electric safety
Electricity is essential to power tools, provide lighting and heat it must be respected even the best and safest of installations can cause danger if abused. Electricity is when all safety precautions have been established and are maintained. Work on electrical equipment can only be carried out by competent person.
· Electric shock caused by direct contact with the conductors and cables.
· Contact with uninsulated overhead lines and buried cables.
· Arcing from uninsulated overhead lines and equipment.
· Using electrical equipment in wet or damp conditions.
· Faulty equipment.
· Fires and explosions.
· Work on electrical systems and equipment must only be carried out by persons who have been trained and authorised – Electricians.
· Check each day connections to tools, plugs and cables for wear or damage before connecting to the supply.
· Route extension cables so they are not exposed to damaged by the work being carried out, or become trip hazards.
· Do not use equipment or extension leads that have been repaired with insulation tape. Have the correct repairs or joints been made. Report any visible damaged immediately.
· Never overload equipment eg do not use lighting circuits to run portable tools.
· Disconnect appliances and tools when not in use. Hold plug to remove from socket, do not pull on the cable.
· Do not carry or lower portable tools down from height by holding the cable.
· Contact with overhead power lines is not required for electrocution to occur as arcing can take place when persons or objects eg scaffold tubes, are some distance away. Even when turned off they can retain a charge which has to be discharged to earth before they are safe.
· Electricity Board supply equipment eg Sub-Stations, may have exposed uninsulated parts. Never go beyond fences or put objects through or over them. Electrocution can take place by arcing as well as contact.
제주도 서쪽 비양도라는 섬이 있습니다. . 비양도는 제주시 한림읍 비양리 위치해 있으며, 하늘에서 날오온 섬이라는 의미를 지니고 있습니다. 비양도는 한림항에서 약 1.1km 떨어져 있으며, 섬의 모양은 원형에 가깝고 약 2000여명의 주민이 거주하고 있습니다. 비양도의 중앙에는 해발 114m 높이의 비양봉 본석구가 있고, 서쪽 해안에는 제주도에서 가장 큰 초대형 화산탄들이 분포하고 있습니다. . 섬의 북쪽 해안에는 호니토(homito)로 알려진 굴뚝모양의 바위들이 약 20여기 분포하고 있다. 호니토는 용암이 흐르다가 습지 등의 물을 만나 수증기와 용암이 뒤섞여 분수처럼 솟구쳐 나와 쌓여 만들어졌으며, 천연기념물 제439호로 지정되어 있습니다. . 섬의 동쪽에는 펄렁못 엄습지와 마을 신당이 위치해 있습니다. 최근까지 비양도는 약 1,000년 전에 분출한 섬으로 알려져 왔으나 용암의 나이를 분석한 결과 27,000년 전에 형성된 것으로 조사되었습니다. . …