It is a nightmare to strip. Did you find an easy way?
Use it quite a bit, different manufacturers make a. Difference some drums of it are worse than others, sometimes it comes off in one or two pieces to do a db, other times(rarely) it’s probably 50 pieces, Doncaster cable multi use and flexshield normally strips ok, atom is hit and miss and cheaper/unknown stuff can be an absolute nightmare if you want to avoid damaging the cores.
When it doesn’t strip nicely in longer pieces I find it quicker/less risk and hand pain to strip the cable in small pieces that slide off easily rather than fighting to remove a larger piece.
On the really bad stuff I have admitted defeat and stripped it off in tiny pieces an inch at a time as nothing else wanted to work without risking damage.
I usually use a jokari 15 cable stripper to neatly ring the cable and pull the sheath off on the smaller sizes- 1.5/2.5, 4mm jacket often is looser and pulls off in large pieces although sometimes it better to pull the sheath back with your hand rather than using the cable stripper,
That is my preferred method, however when that doesn’t work there are a few other ways to get it,
With a jokari 15 and possibly the ergo strip there is a blade that is used to cut into the insulation down the length of the strip the plastic then pulls off and the metal jacket can be untwisted/separated from the cores and removed,
Similar can also be done with a Stanley knife in the same way the outer sheath of an swa is removed by stripping the length required by sliding the side of the blade up against the swa armouring/metal sheath and then unwrapping the metal sheath.
With the last two methods you can also separate the cable and sheath at the end once you have sliced down the length, then pull the cores in one hand away from the sheath and the sheath in the other pulling in the opposite direction to separate them -as pulling the cores allows them to pull between the wraps of the sheath in the spiral.
Where the plastic sheath snd metal sheath are fused together and it doesn’t pull off in a few pieces it’s often necessary to strip the cable outer sheath along the desired length a few times to remove enough of the plastic sheath to allow the cores to pull through the spiral or to untwist it.
Side note- the sheath of the. Cable can only carry a limited amount of fault current when penetrated due to its design, so the maximum current and type and breaker you can use may be limited to a c20 or b32 For the same cable size