aren't K9 clamps dog muzzles?
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Discuss My "Line/Wago" Products experience... in the Electrical Tools and Products area at ElectriciansForums.net
Just been looking them up, they look interesting , no stripping or screws they just clamp on to cable. not sure if they will be any good for what I want to use them for but they do look interesting. I am sending off for a free sample to get a closer look.Any tried k9 clamps by Hylec
think I will give them a miss thenDidn't some mention k9 clamps this week and they got slated as a fire hazard ?
EDIT: found the thread http://www.electriciansforums.co.uk...al-regulations/79899-kwik-wire-connector.html
Sorry about the slow reply.just placed my orders (2), I note that your L324L are from 0.75mm flex size, that's ok for me at the moment as i still have stock of this size. However in the future i feel that 0.05 would be a little cheaper as we only use LED. I could probably run all of the lighting on bell wire. Will you be introducing a 0.05 mm version.
I forgot I was going to say something on this one.I have a few questions regarding these line jobbies.
Why do the connectors have to be derated when used as a maintenance free connection? Does this mean that they can't actually be relied on to work at their rated current?
How does a cable tie with writing on it make the enclosure maintainance free? what is special about this cable tie in relation to any other cable tie?
I like the look of the inline 2 port connector, but could you create a simillar thing that has a lug at one end? like a push fit version of the blue/red lugs?
That's ridiculous! why aren't these connectors designed to not require maintainence full stop. This sounds to me like sub-standard parts are being produced. The connectors should be rated such that they don't suffer thermal stress anyway regardless of where they are installed. Does this mean that the connectors are likely to suffer from thermal stress when used in non MF situations and therefore will have a reduced lifespan?
Do we need to oversize the cable to avoid it placing thermal stress on the connector? surely a cable which operates at 70 degrees will still operate at 70 degrees even if the connector is down-rated? For example a line 32 amp connector de-rated to 20 amps but used to join a 1.0mm t+e running at 70 degrees will still get heated to 70degrees won't it?
This just sounds like a bodge it and scarper method of getting over cut price manufacturing.
I still don't understand why a maintenance free enclosure needs to have these special cable ties with writing on it? You use a maintenance free joint in situations where the joint is inaccessible therefore nobody will see it to read the writing?
So they are making these connectors without a rated lifetime. Then de-rating them for use in a MF situation so as to extend the lifespan, but they cannot tell us what the original lifespan was or what it will extend to when de-rated? How do they know that de-rating it is going to extend the lifespan? Why are they not producing connectors which will stand the test of time?
As far as connectors which already exist go they have bee around for a long time and we can all see from existing installations how they stand the test of time when properly installed.
What will that cable tie achieve though? Looking at the picture of them on the website you can see that the writing has already started to rub off of the cable ties, and that's the stock photo from the website! Really doesn't inspire any confidence in its longevity does it?
If discovered at a later date it is likely to have developed a layer of dust or whatever which will have covered the cable tie, and who is going to know what it all means? "instructions must be followed" isn't going to mean jack to anyone other than an electrician who wouldn't need to be told that anyway.
They will originally have been designed for an expected lifetime. Then samples will have going through excellerated testing (temperature, humidity and vibration cycling while under maximum rated load probably) to prove that they meet the expected lifetime. I suspect the pass/fail criteria for this testing is the increase in resistance measured. That is for non-mf use.]So they are making these connectors without a rated lifetime. Then de-rating them for use in a MF situation so as to extend the lifespan, but they cannot tell us what the original lifespan was or what it will extend to when de-rated? How do they know that de-rating it is going to extend the lifespan?
They are, they will have been proved to meet the requirement at the specified (i.e. derated) current.Why are they not producing connectors which will stand the test of time?
yes, badly from my experience :lol:As far as connectors which already exist go they have bee around for a long time and we can all see from existing installations how they stand the test of time when properly installed.
All it achieves is ensuring the electrician that fitted it is meeting the regs. BS5733 and BS7671 (reg 526.3 vi) say that it must be MF marked. Other than that you are right, no-one will see it again so who cares.What will that cable tie achieve though?
So they are making these connectors without a rated lifetime. Are they ? where did you get this from ? Then de-rating them for use in a MF situation so as to extend the lifespan, but they cannot tell us what the original lifespan was or what it will extend to when de-rated? What's the exact lifespan of any other electrcial connector according to the manufacturer ? How do they know that de-rating it is going to extend the lifespan? Why are they not producing connectors which will stand the test of time?
As far as connectors which already exist go they have bee around for a long time and we can all see from existing installations how they stand the test of time when properly installed. Then if the test of time is the only test you value, we will have to wait and see won't we ? Despite these connectors passing relevant standards before sale, the same as any other connector.
What will that cable tie achieve though? Looking at the picture of them on the website you can see that the writing has already started to rub off of the cable ties, and that's the stock photo from the website! Really doesn't inspire any confidence in its longevity does it?
If discovered at a later date it is likely to have developed a layer of dust or whatever which will have covered the cable tie, and who is going to know what it all means? "instructions must be followed" isn't going to mean jack to anyone other than an electrician who wouldn't need to be told that anyway. This applies to all MF marked enclosures then doesnt it ?
Reply to My "Line/Wago" Products experience... in the Electrical Tools and Products area at ElectriciansForums.net
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