FprEN 13763-13

SLOVENSKI STANDARD
01-april-2021
Eksplozivi za civilno uporabo - Detonatorji in zakasnilniki - 13. del: Ugotavljanje
odpornosti električnih detonatorjev proti razelektritvi
Explosives for civil uses - Detonators and relays - Part 13: Determination of resistance of
electric detonators to electrostatic discharge
Explosivstoffe für zivile Zwecke - Zünder und Verzögerungselemente - Teil 13:
Bestimmung der Widerstandsfähigkeit elektrischer Zünder gegen elektrostatische
Entladungen
Explosifs à usage civil - Détonateurs et relais - Partie 13: Détermination de la résistance
à la décharge électrostatique des détonateurs électriques
Ta slovenski standard je istoveten z: prEN 13763-13
ICS:
71.100.30 Eksplozivi. Pirotehnika in Explosives. Pyrotechnics and
ognjemeti fireworks
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
prEN 13763-13
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2021
ICS 71.100.30 Will supersede EN 13763-13:2004
English Version
Explosives for civil uses - Detonators and detonating cord
relays - Part 13: Determination of resistance of electric
detonators to electrostatic discharge
Explosifs à usage civil - Détonateurs et relais pour Explosivstoffe für zivile Zwecke - Zünder und
cordeau détonant - Partie 13: Détermination de la Sprengschnurverbinder - Teil 13: Bestimmung der
résistance à la décharge électrostatique des Widerstandsfähigkeit elektrischer Zünder gegen
détonateurs électriques elektrostatische Entladungen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 321.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13763-13:2021 E
worldwide for CEN national Members.

prEN 13763-13:2021 (E)
Contents Page
European foreword . 3
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Principle . 6
5 Apparatus . 6
6 Preparation and handling of test samples and test pieces . 7
6.1 Handling of test samples . 7
6.2 Preparation of test pieces . 7
6.3 Adjustment of the ESD generator . 7
7 Procedure . 8
7.1 General. 8
7.2 Pin-to-pin configuration . 8
7.3 Pins-to-case configuration . 9
8 Expression of results . 10
9 Test report . 10
Annex A (normative) Adjustment of the electrostatic discharge generator . 11
Annex ZA (informative) Relationship between this European Standard and the essential
safety requirements of Directive 2014/28/EU relating to the making available on the
market and supervision of explosives for civil uses aimed to be covered . 13
Bibliography . 14

