Regulation 85

of appropriate design and construction;

of sufficient capacity;

safe and without risks to health; and

adequately maintained.

all supply lines to pneumatic tools used within a tunnel in the worksite shall be fitted with water traps and where appropriate, safety chains or wires;

hydraulic oils with flashpoints which are lower than the working temperatures in the tunnel shall not be used in the worksite;

only high pressure hydraulic hoses and coupling shall be used in the tunnel and such hoses shall be properly protected;

only fire resistant hydraulic hoses shall be used in hydraulically activated machinery and equipment used in the tunnel;

all hydraulic lines shall be protected by insulation or other screening where there is a risk of burning through human contact;

only flameproof equipment shall be used whenever there is danger of the presence of flammable or explosive gases; (g)no petrol driven internal combustion engine shall be used in a tunnel;

no diesel engine shall be used in a tunnel unless it is so constructed that no air enters the engine without first being cleaned, and no fumes or sparks shall be emitted by the engine;

oil, grease or fuel stored in the tunnel shall be kept in tightly sealed containers in fire resistant areas at safe distances from explosives, magazines, electrical installations and away from the bottom of shafts; (j)gasoline or liquefied petroleum gases or other highly flammable substances shall not be used in the tunnel without the approval of the project manager of the worksite; and

all gasoline or liquefied petroleum gases or highly flammable substances used in the tunnel shall be removed immediately after use.