202/1995 Coll.
DECREE
The Czech Mining Authority
of 11 December 1997. August 1995
about the requirements to ensure the safety and health of the operator and
work on the electrical system in mining activities and in the activities
by using mining techniques
The Czech mining Office lays down pursuant to § 6 paragraph 1. 6 (a). Czech law)
the National Council No. 61/1988 Coll. on mining activities, explosives and
the State Mining Administration:
§ 1
The scope of the
The Decree sets out the requirements to ensure the safety and health at
and work on the electrical system when mining activity and
activities carried out using mining techniques.
§ 2
Interpretation of the terms
For the purposes of this Ordinance shall be deemed to
and) electrical system installations for the production, conversion, transmission, distribution and
consumption of electrical energy,
(b) electrical equipment) operation activities and tasks associated with the operation
electrical equipment, such as switching, regulating,
monitoring data permanently devices, synchronize, Exchange
threaded machine fuses,
c) tour of the Visual inspection of electrical equipment and sensory
to check the status of the electrical equipment and control of its activities,
(d)) work on the electrical equipment installation, inspection, maintenance and repair
electrical equipment, as well as all acts of workplace security
and measurement of portable device,
(e)) work on energized electrical equipment, in which the person
in direct contact with live parts of the electrical equipment or in
the danger zone by any part of the body or instrument, equipment or
the device works,
(f)) work on the electrical equipment without voltage electrical
the device or its parts which are not under stress or not on them
a malicious charge, including measures to ensure that there is no
dangerous electric current,
g) danger zone area around the electrical equipment or parts of it
under stress, in which the isolation level is not enforced to prevent
risk from this device,
h) a safe distance distance for safe work outside the danger
zone taking into account the type of work involved, formal
the qualification and the size of the voltage at the electrical equipment,
I) barrier obstacle preventing access to and contact with the electric
the device,
j) work with the supervision of the work on the electrical equipment specified by the person referred to in
detailed guidelines containing necessary security measures and under the
the control of the authorized person
to work with the supervision of) work on the electrical equipment, which is carried out for the
the permanent presence of a person who is responsible for the supervision,
l) Security command (' command ') command to perform the necessary
technical and organisational measures to ensure the safety of the work on the
the electrical equipment,
m) ensure a workplace a summary of the tasks required to create the conditions
safe work on the electrical equipment (power off, disconnecting, testing
voltage, short circuit, etc.),
n) working AIDS AIDS used to provide work and services in
electrical equipment (shorting and grounding device, discharge
equipment, insulation switch rods, fázovací rods, voltage Tester,
measuring instruments, cables, insulated tools, etc.),
about) a written record of proven way of getting to know about getting to know employees
with law, rule, or guideline, as well as working with the command
signed by the employee, indicating its content and period of issue.
§ 3
Operation of the electrical equipment
(1) Use electrical devices may only workers who have been with
This device proven to be familiar.
(2) the employee serving the electrical equipment may only be touched only those
parts of electrical equipment that are intended for the operator, such as
the handle of the switch disconnector switches, handles, levers, and buttons for this purpose.
(3) the employee serving the electrical equipment must not come close to
parts of energized electrical equipment closer than to a safe
distance; safety distances are listed in the annex, which is
part of this Ordinance.
(4) when the damage to the electrical equipment or failure which could
endanger the safety and health, the employee must provide serving electrical
equipment make arrangements that excludes this danger or at least
reduced. An employee serving electrical equipment reports the damage
or failure of the device to the employer.
§ 4
Work on the electrical equipment
(1) Work on the electrical system may be principle without tension.
Under stress, you can work only if it cannot be necessary part
the electrical equipment or the entire device off, if the devices are
Overview and section in which you want to work with, accessible.
(2) Work on the device that has not yet been mounted under tension
However, concurrency, or cannot be excluded from leadership emergence of plying
dangerous voltage induction shall be considered work under stress.
(3) work on the electrical equipment under voltage may be carried out in
the premises of the tight, wet, wet, in premises with increased
aggression, in all workplaces outdoors in the rain, storms, fog,
Gale and snowfall, if a special regulation ^ 1) provides otherwise.
(4) when you work near energized electrical equipment parts and
When you work on parts under voltage may be unprotected only that part of the
electrical equipment on which they are working. The other parts must be
protected by barriers.
(5) the work on the electrical equipment with a voltage above 1000 V are forbidden,
If an employee was forced to work on this equipment in the forward bend
or in other unstable position.
§ 5
Safety precautions when working on the electrical equipment without voltage
(1) work on the electrical equipment without voltage may exercise a person
Canny ^ 2) with supervision, or a person with higher qualifications.
(2) before starting any work on the electrical equipment without voltage
the electrical equipment must ensure by turning off, or turning it off and
disconnecting it. The electrical equipment must be switched off, or turn off and
disconnect from all the potential power. In the place where the electrical
the device turns off or disconnects, it places the employee table:
"Do not turn on, the device works". Where you cannot exclude the unwanted
turn on must be a power switch, plug in or locked out, or otherwise
secured, contactors shall be ensured by opening the control circuits,
compressed-air drive valve the compressed air must be sealed
control, control circuits and disjointed off remote control.
(3) in the case of the work on the power circuit of the electrical equipment must be
remove the fuse insert.
