ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Burning out of return(white) side of 120volt rec
by crselectric. 06/14/19 02:15 AM
Video door bell causing chime activation of coil
by JoeTestingEngr. 06/13/19 12:43 PM
Troubleshooting Voltage Drop Across Relay
by gfretwell. 06/09/19 11:49 AM
Apple Recalls Three-Prong Wall Plug Adapters
by Admin. 06/05/19 09:06 PM
New in the Gallery:
What is this for?
Plug terminals
Who's Online Now
1 registered members (Scott35), 10 guests, and 12 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Insulated Tool Retesting #203584
10/10/11 12:50 PM
10/10/11 12:50 PM
KJay  Offline OP
Joined: Nov 2007
Posts: 763
I’ve noticed that some of my insulated hand tools are getting older, some being dated from 2002, [hard to believe it’s been that long!], so was looking into any requirements for dielectric retesting and came across this info. Mine all have the two layer insulation on them and it is still in excellent shape, so it was interesting to find that other than cleaning and routine visual inspection, it seems that nothing else is really required.

General Requirements
Insulated tools are individually tested and certified by the manufacturer to be suitable for specific working conditions. Generally, the maximum rated voltage for insulated tools is 1000 volts AC and 1500 volts DC. When purchasing an insulated tool, look for compliance with one or more of the following standards: The International Electrotechnical Commission (IEC), The American Society for Testing and Materials (ASTM) and The Deutsches Institute for Normung (DIN-German Standard). The ASTM, IEC, and DIN do not test the tools for compliance; they just set the performance requirements for the insulation. The manufacturers do their own testing. The Association of German Electro Technicians (VDE) is an independent agency that tests a sample of each tool to ensure compliance.

Use and Care of Insulated Tools
•Keep tools clean and dry
•Inspect insulation prior to each use
•If you doubt the integrity of the insulation, destroy the tool or have it re-tested
•Follow the manufacturer’s temperature recommendations for use
•Have a qualified person inspect and re-certify tools annually for safe use
•Use other personal protective

Commonly Asked Questions
Q. Are there requirements for periodic re-testing of insulated hand tools?
A. Although there are not specific requirements for re-testing insulated hand tools, in compliance with 29 CFR 1910.355(a)(1)(ii), protective equipment shall be maintained in a safe, reliable condition and shall be periodically inspected or tested as required by 1910.137. Most manufacturers suggest inspecting the insulation before each use and having a qualified person perform an annual inspection and certification. To aid in the inspection process, some manufacturers offer two-layer insulation that will change color when the insulation has been breached.

Q. Can I use insulated tools on energized circuits?
A. Always follow the manufacturer’s recommendations for use. Although insulated tools may be tested and certified to 1000 volts AC, the testing agencies do not recommend using them on energized circuits. Most insulating tools are designed only for protection from accidental contact with energized circuits.

Arc Flash PPE Clothing, LOTO & Insulated Tools
Re: Insulated Tool Retesting [Re: KJay] #203592
10/11/11 04:27 PM
10/11/11 04:27 PM
renosteinke  Offline
Cat Servant
Joined: Jan 2005
Posts: 5,316
Blue Collar Country
I am not aware of any protocol for the periodic testing of insulated tools.

The 'standard' requires the actual insulation to be covered by a protective material of a contrasting color. This is to facilitate your telling if the outer, protective cover has been damaged.

As for 'working hot,' the use of insulated tools does not reduce PPE requirements one bit; you still get to wear your gloves.


2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman


Member Spotlight
SI,New Zealand
Posts: 8,260
Joined: July 2002
Show All Member Profiles 
Top Posters(30 Days)
Admin 2
Popular Topics(Views)
255,745 Are you busy
191,713 Re: Forum
181,487 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.017s Queries: 15 (0.004s) Memory: 0.9463 MB (Peak: 1.0628 MB) Zlib enabled. Server Time: 2019-06-19 07:34:43 UTC