prEN 13763-13:2021 (E)
European foreword
This document (prEN 13763-13:2021) has been prepared by Technical Committee CEN/TC 321
“Explosives for civil uses”, the secretariat of which is held by UNE.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 13763-13:2004.
In comparison with the previous edition, the following technical modifications have been made:
a) in Clause 1, Scope, it is now specified that this document applies to explosives for civil uses;
b) Clause 4, Principle, has been added;
c) Clause 6, Procedure, has been updated;
d) Clause 8, Expression of results, has been added;
e) Annex A, Range of applicability of the test method, has been removed;
f) Annex ZA has been updated.
This document has been prepared under a Standardization Request (M/562) annexed to the Commission
Implementing Decision C(2019)6634 final as regards Explosives for civil uses given to CEN by the
European Commission and the European Free Trade Association, and supports Essential Safety
requirements of Directive 2014/28/EU.
For relationship with Directive 2014/28/EU, see informative Annex ZA, which is an integral part of this
document.
EN 13763, Explosives for civil uses — Detonators and detonating cord relays, is currently composed with
the following parts:
— Part 1: Requirements
— Part 2: Verification of thermal stability
— Part 3: Determination of sensitiveness to impact
— Part 4: Determination of resistance to abrasion of leading wires and shock tubes
— Part 5: Determination of resistance to cutting damage of leading wires and shock tubes
— Part 6: Determination of resistance to cracking in low temperatures of leading wires
— Part 7: Determination of the mechanical strength of leading wires, shock tubes, connections, crimps and
closures
— Part 8: Determination of resistance to vibration
prEN 13763-13:2021 (E)
— Part 9: Determination of resistance to bending of detonators
— Part 11: Determination of drop resistance of detonators and relays
— Part 12: Determination of resistance to hydrostatic pressure
— Part 13: Determination of resistance of electric detonator to electrostatic discharge
— Part 15: Determination of equivalent initiating capability
— Part 16: Determination of delay accuracy
— Part 17: Determination of no-fire current of electric detonators
— Part 18: Determination of series firing current of electric detonators
— Part 19: Determination of firing pulse of electric detonators
— Part 20: Determination of total resistance of electric detonators
— Part 21: Determination of flash-over voltage of electric detonators
— Part 22: Determination of capacitance, insulation resistance and insulation breakdown of leading wires
— Part 23: Determination of the shock-wave velocity of shock tube
— Part 24: Determination of the non-conductivity of shock tube
— Part 25: Determination of transfer capacity of relay and coupling accessories
— Part 26: Definitions, methods and requirements for devices and accessories for reliable and safe function
of detonators and relays
— Part 27: Definitions, methods and requirements for electronic initiation system
prEN 13763-13:2021 (E)
Introduction
Detonators can be subjected to many forces, including vibration, during use, handling and transport. This
could cause material from the compositions to become loose creating a risk of inadvertent initiation
because of friction or other stimuli on the loose explosive.
prEN 13763-13:2021 (E)
1 Scope
This document specifies a method for determining of resistance of electric detonators to electrostatic
discharge (ESD).
This document is applicable to explosives for civil uses.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
prEN 13763-17:2021, Explosives for civil uses — Detonators and detonating cord relays — Part 17:
Determination of no-fire current of electric detonators
prEN 13763-21:2021, Explosives for civil uses — Detonators and detonating cord relays — Part 21:
Determination of flash-over voltage of electric detonators
prEN 13857-1:2021, Explosives for civil uses — Part 1: Terminology
3 Terms and definitions
For the purposes of this document, the terms and definitions given in prEN 13857-1:2021 and the
following apply.
3.1
bridgewire ignition system
internal components of an electric detonator that convert electrical energy into the first pyrotechnical
output by the mean of a resistive bridgewire heated by Joule heating effect
3.2
pins-to-case configuration
configuration in which the electrostatic discharge occurs between the two short-circuited leading wires
ends and the detonator casing
3.3
pin-to-pin configuration
configuration in which the electrostatic discharge occurs through the bridgewire of the ignition system
4 Principle
The test piece is subjected to electrostatic discharge of a specific energy, checking whether detonation
occurs. The discharge is applied to the test piece through the bridgewire, pin-to-pin and between the
short-circuited leading wires and the metal shell, pins-to-case. Detonation or no detonation of the test
piece is recorded. The detonators are categorized in safety classes depending of the ESD level they can
withstand without detonating.
5 Apparatus
5.1 Electrostatic discharge generator (ESD generator), with capacitance ranging from 500pF to
3 500pF and voltage sufficient to give the required impulse according to Table 1.
5.2 Equipment to record the ESD current and calculate the ESD impulse delivered to the detonator.
prEN 13763-13:2021 (E)
5.3 Conditioning chamber for maintaining a temperature of (20 ± 5) °C and a relative humidity of not
greater than 60 %.
6 Preparation and handling of test samples and test pieces
6.1 Handling of test samples
Test samples for detonators should be handled according to EN ISO/IEC 17025:2017, 7.4.
6.2 Preparation of test pieces
Select 50 electric detonators of the same type, with the same design, compositions and loading
configuration according to the manufacturer's specification. Having a bridgewire ignition system and
charge composition ignited by a fuse head, whose fuse head has the same design and chemical
composition. If the detonators form part of a series with different delay times, select 25 detonators with
delay times as evenly distributed throughout the series as possible.
NOTE Protective elements added to the bridgewire ignition system to increase resistance to mechanical,
electrostatic or electromagnetic stress, such as a plastics sleeve on the fusehead, are regarded as part of the
bridgewire ignition system.
If necessary, remove between 10 mm and 20 mm of insulation from the ends of the leading wires to allow
them to be connected to the ESD generator.
6.3 Adjustment of the ESD generator
Adjust the ESD generator for each type of detonator in accordance with Annex A.
The ESD impulse to be applied to the detonator shall be in accordance with Table 1.
Table 1 — ESD impulse
a
Class of the detonator Class I Class II Class III Class IV
No-fire current stated
[A] 0,18 < Inf < 0,45 0,45 ≤ Inf < 1,20 1,20 ≤ Inf < 4,00 4,00 ≤ Inf
by the manufacturer
Minimum ESD
b
impulse for the “pin- [mJ/Ω] 0,3 6 60 300
to-pin” configuration
Minimum ESD
b
impulse for the “pins- [mJ/Ω] 0,6 12 120 600
to-case” configuration
a
Based on the manufacturer's stated value of the no-fire current.
b
All values shall have a
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