In theory they are of course unsafe if a child unscrews a bulb, but in
practice, I have had no problems with them as long as you always fit a fuse
bulb and that the place where they go into the holders are well sealed.

Brian

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This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please!
"Fredxxx" wrote in message
news
I've been asked to look at some old Christmas tree lights.

I am confident this will be the of the direct mains type with single
insulated twisted pair and probably conforming to BS 4647:1970.

I am aware new mains lights of this type would have additional insulation
as per BS EN 60335.

Obviously I can only do a visual inspection on them, but what is the
current thinking of single insulated mains cable in terms of PAT or
equivalent testing?