Month: July 2018

If your are searching for  BS numbers for old  Isolators, and Protection devices which are now redundant then here is a few from the past

BS 5419 1977 wylex Isolator 100A

BS5419 1977 Wylex Isolator 60A

BS 861 Part 2 1972 BS 861 Part 1 1955 no image Yet

BS 4293 30mA Wylex RCD

The old crabtree C50 MCB BS3871 type 2

The Dorman Smith Loadmaster M3 BS3871

SOLVED TV Screen flickers

I recently had a call about someone’s TV screen  flickers  out or going blank for a moment when the switch on any light in the house or bathroom fan. After checking for any loose connections on the lighting circuit, I then focused on the equipment. They had a LCD TV with a satellite box wired through a string of extension leads. I tried to change to just one extension lead but the problem was still there. Then I plug the TV and sat box straight into the wall sockets but the problem was still there. Next we tried an extension lead with Surge Protector and Mains Filter. But still the same problem.

Then we took a look at the lead from the sat box to the TV. . It was a cheap hdmi lead. We swapped that for a high quality one and hay presto the problem had gone!

A special thank to © Andreadams1974 @ https://www.stockfreeimages.com for tv image

You may encounter many problems fitting dimmers to led lamps and bulbs. Lights may stutter or flicker while dimming as well as flicker in set positions

I recently was asked to fit a dimmer in a lounge which had 15, 5w Led GU10s. The client had already bought a dimmer which on the pack said 60 to 400w. However once i opened the pack and read the leaflet inside for Incandescent the load was 60 to 400w but for LED’s it was 5 to 50w. I have noticed that a lot of packaging is not stating the load specs for LED lamps. I feel this is something which needs to improve as most installations are gradually switching to LED’s. as well make sure what is the maximum number of Led’s which can be used on the dimmer