Link Extractor tool?

[Matt]

Hello everyone,

I could not find any info on the forum so I am putting ths querry out as a new post.

I came across this tool and I was wondering if anyone can tell me what it is used for?

Cheers

 

[telectrix]

what does it say on it?

 

[Pete999]

Hello everyone,

I could not find any info on the forum so I am putting ths querry out as a new post.

I came across this tool and I was wondering if anyone can tell me what it is used for?

Cheers

Insulated nut runner?

 

[Lister1987]

IT is used (afaik) to gain access to link boxes (read; underground termination boxes/terminals)

 

[Pete999]

IT is used (afaik) to gain access to link boxes (read; underground termination boxes/terminals)

IT = Insulated Tools used them a lot when,carrying out LV AP duties.

 

[Julie.]

In a lot of cities the LV distribution is configured like a ring main (as is MV dist btw) but usually has open points, if there is a fault, (lv or in the secondary sub) you open at another point in the ring, then close the N.O. point - at LV it's done with links whilst live - these are splattered around the pavements - most people don't even know they are there

In some cases the links are secured already with insulated Tee screws/bolts - no need for a tool - it's already insulated - that's what you have.

 

[Pete999]

In a lot of cities the LV distribution is configured like a ring main (as is MV dist btw) but usually has open points, if there is a fault, (lv or in the secondary sub) you open at another point in the ring, then close the N.O. point - at LV it's done with links whilst live - these are splattered around the pavements - most people don't even know they are there

In some cases the links are secured already with insulated Tee screws/bolts - no need for a tool - it's already insulated - that's what you have.

What are the ranges of MV thought MV was old hat. LV Ring Mains, usually fed from the HV/LV Switch fuse ( not to be confused with the RFC found in many installations,)
These ring mains are often fed from LV Feeder Pillars and are switched and have open points at Feeder Pillars, you see Feeder Pillars dotted around housing and industrial installation, and sometimes ay HV sub stations.

 

[Lister1987]

IT = Insulated Tools used them a lot when,carrying out LV AP duties.

Didn't mean to capitalise, was just meant 'It' ?

 

[Julie.]

What are the ranges of MV thought MV was old hat. LV Ring Mains, usually fed from the HV/LV Switch fuse ( not to be confused with the RFC found in many installations,)
These ring mains are often fed from LV Feeder Pillars and are switched and have open points at Feeder Pillars, you see Feeder Pillars dotted around housing and industrial installation, and sometimes ay HV sub stations.

No the overall definitions are still around the same LV = up to 1kV, MV 1-35kV, HV 35-230kV and EHV beyond that, IEC and ANSI tend to agree now, it is only the wiring regs that keep it simple by the simple idea that anything above 1kV is high voltage!

Pillars and link boxes are basically the same, there is a move toward pillars on new estates, but yeah the rings are left open at a N.O. point and just reconfigured when there's a fault or maintenance - with pillars they tend to be blades rather than links, you use a tool to loosen the blade screws, then swing it out, but most often the screws are uninsulated and you use a tool, rather than with link boxes where sometimes the "tool" is actually the screw itself with the insulating tee part.

Of course you get links in pillars and blades in link boxes, basically whatever the salesman manages to get the DNO/utility to buy!

 

[Pete999]

Didn't mean to capitalise, was just meant 'It' ?

If you go into many of the outlets that sell PPE they will normally stock ITL insulated tools at least ,y local safety wear shop does, expensive but if you are involved in that side of our industry, well worth a look. average price of a medium sized driver £15:00, worth every penny especiallly if you are a TOOL TART like me. just saying. (BACA SAFETY WEAR)

 

[Matt]

Fantastic bit of info gents. Thank you very much for all of your replys.

 

[Micktw68]

The ones we used to use for linking and fusing on open vertical LV boards in substations has a female threaded socket on the end of a 2’ paxoline stick. The technique was to insert the lower blade of the link or fuse indo the load side of the carrier and quickly “knife” it into the supply side . (Usually with your face turned away) ?

 

[DPG]

The ones we used to use for linking and fusing on open vertical LV boards in substations has a female threaded socket on the end of a 2’ paxoline stick. The technique was to insert the lower blade of the link or fuse indo the load side of the carrier and quickly “knife” it into the supply side . (Usually with your face turned away) ?

Did you have face visors?

 

[Micktw68]

Did you have face visors?

This was a Little before they became standard PPE .