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Knob and tube wiring was considered “state-of-the-art” back then, but now it is very dangerous, is in violation of current legal electrical codes and is not insured by most insurance companies. 1) Knob and tube wiring is two-stranded – with a hot wire and a neutral wire only – it uses no ground wire.There is absolutely no protection whatsoever when a fault occurs.If you don’t have enough wiring, it can lead to inconvenient voltage drop-offs that will damage electronics, require excessive use of extension cords, and increase the risk of fire and electrocution., which may be worn out and lacks the capacity to handle modern electric loads.In fact, many insurance companies will not cover your home unless knob-and-tube wiring is either replaced or augmented with updated electrical wiring.Older houses often have what is called ‘knob and tube’ wiring.This wiring is considered dangerous by most insurance companies today, making it hard to insure homes and buildings that incorporate it.

for old houses was 60 amps, but today’s homes require a new standard of 200 amps, to handle things like HVAC equipment, computers, high-definition televisions, and home automation systems.for “all electrical work except the replacement of lamps, the connection of portable appliances to suitable, permanently installed receptacles, or for the replacement of over-current protective devices which have become defective or inoperative.” by a qualified electrician can help.He or she will investigate your entire electrical system and identify specifically what needs to be changed and what can be left alone.Shocks and fires can easily result from faults caused by knob and tube wiring.2) Knob and tube wiring uses sheathing for insulation and both of these disintegrate easily over time.

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