Terminating an armoured onto a cee form plug....bad practice?

I think you have misread my posts, i haven't mentioned using any SY on this job or what gland type i have (haven't!) used with it! i would never use an incorrect gland for a job as it would mean the job wasnt done right!

Although i wasnt aware it shouldnt be used for power, what should it be used for?

SY was originally designed as a control/signalling cable with screening ...it is not an armoured as many people incorrectly state, the braiding is not up to repeated bending and thus shouldn't be uses as a rough service extension and the manufacturers realised that this was becoming a trend so some stated that it is not to be used as such due to the inherent risks i mentioned already.... although saying this it can be if considered carefully be used as a power cable but you need to consider that it isn't been put through repeated flexing also its unlikely to get damaged and that the screened is fully earthed both ends as any puncture within the clear sheath can see the screen corrode and break apart. To also note the screen is not to be used as an earth, a separate core must be used... as the use of this cable is been altered manufacturers are now changing aspects of it to allow for its altered use and some now use galv braid to limit moisture damage on a punctured sheath but its UV protection is very low so normal summer daylight whether direct or not will deteriorate the integrity of the moisture barrier leading to the screen been corroded.... can tell you the number of times ive stripped this stuff out as it falling apart and on 2 occasions in the last few years ive found live braiding exposed at damaged points and this was been used as 3ph flex .... hence the inherent risk of changing the cables use without much thought as to what you are actually doing.

ahhh, well i can categorically asure you i would not use it as a three phase flex! and to be honest i always use 3core armored or sy so i have an earth.

I also appreciate the braid being a screen, but i did think it was there to provide mechanical protection. Thenonly screen cables i use are 8723/61 9723 etc which are a lottle further down the csa scale.

I never considered a 4mm cable needing a screen!

Interesting information though thanks!

As it is im going with my initial plan for armored on to ceeform.

I am confident that the armored will be terminated to a high standard providing i can attatch the gland to the ceeform, if not then i will scrap it and fit a JB.

CCheers for all the replies though, a few things cropped up that i hadnt considered and ive learnt a couple of things too! Brucey bonus.

Il dish out some thanks when im on the laptop

Ta chaps

I never considered a 4mm cable needing a screen!

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What has the size of conductor got to do with screening??

In essence, as you have been told, SY cable is a screened control/signalling cable, not a building cable, although it has been wrongly adopted as such by many, who treat it as a standard flexible cable!!....

Because the only screened cables i use are tiny signal cables. For such things like serials signals for projectors. Remote control panels for AV systems etc. I never once thought that a cable with csa of 1mm upward would be used for signals therefore it would not need screening.

Again, lack of experience on my part. Maybe im narrowing the scope of what i class as a signal. Then again all of the equipment i use has cvery small terminations/solder tags. It would be impossible to terminate a .5mm wire into it.

What equipment do you use that needs such large csa for signals?

What equipment do you use that needs such large csa for signals?

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Variable speed drives for/to motors is a common use.

Screening of cables works both ways, eg, for both containment and exclusion of detrimental influences...

Type 21 mines & quarries trailing flexible cable

Quarry regs don't let me use normal flex, so we use this type of stuff.

If money's no problem, this would do the trick.

I wouldn't use SY outside, it has seems to get condensation inside it pretty quickly, i.e within 5 years, also the boots on the glands disintegrate if used outside, IMO the SWA idea is fine enough for the purpose the OP suggested. I would use the best glands you can get so some strain is taken on the outer sheath, possibly E1W's or good quality CW's with the cone part of the gland that's separate, In this instance I would use a core as an earth.

somersetsparks said:

I wouldn't use SY outside, it has seems to get condensation inside it pretty quickly, i.e within 5 years, also the boots on the glands disintegrate if used outside, IMO the SWA idea is fine enough for the purpose the OP suggested. I would use the best glands you can get so some strain is taken on the outer sheath, possibly E1W's or good quality CW's with the cone part of the gland that's separate, In this instance I would use a core as an earth .

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In this Instance? .....the screen isn't an option for been used as earth a separate core should always be used but as already stressed the screen should be earthed.

darkwood said:

In this Instance? .....the screen isn't an option for been used as earth a separate core should always be used but as already stressed the screen should be earthed.

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Read it again Lol - I am saying I wouldn't use SY at all mate, I would go with swa like the Op says.

How about HO7RN-F. SWA to to a commando interlock outlet, mounted on the static brick wall, then come off that with the HO7 to the sheds board.

I like that idea. Simple and stupid!

somersetsparks said:

Read it again Lol - I am saying I wouldn't use SY at all mate, I would go with swa like the Op says.

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Yes sorry somerset.... just re-read

that's o k mate consider yourself forgiven good sir!