Layered system baselayers
Worn underneath an APC 2 outer garment as part of a tested layered system. Trapped air between layers boosts overall protection beyond the sum of the individual garment ratings.
TIER 1 OF 4 LIGHTEST PROTECTION LEVEL
THE BASICS
ELIM range: ~4–8 cal/cm² | Typical class: APC 1
ARC 1 is ProGARM’s lightest protection tier, designed for lower-energy tasks, layered systems, and baselayer garments. It covers polos, T-shirts, baselayers, and some trousers/coveralls — most often worn as a standalone layer for low-incident-energy work or underneath a heavier outer garment to add to a layered system’s total protection.
Key product: ProGARM 4693 Arc Flash Coverall — explicitly rated ELIM 6.2 cal/cm² / ATPV 6.7 cal/cm² (APC 1, ARC 1), designed for rail, utilities, and industrial electrical work.
In ProGARM’s range, ARC 1 appears across baselayers, polos and T-shirts, plus selected trousers and coveralls. These pieces are most often worn underneath an outer Arc Flash garment in a layered system, but can also be worn alone where the risk assessment permits.
Because the Open Arc Test gives a quantitative cal/cm² rating, ARC 1 is a precise measure rather than a category. The exact ELIM value for each product is shown on the SafetyICON™ label.
SUPPORTING STANDARDS
Use ARC 1 where your Arc Flash study or risk assessment confirms incident energy at the working distance is at or below the certified rating.
Worn underneath an APC 2 outer garment as part of a tested layered system. Trapped air between layers boosts overall protection beyond the sum of the individual garment ratings.
Standalone protection for tasks where the Arc Flash risk assessment confirms incident energy at the working distance is within ARC 1's certified rating.
Lightweight ARC 1 garments suit layered systems where heavier outerwear is impractical, provided the risk assessment confirms the protection level is appropriate.
Suitable for personnel observing or supervising electrical work, where they remain at safe working distance.
IMPORTANT
ARC 1 is the lightest tier in the ProGARM range. Where the Arc Flash risk assessment indicates higher incident energy at the working distance, the appropriate higher tier should be specified by your employer or competent person.
UPGRADE PATH
CERTIFIED PRODUCTS
Hi-Vis Orange
ProGARM 4694 Hi-vis Orange Ladies Arc Coverall (6.2 cal/APC 1)
4KA, APC1
View details
6460
ARC1 ELIM=5 cal/cm²
Two-Tone
ProGARM 6460 Lightweight Coverall (5 cal/APC 1)
4KA, Class 1
View details
8210
ELIM=3.6 cal/cm² ARC1
Navy Colour Collection
ProGARM 8210 Baselayer Top (3.6 cal/APC 1)
APC1
View details
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