1 service conductor enters masthead- no neutral- dangers?

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Ask yourself, with me, what might be between the black outer insulation and the yellow-red inner insulation that we can see.
I am speculating that there might be concentric strands used as a combined neutral and messenger wire.
Whatever the wire is, the same thing goes into the weatherhead.

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I don't see the yellow support wire as being inside the jacket at all. Just a cut off piece of wire wound around the outside of the black cable.
All is open to interpretation, especially since I am looking at the photo on my phone.

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GoldDigger said:
Panel? I don't see a panel. Are we looking at the same picture?
My guess:
Under the black jacket is a concentric neutral.
Under the neutral is the yellow/red insulation.
Under that is the hot.
The neutral strands were cut short and taped or wound together and taped to each other. No reason to make a long loop of the uninsulated strands.
The black cable with both hot and neutral goes into the weather head and down to the inaccessible (for now) panel where hot and neutral (grounded conductor) are terminated. No speculation about what is used for grounding, if anything.
Since I have no idea what type of conductors/cable is commonly used for service drops in Mexico, this is all speculation.

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Not in the pic, but if there was some way the OP could look into the panel or meter enclosure (assuming in Mexico its in a box with a lid like in some parts of the world) that would give a better clue as to whats going on.

Just to note, if wired to the IEC standards (I know the op mentioned 127) the norm is usually one 230 volt hot and a neutral. I only say this because the wire would be thin for 127 volts.
 
mbrooke said:
Just to note, if wired to the IEC standards (I know the op mentioned 127) the norm is usually one 230 volt hot and a neutral. I only say this because the wire would be thin for 127 volts.
Click to expand...


I admit that I'm not familiar with power distribution in Mexico ( I have never been in the southern part of the country). But every thing that I can find to read about power in Mexico states that they have 110/120 V 60 HZ power that is the same as the rest of North America. I doubt if they have a 230 V hot and a neutral.

There were some old houses here in the US that only had 30 Amp 120 Volt service. I have only seen one of these in the last 20 years and they were going to demolish it but at the time it was rented with power on.
 
growler said:
I admit that I'm not familiar with power distribution in Mexico ( I have never been in the southern part of the country). But every thing that I can find to read about power in Mexico states that they have 110/120 V 60 HZ power that is the same as the rest of North America. I doubt if they have a 230 V hot and a neutral.

There were some old houses here in the US that only had 30 Amp 120 Volt service. I have only seen one of these in the last 20 years and they were going to demolish it but at the time it was rented with power on.
Click to expand...

Old 30amp 120 volt services were fun to see. As long as you dont touch the asbestos lining :eek:hmy:
 
growler said:
I admit that I'm not familiar with power distribution in Mexico ( I have never been in the southern part of the country). But every thing that I can find to read about power in Mexico states that they have 110/120 V 60 HZ power that is the same as the rest of North America. I doubt if they have a 230 V hot and a neutral. .
Click to expand...
It's just like US wiring. In the poorer areas it can be pretty scary. Although I have only seen a few towns in Mexico, most of what I saw looks like the stuff you see around the states.
 
mbrooke said:
Not in the pic, but if there was some way the OP could look into the panel or meter enclosure (assuming in Mexico its in a box with a lid like in some parts of the world) that would give a better clue as to whats going on.

Just to note, if wired to the IEC standards (I know the op mentioned 127) the norm is usually one 230 volt hot and a neutral. I only say this because the wire would be thin for 127 volts.
Click to expand...
Sorry to not be able to supply more information. I was walking around town trying to get one shot of a service drop done correctly. I walked for an hour and finally got one. I saw a lot of bad work that I understood but this one... well, it's a mystery to me. Here all service drops are to masts installed in big tall walls that line sidewalks. The meters are in wall exteriors and panels are in homes behind the walls. The panels are similar, lot of Square D, lot of fused disconnects, but in many homes, the services are smaller than in the US. Also, fewer circuits, outlets, and electrical appliances. At my house it varies from 125v to 130v. Many homes have meters missing, but unfortunately, this wasn't one of them.
 

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GoldDigger said:
I don't see the yellow support wire as being inside the jacket at all. Just a cut off piece of wire wound around the outside of the black cable.
All is open to interpretation, especially since I am looking at the photo on my phone.

Tapatalk!
Click to expand...

Well that's part of the problem, only seeing it on your phone. email it to yourself and look at it bigger.
 
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