table 310.20 (messenger)

[wyatt]

I have not been around in the electic world just trying to learn but what is a messenger

 

[websparky]

Re: table 310.20 (messenger)

One step below an apprentice.

 

[celtic]

Re: table 310.20 (messenger)

..usually the first one to get dead.

Seriously, though....the messenger is what supports a wire from , say, pole to pole or from pole to POA.

Look, Ben's pointing at it and the conductors (triplexed):

 

[wyatt]

Re: table 310.20 (messenger)

do you mean those stack of tea cups on a pole that you see

 

[celtic]

Re: table 310.20 (messenger)

The wire on top is your messenger....the "tea cups" (as you call them) are probably insulators.

The messenger can be drawn tight, the conductors then hang off the messenger.

EDIT: Labeled picture ~ 4th notation down...

... and another:

[ January 17, 2006, 09:38 PM: Message edited by: celtic ]

 

[wyatt]

Re: table 310.20 (messenger)

thanks

 

[LarryFine]

Re: table 310.20 (messenger)

Another example: cable and phone trunks are suspended via messengers, the bare wire the cables are lashed to.

 

[charlie b]

Re: table 310.20 (messenger)

In seagoing parlance, a messenger is a small line that is sent over first (i.e., to the pier or to another vessel). It is connected to a larger line, which in turn is connected to a larger line, etc. You cannot easily toss a four inch line from ship to ship; using a messenger and increasingly larger lines makes the job easier.