How to calculate the wattage wattage and power of the wire?
Cable ends should be marked with cable head symbols, the middle line should also be different from the ordinary wiring.
Better wire will be marked on the wire parameters, so that know what to buy the line
In addition, in addition to protecting the waist, sleeping hard bed for the elderly with heart disease is also very important. In general, the sudden death of heart disease in the scene mainly in the field, if the rescue can often turn the corner, and the heart of the rescue techniques must be carried out on the hard board, so the heart of the elderly hard to sleep hard bed. Of course, sleep hardboard bed is not to say that we must sleep hardwood bed, some old people due to osteoporosis lead to deformation of the spine, this situation can not sleep hard bed. Health experts suggest that the bed for the elderly should be the body in the supine position to maintain the normal lumbar physiological lordosis, side to keep the lumbar spine is not bent, so long as there is a certain hardness of the mattress on it. Many elderly people have lumbar muscle strain, lumbar disc herniation, low back pain and other illnesses, it is not suitable for sleeping soft bed, otherwise the condition will increase, so strong water resistance, corrosion resistance, excellent flexibility, toughness, coconut palm Mattress has become the first choice for the elderly mattress. Mountain brown silk or coconut brown silk made of full-brown fiber elastic mattress is characterized by: breathability and water permeability is good, the winter can keep the mattress dry, summer conducive to heat, In addition the whole brown mattress there is a feature that is uniform force, soft and hard moderate, it is not forced when the spring issued a friction sound, but will not appear "spring, spring" phenomenon. Tip: some bad waist people often put the hope of cure on the mattress, and some unscrupulous businessmen use the psychological psychology of consumers without the effect of the mattress boast hype, consumers after the use of increased the disease , So for the elderly to choose these publicity efficacy of health care mattress must be careful to prevent deceived.
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