · 15th January 2022, 11:00 PM

It looks like this.
https://www.nia.org/general/g_strain.htm

**Dronic69** · 16th January 2022, 04:09 AM

There is no functional /design requirement to have a high voltage glass insulator with a separate removal top/lid.

**Chris** · 16th January 2022, 08:31 AM

A lot of them where found in A place called Hoog Soeren in the Netherlands.
The Germans had a big ammunition stores there and it was transported from there to a few different countries in Europa.
It has the same colour as an insulator. I went to the Dutch electrical museum with it and they tolded me the have never seen an insulator with a lit.
This was about 20 years ago.

Chris

**AKON_** · 16th January 2022, 10:01 PM

Originally Posted by Chris

A lot of them where found in A place called Hoog Soeren in the Netherlands.
The Germans had a big ammunition stores there and it was transported from there to a few different countries in Europa.
It has the same colour as an insulator. I went to the Dutch electrical museum with it and they tolded me the have never seen an insulator with a lit.
This was about 20 years ago.

Chris

Hi Chris
Also about 20 years ago I met such a charge in two slightly different designs. There was explosive and a cumulative liner in each inside. According to the "Detex" kit (kits for determining the type of explosives with swabs and dripping reagents), it was a mixture of Pentrit. The cumulative insert was copper. The body of the charge was two-piece glued with glue that could not be disassembled without damaging the body of the charge.
I obtained a sample from the field of geological survey by drilling.
Akon