Dangerous Water Heater - Update
Following on from the previous article on dangerous water heaters, I have found some excellent Youtube videos on these heaters by ‘bigclivedotcom’. As well as the small cup heater that we previously tested, Clive shows a larger version that is sold for heating babies baths!
Clive also details a Turkish kettle using the same live electrode water heating method. bigclivedotcom - Inside a dodgy Turkish "stinger" kettle.
I ordered my own Turkish coffee kettle from Ebay to add to the Plugtest collection.
The kettle does have some warnings in the instructions, including: 'When the plug is in the socket, do not put your hand in the appliance or in the water remained in the appliance'. 'Never use a metal spoon'.
Using the same method as before, I measured the touch current using a clamp meter and a test lead with a 2kΩ resistance attached to a metal spoon. The measured touch current was 52mA, enough to cause a serous electric shock.
|Current (mA)||Effects on the body|
|1.5||First noticeable sensation|
|2.5||Tingling in palms|
|7.5||Hands stiffening, 'let go' still possible|
|10 - 15||Cramp increases; limit of 'let go'|
|25 - 30||Severe cramp extending to the thoracic region|
|30 - 50||Increase in blood pressure; heart irregular|
|50 - 60||Respiratory system affected; loss of consciousness|
|60 - 75||Lower threshold of heart fibrillation|