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GENERAL
The need to produce products that are safe, convenient and effective for humans has prompted the amount of attention to the development of science of ergonomics. Ergonomics as a science that considers the capabilities, characteristics and limitations of humans in the process of designing products and systems begin to work is viewed as one important solution for someone or working groups who want to further improve health and comfort
works. Enhance safety, comfort, and health of workers and the environment in turn will increase productivity and work performance. That is why in recent years is the number of enthusiasts and observers ergonomics began to grow rapidly in Indonesia
accordance with Permanaker No. 1 of 1980 on Occupational Safety and Health in Building Construction Chapter IV of the Stairs and Staircase House stated that the ladder must be made with as well as possible so as to ensure the safety of the work.
BEFORE USING LADDER
operation Process an perlalatan sometimes been affected, as in ESP Hopper could have a blockage (plugging). Plugging must be overcome for the process flow of fly ash from ESP hoppers one line to another smoothly. To overcome these problems, the operator uses the tool in the form of pole made in such a way and a drum used for safety at height equipment. The operator marks up the drums, upright body position, feet positioned on the edge of the drum, two hand-held pole and the pole tip is directed into the hole on the ESP Hoper. Movable vertical pole repeatedly, sometimes horizontal movement. Targets are clumps in ESP Hopper can be destroyed. Some potential accident or inconvenience that would terjadiu is:
1.Posisi foot on the drums because the former allows the foot slip surfaces and edges smooth drums drum there is no barrier.
2.Untuk move the drum from the position of the hopper into the hopper the other one requires more energy.
3.Karena height difference between the drum used by high-hopper from the floor far from the reach of the operator, the operator's head position more often look up from the straight position flat water.
4.Jika tired standing position, the operator got out of the drum and rest a while and then go up again, resulting in the movement up and down from
height ± 80 cm.

WORKERS MAKE
To minimize risk of accident or injury on the job to overcome interference in EP Hopper, have been fabricated ladder as a work tool that is safe and comfortable. Stairs To design a safe and comfortable construction steps needed to be strong and ladder components shall refer to the rules of Ergonomics

DESIGN LADDER Ladder
1.Anak
To achieve the ideal level of comfort, stair widths 20-33 cm and height of children steps 15-18 cm. Stairs 2.Kemiringan

To obtain the ideal staircase with a slope of 45 °, high ladder (y) must be no larger than the long staircase (x), maximum y = x.
3.Pagar and Grip Ladder
order for stairs safe and comfortable, then ladder must be equipped with a fence and a handle. The fence serves to avoid the risk of falls and should be made high enough Meeting and 90-100 cm. There are no sharp parts so that no potential user menciderai.
4.Bordes
To provide comfort, every height a maximum of 12 steps, (at 1.5 - 2 m) so that made the landing (landing) is a broad flat platform approximately three to four steps before climbing to the next rung.
5.Bahan
Anti Slip Hazards for ladder users, among others slip because the slip. To that end made a step ladder for nosing, ie the more rough. Material from step nosing include rubber, aluminum or ceramic.
6.Pencahayaan
Especially at night, lighting in the area of \u200b\u200bthe stairs were very influential in setting safety and comfort so that the lamp positions must adjust the position of the ladder.

LADDER AFTER USE
To overcome the interference with the EP Hopper, the operator uses the results of design steps that refer to the rules of ergonomics, so the ladder can be used optimally. Benefits after using a ladder, among others:
1.Posisi foot is concentrated on the steps that have been designed with the step nosing and width which refers to the ideal width so that the risk of slipping can be minimized.
2.Untuk hoppers move from one position to another haopper, live operators to encourage households already equipped with wheels so it does not require extra power, when used to work the wheel ladder so that its position remains locked. High 3.Karena
stairs have been adapted to the height of the hopper, the operator standing position can be tailored to the needs and the head fixed in a flat position.
4.Jika tired condition, the operator simply down the stairs and not have to jump as when using drums.

Thank you hopefully can be useful