01_Welding_Health_and_Safety_2-ok(chi)

Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Welding Health and Safety,焊接的健康与安全,Welding Health and Safety,Hazards:,危害性,Welding has both“Apparent”hazards and“Hidden”hazards.Apparent hazards are those which can be easily identified.Hidden hazards are those not seen and often forgotten.,焊接分明显的危害和隐藏的危害，明显的危害是容易鉴定而隐藏的危害是不明显而且容易忽略的。,Some of these are:,Electrical Shock,触电,Over exposure to arc radiation,电弧光辐射,Fumes and gasses,有害的烟和气,Burns and fire,灼伤和火灾,Compressed gas cylinders,压力容器,Noise,噪音,Welding Health and Safety,Electrical Safety:,电气安全,Electric shock and electrocution are possible hazards with all welding processes.,在整个焊接过程中，触电和电击是可能存在的危害。,There are two different areas of concern.,有两个不同的区域,需要注意,The primary side,主要方面,Fuse or Breaker panel,保险丝或者断路面板,Power Supply cables,电源线,Internal parts of the power source.,电源内部零件,Welding Health and Safety,Electrical Safety:,Electric shock and electrocution are possible hazards with all welding processes.,在整个焊接过程中，触电和电击是可能存在的危害,There are two different areas of concern.,有两个不同的区域需要注意,The primary side,主要方面,Primary side power is normally is high amperage/high voltage.The welder should not work in this area.It should left up to a qualified maintenance person.,初级电源普常是高电流,/,电压,焊工不应工作在这个区域。它应该由一个合格的维护人操作,。,Welding Health and Safety,Electrical Safety:,Electric shock and electrocution are possible hazards with all welding processes.,在整个焊接过程中，触电和电击是可能存在的危害,There are two different areas of concern.,Exposed wires on the welding lead,焊接端面上的裸线,Contact with the electrode and the work piece.,电极和工件之间的连接,Wet gloves or skin.,湿的手套或者外套,The secondary side:,次级方面,Welding Health and Safety,Electrical Safety:,电气安全,Which is more dangerous?,哪个更危险？,AC Current or DC Current,交流电或直流电,In GMAW,AC current is more dangerous.,气,体保护电弧焊中交流电是很危险的,Paralyzes voluntary muscles.,肌肉麻痹,AC is the primary power for welding which is much higher than the output welding current.,交流电主电源处电压比输出端高很多,DC Current can cause sever internal burns but does not paralyze muscles.,直流电能引起严重的内部燃烧，但不会使肌肉麻痹,Welding Health and Safety,Electrical Safety:,电气安全,Work Return Lead vs.Ground.,工作回路引线和接地,The work return lead is often referred to as the ground.,工作回路引线有点像接地。,Work return and grounding are two different things.,接地和,工作回路引线,是两种不同的事情。,Welding Health and Safety,Electrical Safety:,电气安全,Work Return Lead vs.Ground,工作回路引线和接地,Grounding is:,A cable attached to a copper rod driven into the ground.,电缆联接铜棒插入地下,Its purpose is to carry away current in case of a transformer fault,power surge,or stray voltage.,它的目的将使在变压器故障,电力高峰及短路情况下把电流导入地下,Welding Health and Safety,Electrical Safety:,电气安全,Work Return Lead vs.Ground,工作回路引线和接地,A Work Return Lead is:,一个,工作回路引线,是,A cable attached to the work piece.,电,缆被连接到工件上,Its purpose is to create a complete circuit for welding.,它的目的是使焊接时建立一条完全回路,。,Welding Health and Safety,Electrical Safety:,电气安全,Connecting the Work Return lead.,连接,工作回路引线,Proper connection is very important for several reasons.,正确的连接是非常重要的，原因有以下几个,1,The welding current will find the easiest path back to the,P,ower source.,焊接电流将容易找到返回到功率源的路径,2,Possibly through the building if there is a metal floor.,容易通过金属平台穿过建筑,.,3,Through an attached lifting device such as an overhead crane.,通过一个附属的起重装置例如一架吊车,4,Through power tools if there are other operations being performed on the assembly you are welding on.,当在焊接时如果有组装的时候，,通过一个手动工具。,Welding Health and Safety,Electrical Safety:,电气安全,Possible current return paths.,目前可能的返回路径,Through overhead lifting devices.,通过起重设备,Through power tools used for other operations on the same unit.,在同一个产品上操作时，通过电动工具,Through metal plates that may be placed in the floor for other functions.,通过放在地上的金属板或类似物品,Welding Health and Safety,Electrical Safety Tips:,电气安全提示,Power Source.,电源,Should be installed and serviced by a qualified electrician or maintenance person.,持有电工证的电工或则维修人员安装电源和维护。,Avoid working near primary side power cables.,避免在主要电源端附近工作。,Never run over primary side or any other power cables with a forklift.Also,be careful not to drop heavy objects on power cords.Damage to the outer casing can result and expose the conductor underneath.,绝对不能使用叉车压住主要电源端和任何电源线。同样，小心不要掉重物在电源线上。破坏电器箱将会是使导体裸露。,Welding Health and Safety,Electrical Safety:,电气安全,Welding Equipment.,焊接设备,Check cables for worn or cut insulation.,检查电源线是否磨损或者绝缘断开,Let your supervisor know if damage is found so maintenance can be called.,如果发现破坏，通知你的主管让维修人员去修理,Welding Health and Safety,Electrical Safety:,电气安全,Protective Clothing.,防护服,Wear proper gloves that are dry and free of holes.,穿那些干燥的且有通气孔的特制的手套,Wear rubber soled safety shoes.,穿橡胶制作的安全鞋,Welding Health and Safety,Electrical Safety:,电气安全,Work Return Lead:,工作回路引线,Make sure the work return lead is properly connected near the point of welding and makes good electrical connection.,确定工作回路引线是被正确的夹在焊接点的附近和确保有好的电气连接。,Do not place the power source on a floor that could conduct welding current.,不要将电源放置在能导电的地面上,Never leave an overhead crane or other lifting device connected to the