Environmental Engineering Reference
In-Depth Information
obstructions. or. defects. each. day. before. use.. Their. operators. should. have. and. use.
appropriate.personal.protective.equipment.such.as.hard.hats,.safety.goggles,.safety.
shoes,.and.ear.protectors.
PoWered PlAtForms For BuIldIng mAIntenAnce
(29 cFr 1910.66)
All.completed.building.maintenance.equipment.installation.must.be.inspected.and.
tested.in.the.ield.before.being.placed.in.service..A.similar.inspection.and.test.must.
be.made.following.any.major.alteration.to.an.existing.installation..No.hoist.is.to.be.
subjected.to.a.load.in.excess.of.125.percent.of.its.rated.load.
Structural.supports,.tie-downs,.tie-in.guides,.anchoring.devices,.and.any.affected.
parts. of. a. building. included. in. the. installation. must. be. designed. by. or. under. the.
direction.of.a.registered,.experienced.engineer..Exterior.installations.must.be.capa-
ble. of. withstanding. prevailing. climatic. conditions.. The. building. installation. must.
provide.safe.access.to,.and.egress.from,.the.equipment.and.suficient.space.to.con-
duct.necessary.maintenance.
Affected.parts.of.the.building.must.have.the.capacity.to.sustain.all.the.loads.imposed.
by.the.equipment..The.affected.parts.of.the.building.must.be.designed.to.allow.the.
equipment.to.be.used.without.exposing.employees.to.a.hazardous.condition.
Repairs.or.major.maintenance.of.those.building.portions.that.provide.support.for.
the.suspended.equipment.must.not.affect.the.capability.of.the.building.to.meet.the.
requirements.of.this.standard.
The.equipment.power.circuit.must.be.an.independent.electrical.circuit.that.is.to.
remain.separate.from.all.other.equipment.within.or.on.the.building,.other.than.the.
power.circuits.used.for.hand.tools.that.will.be.used.in.conjunction.with.the.equip-
ment..If.the.building.is.provided.with.an.emergency.power.system,.the.equipment.
power.circuit.may.also.be.connected.to.this.system.
Equipment.installations.must.be.designed.by.or.under.the.direction.of.a.registered.
experienced.professional.engineer..The.design.is.to.provide.for.a.minimum.live.load.
or.250.pounds.for.each.occupant.of.a.suspended.or.supported.platform..Equipment.
that.is.exposed.to.wind.when.not.in.service.must.be.designed.to.withstand.forces.gen-
erated.by.winds.of.at.least.100.mph.at.30.feet.above.grade.and,.when.in.service,.must.
be.able.to.withstand.forces.generated.by.wind.of.at.least.50.mph.at.all.elevations.
Each.suspended.unit.component,.except.suspension.ropes.and.guardrail.systems,.
must.be.capable.of.supporting.at.least.four.times.the.maximum.intended.live.load.
applied.or.transmitted.to.that.component.
PoWer trAnsmIssIon equIPment guArdIng
(29 cFr 1910.219)
All. belts,. pulleys,. sprockets. and. chains,. lywheels,. shafting. and. shaft. projections,.
gears,.couplings,.other.rotating.or.reciprocating.parts,.or.any.movable.portion.within.
7.feet.of.the.loor.or.working.platform.must.be.effectively.guarded.
