Previous in Forum: Seismic Vibration   Next in Forum: Practical Uses for That IR Thermometer You Bought
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
7 comments
Rate Comments: Nested
rudrasree
Member

Join Date: Jun 2013
Posts: 9

Material of Construction for Junction Box

07/02/2014 5:23 AM

Hi,

What are the criteria to be kept in mind while selecting GRP Junction boxes and Stainless Steel Junction Boxes. Or what are the merrits and demerrits of these.

regards
Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Good Answers:

These comments received enough positive votes to make them "good answers".

"Almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!
5
PWSlack
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#1

Re: Material of construction for Junction Box

07/02/2014 6:39 AM

1) The desired ingress protection [IP] rating and the IP rating of the junction box before modification to make entries to receive cables.

2) The compatibility of the materials with the various fluids that may be present in the area.

3) The compatibility of the materials and contents with the temperatures likely to be encountered in the area.

4A) The compatibility with any hazardous area constrains placed upon it due to its location.

4B) The compatibility of the internal segregation between intrinsically safe circuits and those not fitting that description that may be found within it upon completion.

5) The compatibility with the number of cable entries to be made.

6) The compatibility with the numbers of terminations to be made.

7) The compatibility of the cable glands with any hazardous area constraints placed upon it due to its location.

8) The compatibility of the cable glands with the desired ingress protection rating of the completed installation.

9) The mounting arrangements for the box.

10) The risks of impact damage, either deliberate through, for example, someone using it as an improvised stepladder, or inadvertent such as being bumped by a fork-lift truck.

11) Its size and the ability to use tools inside it.

12) Etc.

__________________
 "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Register to Reply Good Answer (Score 5)
Go to Next Good Answer
rudrasree
Member

Join Date: Jun 2013
Posts: 9
#2
In reply to #1

Re: Material of construction for Junction Box

07/02/2014 7:58 AM

Can you please specify in which enviornment we can use SS and GRP.
Register to Reply
PWSlack
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#3
In reply to #2

Re: Material of construction for Junction Box

07/02/2014 8:25 AM

Industrial, commercial and domestic.

__________________
 "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Register to Reply Score 1 for Good Answer
No more "Almost" Good Answers.
jack of all trades
Guru
New Zealand - Member - Kiwi Popular Science - Weaponology - New Member Engineering Fields - Power Engineering - New Member Engineering Fields - Electrical Engineering - New Member

Join Date: Sep 2006
Location: Auckland, New Zealand
Posts: 8777
Good Answers: 376
#4
In reply to #2

Re: Material of construction for Junction Box

07/02/2014 3:59 PM

They each have their own advantages and disadvantages, but generally they can both be used in most places.

Places you may want to use SS over GRP would be in the food and beverage industry, chemical industry, farming, etc or wherever harsh solvents, heavy wash-down or cleanliness to limit bacterial growth would be an issue.

What's the application exactly?

__________________
 jack of all trades
Register to Reply
2
lyn
Guru

Join Date: Oct 2008
Posts: 42355
Good Answers: 1693
#5
In reply to #2

Re: Material of construction for Junction Box

07/02/2014 4:47 PM

You should consult with the local codes and

NFPA 70 - New 2014 NFPA 70 Code Book - nfpa.org‎.


Since this is an intergalactic forum, location, location, location is important, important, important.
Register to Reply Good Answer (Score 2)
No more Good Answers. Go to first "Almost" Good Answer
Phys
Guru
Engineering Fields - Instrumentation Engineering - EE from the the Wilds of Pa.

Join Date: Feb 2006
Location: middle of nowhere, Pennsylvania
Posts: 2603
Good Answers: 63
#6
In reply to #1

Re: Material of construction for Junction Box

07/03/2014 8:16 AM

You could have left at least one consideration for the rest of us to submit.

Perfect.

__________________
 Remember when reading my post: (-1)^½ m (2)^½
Register to Reply Off Topic (Score 5)
PWSlack
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#7
In reply to #6

Re: Material of construction for Junction Box

07/04/2014 8:16 AM

Oh, look. Another undefined plural. How sweet. ;-)

__________________
 "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Register to Reply Off Topic (Score 5)
Register to Reply
Have a Different Question?
7 comments

Good Answers:

These comments received enough positive votes to make them "good answers".

"Almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!
Copy to Clipboard

Users who posted comments:

jack of all trades (1); lyn (1); Phys (1); PWSlack (3); rudrasree (1)

Previous in Forum: Seismic Vibration   Next in Forum: Practical Uses for That IR Thermometer You Bought

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Instrumentation:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (59 right now)
Show Members
Advertisement