POSITIVE FALL PROTECTION
All persons who will be responsible of working in high positions shall be physically, medically, and emotionally qualified for performing the duties to which they are assigned. Some factors will be considered in making work assignments are strength, endurance, agility, coordination, and visual and hearing acuity.
The Workers will wear either a full-body harness fall arrest system or a body-belt fall restraint system.
A fall arrest system must be used any time working at the roof of the Hanger or any elevated level and exposed to a fall hazard 6 ft (1.8 m) or greater. It consists of an anchorage capable of supporting 5,000lbs (2268 kg) per attached employee, an anchorage connector, a connecting means such as a shock absorbing lanyard, self-retracting lanyard, and lifeline, and a full body harness.
Fall restraint system will prevents the worker from reaching an area where free fall could occur and consists of an anchor point, anchor connector, full body harness or body belt with back mounted D- ring, and a connecting means.
Fall work positioning system: is designed to hold a worker in place leaving both hands and feet free to work and limits the maximum potential fall to no more than 2ft (0.6 m). A fall arrest system should be used in conjunction with a work positioning system when the user is at elevated heights. if consists of an anchorage, full body harness or body belt with D-rings for attaching work positioning equipment and connecting means.
Personal fall arrest systems shall decelerate and bring the employee to a complete stop within 106.6cm, excluding lifeline elongation, after free fall distance.
Body harnesses shall consist of straps that are secured about a body in a manner that distributes the arresting forces over at least the thighs, waist, chest, shoulders, and pelvis, with provision for attaching a lanyard, lifeline, or deceleration device.
Horizontal lifelines shall be designed, installed, and used, under the supervision of a qualified person, as part of a complete personal fall arrest system, which maintains a factor of safety of at least two.
Ropes and straps (webbing) used in lanyards, lifelines, and strength components of body belts and body harnesses shall be made from synthetic fibers.
Employees shall not be allowed to work in the roof of the hanger unless the following conditions are
determined to exist:
* The load test and proof test requirements are satisfied,
* Hoist ropes are free of kinks,
* Multiple part lines are not twisted around one another,
*The primary attachment is centred over the platform, and the hoisting system is inspected if the load rope is slack to ensure all ropes are properly seated on drums and in sheaves
1- Permissions Before Starting the Work
Before work commencement we need to take all permissions from the local Authority; to take into account all electrical installations, cables, water pipes, sewage pipes and communication cables at the site, One of the important things in this work is to get the digging permission before any excavation is performed in the site.
2- Safety During Excavation
Special precautions must be followed during excavation; most of the excavations are conducted by machines and the site will be controlled so there will be indication lights, men waving with flags, there will be indication and caution signs and we also use orange lights at the ends and on the excavation machine. The site of work will be surrounded with coloured struts and caution tapes, tapes must be kept tight and in three levels to warn everybody not to be through.
3-Excavations Bracing; Shoring
No excavation conducted in the site performed without taking an excavation permit from the resident engineer, all narrow and deep excavations must be braced against side slope failure. Calculations for side slope safety must be presented by the contractor before applying for the excavation permit.
We also have our own techniques in dewatering we do have pumps, well point system, digging wells with filters and all pumps used are diesel pumps of the type called “Donkey Pumps”. We also have to take permission to pump out water from the sewage directorate and this water must be treated (filtered) before it will be pumped out.
Tested materials is kept in a special area in a corner of the site for storing materials for work,- areas assigned to be used jar storing our pipes, tools, raw materials and also a resting area, in which a small kitchen for workers is provided must take a corner at the site.
While work is in progress, offices, facilities, access ways, working areas, construction roads, etc., shall be lighted by at least the minimum light intensities.
7- Worker’s Special Equipment
Besides that all workers were provided with uniform, boots, glasses and helmets in this work special equipment were prepared among others are anchors, safety belts should be anchored to a fixed steady point or roller in the scaffolding, safety belts must conform to section 05.F of EM 385-1-1. Safety belts must hold at least 310 Lb. to include the weight of the worker and the equipment he carries with, therefore the worker mustn’t carry and heavier equipment (his weight + equipment <310 Lb.
The worker mustn’t use his own belt as safety belt instead of the certified safety belt with the falling stop equipment. All safety belts must be tested according to the conditions of 05.F.02 of the EM385-1-1 manual.
An adequate supply of cool drinking water shall be supplied by may company from sources approved by local health authorities.
Containers for drinking water will be clearly marked as to contents and not used jar other purposes. Only approved portable water system shall be used for the distribution of drinking water.
Toilet facilities will be available by the subcontractor at the jobsite.
A complete first aid kit will maintain at the jobsite weekly to insure that they are well stocked.
The crews will be notified by the Safety Manager about the closest evacuation area in case the base is under attack The Safety Manager will check with the area leader for approved “sanitized” map erecting on a billboard.
Personal Protective Equipment
All personnel will be required to wear safety glasses, safety shoes, eye protection and ear protection and other protective equipment whenever the job calls for them and as directed by the SEI construction manager.
Persons exposed to vehicular traffic will wear apparel marked with a reflective or high visibility material.
All persons exposed to dust or flying particles will be required to use eye and/or face protection.
Employees shall wear clothing suitable for the Weather and work conditions.