SAFETY
TRAINING
Company ______________________________ Location ____________________________ Date ________________
Vol 16 - No 23
DOUBLE-INSULATED TOOLS
In the construction industry, employees are
allowed to use their personal tools on the job
sites. However, the tools must meet all
regulatory compliance requirements just as if
they were provided by the employer. To avoid
the possibility of electrical shock, doubleinsulated tools should be used. Many home
tools are not double insulated.
Double-insulated tools help protect against
electrical shock. An electrical shock from a
tool can occur due to worn wiring that
causesexposed wire to touch the frame of an
appliance. Double-insulated tools have an
outer casing of plastic or some other
nonconductive material and are the only tools
with two-wire cord caps sold today that are
approved by the Underwriters Laboratories
(UL).
Each employee must understand that if their
tools and equipment do not meet the
minimum standards, the employer cannot
allow them to be used on the job site. Tools
and equipment must be inspected before
each use and maintained in accordance with
the manufacturers’ recommendations.
1926.302(a)(1) “Double insulated tools”
Electric power operated tools shall either be
of the approved double-insulated type or
grounded in accordance with Subpart K.
LE
DOUBATED
L
INSU
Model 0601
Hz
A
115 60 12
SF
C
372
W
039
D
RPM
9
6505
26777
1926.404(f)(7)(iv)(C)(6) Tools likely to be used
in wet and/or conductive locations need not
be grounded if supplied through an isolating
transformer with an ungrounded secondary of not over 50 volts. Listed or labeled portable tools
and appliances protected by a system of double insulation, or its equivalent, need not be
grounded. If such a system is employed, the equipment shall be distinctively marked to indicate
that the tool or appliance utilizes a system of double insulation.
A publication of
c
Engineering Safety Consultants, Inc. - P.O. Box 691447 - San Antonio, Texas 78269 - 1-800-327-1516
Visit our website at www.esc-safety.com for a complete list of all our safety services
2009 - All rights reserved. This publication may not be reproduced in any manner without the written permission of Engineering Safety Consultants, Inc.
SAFETY
TRAINING
Company ______________________________ Location ____________________________ Date ________________
Vol 16 - No 23
DOUBLE-INSULATED TOOLS
In the construction industry, employees are
allowed to use their personal tools on the job
sites. However, the tools must meet all
regulatory compliance requirements just as if
they were provided by the employer. To avoid
the possibility of electrical shock, doubleinsulated tools should be used. Many home
tools are not double insulated.
Double-insulated tools help protect against
electrical shock. An electrical shock from a
tool can occur due to worn wiring that
causesexposed wire to touch the frame of an
appliance. Double-insulated tools have an
outer casing of plastic or some other
nonconductive material and are the only tools
with two-wire cord caps sold today that are
approved by the Underwriters Laboratories
(UL).
Each employee must understand that if their
tools and equipment do not meet the
minimum standards, the employer cannot
allow them to be used on the job site. Tools
and equipment must be inspected before
each use and maintained in accordance with
the manufacturers’ recommendations.
1926.302(a)(1) “Double insulated tools”
Electric power operated tools shall either be
of the approved double-insulated type or
grounded in accordance with Subpart K.
LE
DOUBATED
L
INSU
Model 0601
Hz
A
115 60 12
SF
C
372
W
039
D
RPM
9
6505
26777
1926.404(f)(7)(iv)(C)(6) Tools likely to be used
in wet and/or conductive locations need not
be grounded if supplied through an isolating
transformer with an ungrounded secondary of not over 50 volts. Listed or labeled portable tools
and appliances protected by a system of double insulation, or its equivalent, need not be
grounded. If such a system is employed, the equipment shall be distinctively marked to indicate
that the tool or appliance utilizes a system of double insulation.
A publication of
c
Engineering Safety Consultants, Inc. - P.O. Box 691447 - San Antonio, Texas 78269 - 1-800-327-1516
Visit our website at www.esc-safety.com for a complete list of all our safety services
2009 - All rights reserved. This publication may not be reproduced in any manner without the written permission of Engineering Safety Consultants, Inc.