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Since the leakage protector in batteries to get an electric shock protection solar led lights
by：ALLTOP
2021-02-01
Originally not to install street lamp leakage protector, partly because not go up;
Second, determine the action current leakage protector is bad, if installed and can be no action.
If the current action of setting body greater than the limit current under 30 ma, protect the invalid!
Mount
is not to the original leakage protector' Leakage protector, referred to as 'leakage switch, also called leakage circuit breakers, leakage is mainly used in equipment failure, and to a potentially lethal person get an electric shock protection, overload and short circuit protection function, can be used to protect lines or motor overload and short circuit, can be in normal circumstances for the use of line not frequent conversion start. 】 And partly because not go up; Second, determine the action current leakage protector is bad, if installed and can be no action. If the current action of setting body greater than the limit current under 30 ma, protect the invalid! Mount is also useless, without any role; But if less than or equal to 30 ma, and because of street lamp line is longer, and it is open, the physical leakage situation will be more than 30 ma, and often lead to misoperation 【 Misoperation is refers to the power system in normal operation without abnormal failure for protection, or when the power system failure or abnormal situation after the protection of the brake, or in the event of a failure or abnormal situation but haven't reached the brake protect and brake the premise of protection, thus caused serious influence on power system. 】 ! So it's impossible to light lamps. Two phase power take its light, after weighing the pros and cons, not to install street lamp leakage protector.
electrical appliances, lamps and common contact even if don't do ground wire, lighting inside the joint leakage occurs between the light pole and there will be a significant number of imported the earth, so someone touch charged light pole, is the size of the leakage area and light pole of resistance between parallel resistance again, so even if a few hundred ma leakage, whereas the current through the body is very limited, in this case if selected 30 ma leakage protector is no work, because of more than 100 ma leakage protector can guarantee personal safety. You know, 30 ma leakage protector to prevent personal injury, ma - 100 300 ma used to prevent leakage protection electric lamp quotation gas fire prevention.
there is another reason is that street light cable generally is very long, so the wire to ground between large capacitance, sometimes can be more than zero JiWei method, it is can provide pathways for alternating current (ac), which made leakage protector misoperation. So now, the street light project most used in each of the light pole alone do grounding way, when the leakage is not serious not dangerous foreign; If leakage serious open will trip, also won't produce 'step' A step voltage, is refers to the electrical equipment grounding fault occurs, walking around the earthing electricity into the location potential distribution area, the voltage between the two feet. 】 ', so safety is guaranteed.
during the winter, the snow was falling, the greater the streets empty again, only the few lamp posts, where still stands, quietly it props up a stretch of the edges, for pedestrians on the street with a bright, with a little warm, silently waiting for you, never stop!
is not to the original leakage protector' Leakage protector, referred to as 'leakage switch, also called leakage circuit breakers, leakage is mainly used in equipment failure, and to a potentially lethal person get an electric shock protection, overload and short circuit protection function, can be used to protect lines or motor overload and short circuit, can be in normal circumstances for the use of line not frequent conversion start. 】 And partly because not go up; Second, determine the action current leakage protector is bad, if installed and can be no action. If the current action of setting body greater than the limit current under 30 ma, protect the invalid! Mount is also useless, without any role; But if less than or equal to 30 ma, and because of street lamp line is longer, and it is open, the physical leakage situation will be more than 30 ma, and often lead to misoperation 【 Misoperation is refers to the power system in normal operation without abnormal failure for protection, or when the power system failure or abnormal situation after the protection of the brake, or in the event of a failure or abnormal situation but haven't reached the brake protect and brake the premise of protection, thus caused serious influence on power system. 】 ! So it's impossible to light lamps. Two phase power take its light, after weighing the pros and cons, not to install street lamp leakage protector.
electrical appliances, lamps and common contact even if don't do ground wire, lighting inside the joint leakage occurs between the light pole and there will be a significant number of imported the earth, so someone touch charged light pole, is the size of the leakage area and light pole of resistance between parallel resistance again, so even if a few hundred ma leakage, whereas the current through the body is very limited, in this case if selected 30 ma leakage protector is no work, because of more than 100 ma leakage protector can guarantee personal safety. You know, 30 ma leakage protector to prevent personal injury, ma - 100 300 ma used to prevent leakage protection electric lamp quotation gas fire prevention.
there is another reason is that street light cable generally is very long, so the wire to ground between large capacitance, sometimes can be more than zero JiWei method, it is can provide pathways for alternating current (ac), which made leakage protector misoperation. So now, the street light project most used in each of the light pole alone do grounding way, when the leakage is not serious not dangerous foreign; If leakage serious open will trip, also won't produce 'step' A step voltage, is refers to the electrical equipment grounding fault occurs, walking around the earthing electricity into the location potential distribution area, the voltage between the two feet. 】 ', so safety is guaranteed.
during the winter, the snow was falling, the greater the streets empty again, only the few lamp posts, where still stands, quietly it props up a stretch of the edges, for pedestrians on the street with a bright, with a little warm, silently waiting for you, never stop!
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