(4) after you turn off or disconnect the electrical equipment, the employee
verifies a surface or a measuring instrument that the electrical equipment or
in part, on which to work, in all the poles or stages without
voltage. From this verification voltage may be dispensed with if the
the ability to determine the status of the other is turned off in a reliable manner. Shorting
the device may be installed only after verification of the voltage, and it
so, that first contacts the ground, and then connects to all wires
the disabled device.
(5) Short-circuits and grounding of electrical equipment shall be made of all the
potential power and at the same time, such measures are taken, that no one
could not enter to the place with parts under voltage. When working on the electrical
the device is necessary to indicate the escape routes, which must remain permanently
loose.
§ 6
Safety precautions when working on the electrical equipment in the vicinity of the
parts under voltage
(1) work on the electrical equipment in the vicinity of parts under voltage may
engage a qualified person, ^ 3) where applicable, a person with higher qualifications.
(2) when working on the electrical equipment in the vicinity of parts under voltage
safety distance must be observed. If it is not possible to secure
distance observed, must be part of the under voltage protected by shields or
barriers, to avoid contact with live parts.
(3) Work on the electrical system may exercise a person conducting
and on the electrical equipment into) 1000 in observing safety distances
with the supervision of a person for a separate activity ^ 4)
(b)) on the electrical equipment above 1000 in under the supervision of a person for a separate
activity.
§ 7
Safety precautions when working on the electrical equipment under voltage
(1) work on the electrical equipment energized to 1000 V can perform
a qualified person.
(2) work on the electrical equipment under voltage above 1000 V can be
carried out at least two knowledgeable persons, of whom at least one is
person for a stand-alone activity that is at the same time responsible for performance
supervision.
(3) work on energized electrical equipment based on the B
may be carried out
and over 1000) for installations in or close to it, if the distance
less than secure;
(b)) for the device to 1000 V, where
-common areas of electrical equipment to over 1000 in the device
1000 V,
-conductor wire of the electrical equipment to 1000 in parallel with
the guidance above 1000 V or to cross and can result in dangerous
induced voltage.
(4) on the basis of statements B must also be carried out work on the electrical
device to 1000 in under stress, if they are
and common areas) of the electrical equipment to over 1000 in the device
1000 V,
(b)) wire conductors of electrical equipment to 1000 in parallel with
the guidance above 1000 V or to cross and can rise to dangerous
induced voltage.
(5) (B) issue an employee designated by the Command by the operator. Statement B is
issued only for one site and one working group with supervision
or the supervision of the designated person to work on the electrical equipment under voltage
and is valid for 24 hours from the moment of the commencement of work to ensure the
the workplace. In a long-running work, when electrical equipment remains
permanently disconnected and if the designated person has not changed, the command can be
(B) issued for a longer period, up to one week. (B) the validity of the order
ends with the last act, for which the command was issued, but always B
end of the period. If the commands are (B) issued to the related work for
several groups, must register in one place on the specified
the employee who coordinates the work.
(6) (B) shall contain a Statement
and the number of the command)
(b)), the date and time it is released,
(c) the name and signature of the employee), who issued the order,
(d) the name and signature of the employee) with supervision or supervision including
the date and hour of receipt of the command B,
(e)) the names and signatures of employees, who are required to ensure that the workplace,
f) the names and signatures of the members of the Working Group,
g) place and type of work,
(h)) the manner and procedure of the workplace,
I) warning and indication of the nearest places are part of the electrical
the equipment under voltage.
(7) (B) the Statement shall be drawn up and forwarded to the demonstrably intended
an employee of the
and, telecommunications)
(b)),
(c)).
(8) since the release of the statement (B) may be waived
and the risk of delay), especially in the case of threat to human life,
(b)) if (B) is replaced with the release of the rules on the safety and protection of the
health at work under the labour code,
(c)) when authenticating the voltage on the electrical device is switched off,
but or.
§ 8
The effectiveness of the
This Decree shall take effect on the date of publication.
President:
in the z.. Ing. Makarius CSc. v. r.
the Deputy
XIII.
The size of the danger zones and safe distance from live parts
electrical equipment
An overview of the distance depending on the voltage live parts
electrical equipment
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Rated Highest Air Air Air
voltage voltage distance distance distance
D3 D2 D1 UN UM
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kV kV mm mm mm
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1 1 0 400 400
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3 3.6 60 500 560
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6 7.2 90 500 590
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10 12 120 500 620
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30 36 320 800 1120
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45 52 480 900 1380
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110 123 1100 1500 2600
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220 245 2100 2500 4600
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400 420 3400 3600 7000
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1) § 216, 225, and Decree of the Czech Mining Authority 244 No 22/1989 Coll., on
safety and health at work and the safety of operations at
mining activities and in the activities to be carried out using mining techniques in the
underground. § 68, 77 and 96 Decree of the Czech Mining Authority No 26/1989 Coll.,
on safety and health at work and the safety of operations at
mining activities and in the activities carried out by using the
surface. § 34, 43 and 57 of the Decree the Czech Mining Authority no 51/1989 Coll.,
on safety and health at work and the safety of operations at
preparation and refining of minerals.
2) section 4 of the Decree of the Czech Office of work safety and the Czech mining
Office No. 50/1978 Coll., on professional competence in electrical engineering.
3) section 5 of the Decree of the Czech Office of work safety and the Czech mining
Office No. 50/1978 Sb.
4) section 6 of the Ordinance the Czech Office of work safety and the Czech mining
Office No. 50/1978 Sb.
