Solar Lattice

Hazard

Moving parts

ID
hazard:moving-parts
IRI
https://solarlattice.org/kb/hazard/moving-parts
Status
active
Also known as
pinch points, tracker motion, generator moving parts, crush hazard, movable generator parts, suddenly moving parts
Category
Mechanical

Moving parts of machinery can crush or cut off body parts when a person is close to them while they move. In off-grid and backup systems, a Sunny Island can start a generator automatically, so the generator's moving parts can begin moving without warning. Run the generator only with its safety equipment, and install, maintain and service it according to the manufacturer's specifications. Tracking mounts add load-bearing moving parts, actuators and controls that need more maintenance than fixed arrays. The NESC requires parts that move suddenly and could injure people nearby to be guarded or isolated, and requires pulleys and belts to be guarded per ANSI/ASME B15.1. When you lift and move heavy frames, such as an HVAC-mounted frame on a battery enclosure, stay clear of the moving parts to avoid being crushed.

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Claims

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c1 drafted · lead Machine guarding proposed

Scope: standard NESC 2017 (IEEE C2-2017) proposed

Applies to equipment parts that move suddenly and are likely to injure people nearby. Pulleys, belts and mechanical transmission machinery are guarded per ANSI/ASME B15.1:2000.

shall be guarded or isolated
— NESC 2017 (IEEE C2-2017) Rule 122. Quoted with attribution; the text remains the publisher's copyright.

c2 drafted · lead Machine guarding proposed

Scope: standard NFPA 70E 2009 proposed

Rotating equipment: guards keep employees from contacting moving or energized parts.

Guards, barriers, and access plates shall be maintained
— NFPA 70E 2009 §230.2. Quoted with attribution; the text remains the publisher's copyright.

c3 drafted · lead Follow manufacturer instructions proposed

Scope: products Sunny Island 4.4M / 6.0H / 8.0H, Sunny Island 4548-US / 6048-US

Install, maintain and work on a generator that the Sunny Island can start automatically according to the generator manufacturer's specifications, and operate it only with its safety equipment.

c4 drafted · lead Keep clear of moving parts proposed

Scope: products Powin Stack750 / Centipede proposed

Applies when lifting and moving an HVAC-mounted frame during battery enclosure HVAC replacement.

Referenced by

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